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Owner’s Manual
Forerunner
®
205/305
GPS-enabled trainer for runners
© 2006 Garmin Ltd. or its subsidiaries
Garmin International, Inc.
1200 East 151st Street,
Olathe, Kansas 66062, U.S.A.
Tel. 913/397.8200 or
800/800.1020
Fax 913/397.8282
Garmin (Europe) Ltd.
Unit 5, The Quadrangle, Abbey
Park Industrial Estate, Romsey,
SO51 9DL, U.K.
Tel. 44/0870.8501241
Fax 44/0870.8501251
Garmin Corporation
No. 68, Jangshu 2nd Road,
Shijr, Taipei County, Taiwan
Tel. 886/2.2642.9199
Fax 886/2.2642.9099
All rights reserved. Except as expressly provided herein, no part of this manual may be
reproduced, copied, transmitted, disseminated, downloaded or stored in any storage medium,
for any purpose without the express prior written consent of Garmin. Garmin hereby grants
permission to download a single copy of this manual onto a hard drive or other electronic
storage medium to be viewed and to print one copy of this manual or of any revision hereto,
provided that such electronic or printed copy of this manual must contain the complete text of
this copyright notice and provided further that any unauthorized commercial distribution of this
manual or any revision hereto is strictly prohibited.
Information in this document is subject to change without notice. Garmin reserves the right
to change or improve its products and to make changes in the content without obligation to
notify any person or organization of such changes or improvements. Visit the Garmin Web site
(www.garmin.com) for current updates and supplemental information concerning the use and
operation of this and other Garmin products.
Garmin
®
, Forerunner
®
, Auto Lap
®
, and Auto Pause
®
are registered trademarks
and Virtual Partner
, Garmin Training Center
, and Multisport
are trademarks of
Garmin Ltd. or its subsidiaries and may not be used without the express permission
of Garmin.
May 2006 Part Number 190-00581-00 Rev. C Printed in Taiwan
Forerunner
®
205/305 Owner’s Manual i
INTRODUCTION
Introduction .......................... i
Contact Garmin .......................... ii
Getting Started .................... 1
Charging the Battery ..................1
Acquiring Satellite Signals .........2
Using the Heart Rate Monitor ....3
Extending the Strap ...................5
Buttons .......................................6
Pages .........................................7
User Profile ................................8
Training ................................ 9
Alerts ..........................................9
Auto Pause
®
............................12
Auto Lap
®
................................13
Virtual Partner
.......................15
Workouts: Quick, Interval, and
Advanced ..........................16
Courses ...................................24
Multi-sport Workouts ................28
History ............................... 31
Viewing History ........................32
Deleting History .......................34
Navigation ......................... 35
Viewing the Map ......................35
Marking Locations ....................36
Back to Start ............................39
Creating and Using Routes ......40
Viewing GPS Information .........42
Settings ............................. 43
General Settings ......................43
Data Recording ........................46
Changing Sport Settings ..........49
Setting Pace/Speed Zones ......50
Setting Heart Rate Zones ........51
Appendix ........................... 53
Cleaning and Care ...................53
Data Fields ...............................54
Heart Rate Information ............57
Garmin Training Center ...........61
Specifications ...........................62
Limited Warranty ......................
63
Warning ....................................67
Caution ....................................68
Index .................................. 69
TABLE OF CONTENTS
ii Forerunner
®
205/305 Owner’s Manual
INTRODUCTION
Contact Garmin
If you encounter any difficulty
while using your Forerunner, or
if you have any questions, in the
U.S.A. contact Garmin Product
Support by phone: 913/397.8200
or 800/800.1020, Monday–Friday,
8 am–5 pm Central Time; or visit
www.garmin.com/support. Click
Product Support and fill out the
form.
In Europe, contact
Garmin (Europe) Ltd. at
44/0870.8501241.
Tell us how you like this
manual! Fill out the Product
Documentation Survey. Go to
www.garmin.com/contactUs/
and click Product
Documentation Survey.
Product Registration
Help us better support you by
completing our online registration
today! Have the serial number
of your Forerunner handy and
connect to our Web site (www.
garmin.com). Look for the Product
Registration link on our home
page.
Use this area to record the serial
number (8-digit number located
on the back of the unit) in case
your Forerunner is lost, stolen, or
needs service. Be sure to keep
your original sales receipt in a
safe place or attach a photocopy
inside the manual.
Serial Number:
Forerunner
®
205/305 Owner’s Manual 1
GETTING STARTED
GETTING STARTED
Charging the Battery
Charge the Forerunner for three hours before using it. When the
battery is fully charged, the battery life is approximately 10 hours. To
avoid corrosion, be sure the Forerunner is completely dry before
charging or connecting to a personal computer.
To charge the Forerunner:
1. Snap the Forerunner into the
charging cradle.
2. Plug the small end of the AC
adapter into the mini-USB port
on the cradle. Plug the other end
into a standard wall outlet.
NOTE: The Forerunner will not charge outside the temperature range of
0°C–50°C (32°F–122°F).
You can also charge the Forerunner by connecting it to your personal
computer with the enclosed USB cable. However, you must install
Garmin Training Center before you connect to your computer. See page
61 to install Garmin Training Center.
mini-USB port
cradle
2 Forerunner
®
205/305 Owner’s Manual
GETTING STARTED
Acquiring Satellite
Signals
Before you begin using the
Forerunner, you must acquire
GPS satellite signals. To acquire
satellite signals, go outdoors
away from tall buildings and
trees. Acquiring satellite signals
may take 30–60 seconds.
To acquire satellites:
Go outdoors to an open area and
press the Power
button to turn
on the Forerunner.
Wait while the Forerunner
searches for satellites. For best
reception, make sure the GPS
antenna is facing up. Stand still
in an open area, and do not
begin walking or running until
the Locating Satellites page
disappears.
GPS antenna is
located here.
After the Locating Satellites page
disappears, you can begin your
run or other activity.
To turn off GPS and use the
Forerunner indoors, see page 44.
Forerunner
®
205/305 Owner’s Manual 3
GETTING STARTED
Using the Heart Rate Monitor
NOTE: The heart rate monitor works with the Forerunner 305 only.
Wear the heart rate monitor directly on your skin, just below your
breastplate. It should be snug enough to stay in place during your run.
To position the heart rate monitor:
1. Push one tab on the strap through the slot in the heart rate monitor.
Press the tab down.
sensors
2. Wet both sensors on the back of the heart rate monitor to create a
strong connection between your pulse and the transmitter.
4 Forerunner
®
205/305 Owner’s Manual
GETTING STARTED
3. Wrap the strap around your
chest and attach it to the
other side of the heart rate
monitor.
NOTE: If you have trouble with
erratic heart rate readings, position
the transmitter on your back instead
of your chest, or try applying
electrode gel.
4. Turn on the Forerunner
and bring it within range (3
meters) of the heart rate
monitor.
The heart rate icon on the Timer
page changes from flashing to
constant when the Forerunner
begins receiving data.
Be sure to move away from other
heart rate monitors while the
Forerunner is trying to “pair” with
your heart rate monitor for the
first time. After the Forerunner
pairs with your heart rate monitor,
you can go near other heart rate
monitors. For more information
on pairing and troubleshooting,
see pages 59-60.
Forerunner
®
205/305 Owner’s Manual 5
GETTING STARTED
Extending the Strap
If the Forerunner strap is not
long enough for your wrist, you
can replace it with the included
extension strap and pin removal
tool.
Pin removal tool
To add the extension strap:
1. Remove the short watch strap
(with the buckle). Use the pin
removal tool to pull one spring
bar back so that it clears
the edge of the case. Then
remove the strap.
2. Install the extension strap.
Place one side of the spring
bar into one pinhole.
3. Compress the spring bar and
snap it into the other pinhole.
6 Forerunner
®
205/305 Owner’s Manual
GETTING STARTED
Buttons
power
Press and hold to turn unit on/off.
Press to turn backlight on/off.
mode
Press to view Timer or Main Menu.
Press to exit a menu or page.
Press and hold to change sports.
lap/reset
Press to create a new lap.
Press and hold to reset the timer.
start/stop
Press to start or stop the timer.
enter
Press to select options and to acknowledge messages.
arrows
Press to highlight options.
Press to scroll through menus and data fields.
NOTE: If the unit stops responding to button presses, press mode and
lap/reset simultaneously to reset the unit.
Forerunner
®
205/305 Owner’s Manual 7
GETTING STARTED
Pages
Press mode to switch between the Timer and the Main Menu.
Shows what
sport you’re in
Heart rate
icon
(305 only)
Battery
icon
Timer
Main Menu
mode
While viewing the Timer, press the arrows to view other Timer
pages. To scroll through these pages automatically, see page 45. To
change the data fields on these pages, see page 43.
Timer pages
Press and hold mode any time to change sports.
8 Forerunner
®
205/305 Owner’s Manual
GETTING STARTED
User Profile
The Forerunner uses information
that you enter about yourself to
calculate calorie consumption.
Set your user profile before
you begin using the Forerunner
to ensure that it is recording
accurate data.
To set your user profile:
1. Press mode to access the
Main Menu.
2. Select Settings > General >
User Profile.
3. Use the arrows and
enter to enter your gender,
birth date, and weight.
TIP: Press mode to exit a menu or
a page. Press mode repeatedly to
return to the Timer or Main Menu.
Select the
arrows to
move left or
right within a
field.
Forerunner 305 only: When
you set your user profile for the
first time, a Max HR message
appears. Select Yes to adjust
your maximum heart rate based
on your user profile.
Forerunner
®
205/305 Owner’s Manual 9
TRAINING
TRAINING
NOTE: Always consult your physician
before you begin or modify any
exercise program.
Use your Forerunner to set goals
and alerts, train with a Virtual
Partner
, program simple or
advanced workouts, and plan
courses based on existing runs.
Alerts
Use your Forerunner alerts
to train toward certain time,
distance, speed, and heart rate
goals. You can set separate alerts
in each sport mode.
NOTE: Alerts do not function
during quick, interval, or advanced
workouts.
Time and Distance Alerts
Time and distance alerts are
useful for long runs when you
want to train for a certain amount
of time or distance.
When you reach your goal, the
Forerunner beeps and displays a
message.
To set a time or distance alert:
1. Press mode to access the
Main Menu. Select Training.
2. Select Training Options >
Alerts > Time/Dist Alert.
3. In the Time Alert field, select
Once or Repeat.
10 Forerunner
®
205/305 Owner’s Manual
TRAINING
4. Enter a time in the Alert At
field.
5. In the Distance Alert field,
select Once or Repeat.
6. Enter a distance in the Alert
At field.
TIP: Press mode repeatedly to exit.
Using Pace/Speed Alerts
Pace alerts (called speed alerts
in Biking or Other mode) notify
you if you exceed or drop below a
certain pace.
The pace alert takes advantage
of pace zones, which are ranges
of pace that you can store in the
Forerunner. For more information,
or to set your pace/speed zones,
see page 50.
To set a pace/speed alert:
1. Press mode to access the
Main Menu. Then select
Training.
2. Select Training Options >
Alerts > Pace (Speed) Alert.
3. In the Fast Pace Alert field,
select a pace zone from the
menu or select Custom to
enter your own alert value.
4. Repeat for the Slow Pace
Alert.
Forerunner
®
205/305 Owner’s Manual 11
TRAINING
Heart Rate Alerts
NOTE: Heart rate alerts are a feature
of the Forerunner 305 only.
The heart rate alert notifies you if
your heart rate exceeds or drops
below a specific number of beats
per minute (bpm).
Heart rate alerts can also notify
you if your heart rate exceeds
or drops below a certain heart
rate zone—a range of beats
per minute. The five commonly
accepted heart rate zones can
help you determine the intensity
of your workout. For more
information, or to set your heart
rate zones, see page 51.
To set a heart rate alert:
1. Press mode to access the
Main Menu. Then select
Training.
2. Select Training Options >
Alerts > HR Alert.
3. In the Min HR Alert field,
select a zone from the menu
or select Custom to specify
your own alert value.
4. Repeat for the Max HR Alert.
The maximum value allowed
is 235 bpm.
NOTE: When entering custom
heart rate values, you must set your
minimum and maximum alerts at
least five bpm apart.
12 Forerunner
®
205/305 Owner’s Manual
TRAINING
Using Cadence Alerts
NOTE: Cadence alerts are a feature
of the Forerunner 305 only and can
only be set in Biking mode.
If you own an optional Garmin
cadence sensor, you can use
cadence alerts. The cadence
alert notifies you if your cadence
exceeds or drops below a specific
number of revolutions of the
crank arm per minute (rpm).
Setting a cadence alert is similar
to setting a heart rate alert. The
maximum cadence value allowed
is 255. Be sure to change to
Biking mode when setting a
cadence alert.
For more information about
Garmin cadence sensors, visit
www.garmin.com.
Auto Pause
®
You can set the Forerunner to
pause the timer automatically
during your run when you stop
moving or when your pace
drops below a certain value.
This setting is helpful if your
path includes stop lights or other
places where you need to slow
down or stop.
NOTE: Auto Pause does not
work during Interval or Advanced
workouts.
When you turn on Auto Pause,
the Forerunner tracks any
paused time as Rest Time and
any paused distance as Rest
Distance. To add these data fields
to a Timer page, see page 43.
Forerunner
®
205/305 Owner’s Manual 13
TRAINING
To set Auto Pause:
1. Press mode to access the
Main Menu.
2. Select Training > Training
Options > Auto Pause.
3. In the Auto Timer Pause
field, select When Stopped,
or select Custom Pace to
enter a value.
TIP: Press mode repeatedly to exit.
Auto Lap
®
You can use Auto Lap to start a
new lap automatically after you
have traveled a certain distance
or passed a certain point in your
run. This setting is helpful for
comparing your performance
over different parts of a run (each
mile/kilometer or a major hill, for
example).
NOTE: Auto Lap does not work
during interval or advanced workouts.
To set Auto Lap:
1. Press mode to access the
Main Menu.
2. Select Training > Training
Options > Auto Lap.
3. In the Auto Lap Trigger field,
select By Distance to specify
a value.
14 Forerunner
®
205/305 Owner’s Manual
TRAINING
Auto Lap by distance
If you select By Position,
the Forerunner marks a lap
automatically each time you
pass certain places during
your run. Choose from the
following options:
Auto Lap by position
Lap Press only–starts a new
lap each time you press the
lap button and each time you
pass that location again.
Start And Lap
–starts a new
lap each time you pass the
starting point of your run,
each time you press the lap
button, and each time you
pass those locations again.
Mark And Lap–starts a new
lap at a specific location you
mark before your run, each
time you press the lap button,
and each time you pass those
locations again.
If you select Mark And
Lap, go to the place where
you want to mark your
first lap. Then select Mark
Position. When you pass
this place during your run, the
Forerunner laps automatically.
Forerunner
®
205/305 Owner’s Manual 15
TRAINING
Virtual Partner
The Virtual Partner is a unique
tool designed to help you meet
your training goals. When turned
on, the Virtual Partner competes
with you automatically during
quick workouts and courses.
See the following pages to learn
more about quick workouts and
courses.
Virtual
Partner
You
If you are ahead of the Virtual
Partner, the bottom field
background is white. If you are
behind, the background is black,
as shown.
To see Virtual Partner data:
1. Set up a quick workout or
course.
2. Press start.
3. Press the arrows to
view all Timer pages.
To turn off Virtual Partner:
1. Press mode to access the
Main Menu.
2. Select Training > Training
Options > Virtual Partner.
3. In the Virtual Partner field,
select Off.
16 Forerunner
®
205/305 Owner’s Manual
TRAINING
Workouts: Quick,
Interval, and Advanced
You can set up quick, interval,
or advanced workouts on the
Forerunner. If you set up an
advanced workout, you can save,
edit, and transfer it from your
computer to your Forerunner
using Garmin Training Center.
Quick and interval workouts
cannot be saved; they are
replaced each time you use them.
Quick Workouts
For quick workouts, you enter
your time, distance, or pace
goals, and the Forerunner
displays the Virtual Partner to
help you achieve them.
Distance & Time—enter how far
you want to go and how long it
should take.
Time & Pace—enter how long
you want to work out and how
fast you want to go.
Distance & Pace—enter how far
you want to go and how fast you
want to go.
NOTE: Alerts do not function during
quick workouts.
To set up a quick workout:
1. Press mode to access the
Main Menu.
2. Select Training > Workouts
> Quick Workouts.
3. Select the type of quick
workout you want to do.
4. Enter values in the top two
fields on the page. You can
select values from the list, or
select Custom to enter your
own value.
Forerunner
®
205/305 Owner’s Manual 17
TRAINING
5. Check the third field to ensure
that the calculation seems
reasonable. If not, make
changes to the top two fields.
6. Select Done?.
7. Press start to begin your
workout.
Interval Workouts
For interval workouts, you enter
the time or distance you want to
run and the number of repetitions
you want to complete:
Run a certain distance and
rest for a certain amount of
time.
Run for a certain distance
and rest for a certain
distance.
Run for a certain amount of
time and rest for a certain
amount of time.
Run for a certain amount of
time and rest for a certain
distance.
To create an interval workout:
1. Press mode to access the
Main Menu. Then select
Training.
2. Select Workouts > Interval.
3. Select an option from the
Interval Workout page
according to how you want to
set up intervals.
18 Forerunner
®
205/305 Owner’s Manual
TRAINING
4. Enter distance or time values
into the appropriate fields.
5. In the Reps field, enter
number of times you want to
repeat each interval.
6. If you want to add an extra
lap for warm up and for cool
down, select Warmup &
Cooldown.
7. Select Done?.
8. Press start to begin your
workout.
If you selected Warmup &
Cooldown, press lap at the end
of your warmup lap to start your
first interval. At the end of your
last repetition, the Forerunner
automatically starts a cooldown
lap. When you are finished
cooling down, press lap to end
your workout.
As you approach the end of each
interval lap, an alarm sounds, and
a message appears, counting
down the time until a new lap
begins. To end any interval lap
early and go to the next interval,
press lap.
NOTE: Auto Pause, Auto Lap, and
Alerts do not function when you are
doing an interval workout.
Forerunner
®
205/305 Owner’s Manual 19
TRAINING
Advanced Workouts
Your Forerunner allows you
to create and save advanced
workouts that include goals
for each workout step and
varied distances, times, and
rest laps. After you create and
save a workout, you can use
the Garmin Training Center
software to schedule the workout
for a particular day. Scheduling
allows you to save setup time by
planning workouts in advance
and storing them on your
Forerunner. For more information
about installing Garmin Training
Center, see page 61.
Creating Advanced Workouts
Garmin recommends that you use
Garmin Training Center to create
workouts and transfer them to
your Forerunner. However, you
can create an advanced workout
directly on your Forerunner if
you wish. Note that you cannot
use the Forerunner to schedule
workouts; you must use Garmin
Training Center.
NOTE: If you create a workout on
the Forerunner, be sure to transfer
it to Garmin Training Center. The
workout will be overwritten from the
Forerunner if you load workouts from
Garmin Training Center.
To create an advanced workout
using the Forerunner:
1. Press mode to access the
Main Menu. Then select
Training.
2. Select Workouts >
Advanced > <Create New>.
3. Enter a workout name in the
top field.
20 Forerunner
®
205/305 Owner’s Manual
TRAINING
4. Select “1. Open No Target.”
Then select Edit Step.
5. In the Duration field, select
how long you want the step to
last. If you select Open, you
can end the step during your
workout by pressing lap.
6. Below Duration, enter the
value where you want the
step to end.
7. In the Target field, select your
goal during the step (speed,
heart rate, cadence, or none).
NOTE: Heart rate and cadence
targets are for the Forerunner 305
only.
8. Below Target, enter a
goal value for this step (if
necessary). For example,
if your target is heart rate,
select a heart rate zone or
enter a custom range.
9. When you are finished with
this step, press mode.
10. To enter another step, select
<Add New Step>. Then
repeat steps 5–9.
11. To mark any step as a rest
step, select the step. Then
select Mark as Rest Step
from the menu. Rest steps
are noted in your workout
history.
Forerunner
®
205/305 Owner’s Manual 21
TRAINING
To repeat steps:
1. Select <Add New Step>.
2. In the Duration field, select
Repeat.
3. In the Back to Step field,
select the step you want to
return to.
4. In the Number of Reps
field, enter the number of
repetitions.
5. Press mode to continue.
Starting Advanced Workouts
Once you begin an advanced
workout, the Forerunner displays
each step of the workout,
including the name of the step,
the goal (if any), and current
workout data.
To start an advanced workout:
1. Press mode to access the
Main Menu.
2. Select Training > Workouts
> Advanced.
If you have scheduled
workouts in Garmin Training
Center, this menu appears.
3. Select the workout you want
to start.
4. Select Do Workout.
NOTE: Auto Pause, Auto Lap, and
Alerts do not function when you are
doing an advanced workout.
22 Forerunner
®
205/305 Owner’s Manual
TRAINING
During the workout, press the
arrows to view more data
pages.
An audible alarm sounds when
you are about to finish a workout
step. A message appears,
counting down the time or
distance until a new step begins.
To end any workout step early
and go to the next step, press
lap. To end the entire workout
early, press mode and select
Training > Stop Workout.
Advanced workouts are sport-
specific, which means you create
workouts for a specific sport,
and you must do them in that
sport. For example, if you want
to create an advanced workout
in the Forerunner for biking, you
must switch to Biking mode.
The Forerunner automatically
switches to the correct sport
when you select an advanced
workout. For example, if you
try to start a Running workout
while you are in Biking mode, the
Forerunner changes to Running
mode automatically.
Forerunner
®
205/305 Owner’s Manual 23
TRAINING
Editing Advanced Workouts
You can edit workouts within
Garmin Training Center or directly
in the Forerunner. Note that
Garmin Training Center serves
as the “master list” of workouts.
If you edit a workout directly in
the Forerunner, the changes are
overwritten the next time you
transfer workouts from Garmin
Training Center. To make a
permanent change to a workout,
edit the workout in Garmin
Training Center and then transfer
it to your Forerunner.
To edit an advanced workout:
1. Press mode to access the
Main Menu.
2. Select Training > Workouts
> Advanced.
3. Select the workout you want
to change. Then select Edit
Workout.
4. Select the step you want to
edit. Then select Edit Step.
5. Make any necessary
changes, and press mode.
6. Edit other steps as necessary.
To delete an advanced
workout:
1. Press mode to access the
Main Menu.
2. Select Training > Workouts
> Advanced.
3. Select the workout you want
to delete.
4. Select Delete Workout.
Select Yes to confirm.
24 Forerunner
®
205/305 Owner’s Manual
TRAINING
Courses
Another way you can use the
Forerunner for custom training
is to create a course based on
a previously recorded activity.
Then you can race against the
course, trying to match or exceed
previously set goals. You can
also use the Virtual Partner when
training with courses. To turn on
Virtual Partner, see page 15.
Creating Courses
We recommend that you use
Garmin Training Center to create
courses and transfer them to your
Forerunner. However, you can
create and save a course directly
on your Forerunner if you wish. If
you want to add course points to
a course, you must use Garmin
Training Center. See the next
page for more information.
To create a course using the
Forerunner:
1. Press mode to access the
Main Menu. Select Training >
Courses > <Create New>.
2. From the History page, select
an entry on which to base
your course.
3. Enter a name for the course
in the top field.
4. Press mode to exit.
Forerunner
®
205/305 Owner’s Manual 25
TRAINING
Adding Course Points
You can mark course points, or
places on your course that you
want to remember, such as water
stops, turns, or distance goals.
You must use Garmin Training
Center to add course points to
any course. For more information,
refer to the Garmin Training
Center Help files.
Starting a Course
To start a course:
1. Press mode to access the
Main Menu. Then select
Training > Courses.
2. Select the course you want to
start.
3. Select Do Course.
After you start a course, press
the arrows to see all
course data. If you have added
course points to a course, the
Forerunner shows you the
distance to the next course point.
Course data fields
Distance to next
course point
Press the arrows to the
Elevation Profile page or the
Virtual Partner page. You can
also view your Virtual Partner on
the map, represented by a gray
triangle (see the next page). To
turn on Virtual Partner, see page
15.
26 Forerunner
®
205/305 Owner’s Manual
TRAINING
Press mode to follow your course
on the map.
A course on the map.
Your current
position
Your previous
performance
Course
point
The gray triangle shows your
original performance.
The black triangle shows your
current position.
Press mode again to view the
Compass page. If you are off-
course, follow the arrow to get
back to the course. Then, the
arrow points in the direction you
should continue in order to stay
on the course.
Compass Page
You can include a warmup before
you actually begin running your
course. Press start to begin
the course, and then warm
up as normal. Be sure to stay
away from your course path as
you warm up. When you are
ready to begin the course, head
toward your course starting
point. When you are reach the
course, the Forerunner displays
an “On Course” message and
synchronizes the gray and
black triangles.
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205/305 Owner’s Manual 27
TRAINING
If you stray away from the course,
the Forerunner displays an “Off
Course” message. The gray
triangle continues on the course
without you.
To end a course manually:
1. Press mode to access the
Main Menu.
2. Select Training > Stop
Course.
To edit a course name:
1. Press mode to access the
Main Menu. Then select
Training > Courses.
2. Select the course you want
to rename. Then select Edit
Course.
3. Edit the course name.
To delete a course:
1. Press mode to access the
Main Menu. Then select
Training > Courses.
2. Select the course you want
to delete. Then select Delete
Course. Select Yes to
confirm.
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TRAINING
Multi-sport Workouts
Triathletes, duathletes, and other
multi-sport competitors can take
advantage of the Forerunner’s
multi-sport workouts. When you
set up a multi-sport workout,
you can switch between sport
modes and still view your total
time and distance for all sports.
For example, you can switch from
Biking mode to Running mode
and view your total time and
distance for biking and running
throughout your workout.
The Forerunner stores multi-sport
workouts in history and includes
total time, distance, average
heart rate, and calories for all
sports in the workout. It also
includes specific details for each
sport. To see the sport-specific
details, you must switch sport
modes. For example, to see
details for the Biking portion of
a multi-sport workout, switch to
Biking mode.
You can use multi-sport workouts
manually, or you can preset multi-
sport workouts for races and
other events.
Using Multi-sport Manually
You can create a manual multi-
sport workout by changing sport
modes during your workout
without resetting the timer. When
you change sport modes, press
the arrows to see the Multi-
sport Timer page (shown on the
next page).
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205/305 Owner’s Manual 29
TRAINING
To create a multi-sport workout
manually:
1. Start and complete a workout
in any sport. Press stop to
finish your workout, but do not
reset the timer.
2. Press and hold mode until the
Change Sport menu appears.
3. Select another sport. A
new Multi-sport Timer page
appears.
Multi-sport timer page
4. Press start to begin your
workout in the new sport.
Auto Multi-sport Workouts
If you are participating in a race
or event, you can set up an auto
multi-sport workout that includes
each sport in the event. You
can also include transition time
from one sport to the next. Move
seamlessly from sport to sport by
pressing the lap button.
To set up an auto multi-sport
workout:
1. Press mode to access the
Main Menu. Select Training >
Auto Multisport.
2. To change a sport mode in
the list, select the sport.
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TRAINING
3. Select an option from the
menu. Edit Leg changes
this sport mode to a different
sport. Insert Leg inserts
another sport mode before
this sport. Remove Leg
removes this sport mode from
the list.
4. To add a sport mode to the
end of the list, select <Add
Sport>.
5. To include transition time
between each sport mode,
select Include Transition.
6. To start your workout, select
Start Multisport.
To change from one sport mode
to the next, press lap. If you have
included transition time, press
lap when you are finished with
one sport to start the transition
time. Press lap again to end the
transition time and begin the next
sport.
To stop Auto Multisport:
Press mode to access the Main
Menu. Select Training > Stop
Multisport.
You can also clear a multi-sport
workout by pressing stop and
then pressing and holding reset
to reset the timer.
Forerunner
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205/305 Owner’s Manual 31
HISTORY
HISTORY
Your Forerunner automatically
saves all training data (when the
timer is started) and can hold up
to two years (1000 laps) of data
in memory. You can view the data
on your Forerunner or transfer
the history to the Garmin Training
Center software, where you can
analyze your data.
When the memory is full, the
Forerunner begins overwriting
old data. Load your history
into Garmin Training Center
periodically to keep track of all of
your activities.
History data includes time,
distance, average pace, best
pace, calories, and detailed lap
information. Forerunner 305
history data also includes heart
rate. No data is recorded while
the timer is stopped.
About History Detail
The Forerunner displays history
details differently, depending
on the type of training you
completed. Details of simple
activities appear on one summary
page. Details of quick workouts,
interval workouts, advanced
workouts, and courses appear
with tabs, which organize
information into sections. To view
information on different tabs,
press the arrows.
Interval workout history
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HISTORY
Viewing History
You can view history by day,
week, or totals.
To view history by day:
1. Press mode to access the
Main Menu.
2. Select History > [Sport] > By
Day.
3. Press to scroll through the
list. As you scroll, summary
details appear below the list.
4. Select an entry to view
details. Select View Laps for
additional lap detail.
Laps of an interval workout. The
arrow indicates a rest lap.
To view laps on the map:
1. While viewing details for a
history entry, select View
Laps.
2. Select a lap in the list. Then
select View on Map.
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205/305 Owner’s Manual 33
HISTORY
3. Press the and arrows to
zoom in and out on the map.
Select Next to view the next
lap.
To delete laps or entire records
from history:
1. While viewing details for an
activity, select View Laps.
2. Select the lap you want to
delete.
3. Select Delete Lap or Delete
Entire Run. Select Yes to
confirm.
To view history by weeks:
1. Press mode to access the
Main Menu. Then select
History > [Sport] > By Week.
2. Press to scroll through the
list of weeks. As you scroll,
totals for each week appear
below the list.
3. Select a week to view details
in that week by day.
To view history totals:
1. Press mode to access the
Main Menu. Select History
> [Sport] > Totals. Totals
appear for distance, time, and
calories for all of your saved
activities.
2. Select View Weeks to see a
list of weeks.
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HISTORY
Deleting History
After you have transferred old
Forerunner data to Garmin
Training Center, you may want to
delete the history from your unit.
To delete history:
1. Press mode to access the
Main Menu. Then select
History > [Sport] > Delete....
2. Select Keep 1 Month, Keep
3 Months, or Delete All.
Select Yes to confirm.
Forerunner
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205/305 Owner’s Manual 35
NAVIGATION
NAVIGATION
Use the GPS navigation features
of your Forerunner to view your
path on a map, save locations
you want to remember, create
routes, and find your way home.
Viewing the Map
Before you use the navigation
features, you may want to
configure the Forerunner to
display the Map page.
To add the Map page:
1. Press mode to access the
Main Menu.
2. Select Settings > General >
Map.
3. In the Show Map field, select
Yes.
Press mode to see the Timer,
Map, and Main Menu pages.
When you start the timer and
begin to move, a tiny dotted line
appears on the map, showing
you exactly where you have
traveled. This dotted line is called
a track. To zoom in or out on the
map, press the arrows. To
change map settings, see page
47.
You
Zoom
level
Points to North
Map
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NAVIGATION
Marking Locations
A location is any point that you
store in memory. If you want to
remember landmarks or return
to a certain spot, mark a location
there. The location appears on
the map with a name and symbol.
You can find, view, and go to
locations at any time.
To mark your location:
1. Go to the place where you
want to mark a location.
2. Press mode to access
the Main Menu. Select
Navigation > Mark Location.
3. Enter a name in the top right
field. You can also change the
symbol in the top left field and
the elevation.
4. Select OK.
To mark a location using lat/lon
coordinates:
1. Press mode to access
the Main Menu. Select
Navigation > Mark Location.
2. Select the Position field.
Enter the latitude and
longitude of the location you
want to mark.
3. Make other changes as
necessary and select OK.
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205/305 Owner’s Manual 37
NAVIGATION
When you want to go to a
location, select Find from the
Navigation menu. You can view
a list of your saved locations
organized by name or by distance
from your current location.
To find and go to a location:
1. Press mode to access
the Main Menu. Select
Navigation > Find.
2. Select List All (shows all
locations) or Nearest (shows
locations near your current
location). Then use the
arrows to find a location in
the list, and press enter to
select.
3. Select Go To. Follow the line
on the map to the location.
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NAVIGATION
When you are going to a location,
the Map and Compass pages are
added automatically. Press mode
to view these pages. On the
Compass page, the arrow points
toward the location. Go in the
direction of the arrow to reach the
location. The Compass page also
shows the distance and time left
until you reach the next point.
Compass
To stop going to a location:
Press mode to access the Main
Menu. Then select Navigation >
Stop Go To.
To edit or delete a location:
1. Press mode to access the
Main Menu. Then select
Navigation > Find > List All
or Nearest.
2. Select the location you want
to edit.
3. Change the name and symbol
as necessary. To delete the
location, select Delete.
To delete all locations:
Press mode. Select
Navigation > Find >
Delete All > Yes.
Forerunner
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205/305 Owner’s Manual 39
NAVIGATION
Back to Start
If you want to return to the
starting point of your run, the
Forerunner can take you back
along the exact path you traveled
using Back to Start.
Follow the line back to
your starting point.
Back to Start directs you back
along the path of your most
recent run.
To go back to your starting
point:
Press mode to access the
Main Menu. Then select
Navigation > Back to Start.
A line appears on the map from
your current location to your
starting point. Follow the line to
your starting point.
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NAVIGATION
Creating and Using
Routes
A route is a straight line path
between two or more points
on the map. After you create
locations, you can use them to
build routes involving a few points
or many points. Then you can
save the routes and use them
any time.
To create a route:
1. Press mode to access the
Main Menu. Then select
Navigation > Routes.
2. Select New.
3. Select the dotted line and
press enter to add a location
to your route.
4. Select a location from the list,
and then select Use.
Select the dotted line
to add another point.
5. Repeat steps 3 and 4 to add
more locations to your route.
6. When you are finished adding
locations, select Navigate.
Your route appears on the
map as a dark line connecting
each location.
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205/305 Owner’s Manual 41
NAVIGATION
To use a saved route:
1. Press mode to access the
Main Menu. Then select
Navigation > Routes.
2. Select the route you want to
follow. Then select Navigate.
To stop navigating a route:
1. Press mode to access the
Main Menu.
2. Select Navigation > Stop
Route.
To edit or delete a route:
1. Press mode to access the
Main Menu. Then select
Navigation > Routes.
2. Select the route you want
to edit. Then select
Edit.
To delete the route, select
Delete.
3. Select a point to edit:
Review—view it on the map.
Insert—insert a point before
this point.
Remove—remove it from the
route.
Change—replace it with
another point.
Move—move it to another
place in the route.
4. When you are finished making
changes, select Navigate or
press mode to exit.
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NAVIGATION
Viewing GPS
Information
The Satellite page displays
information about the GPS
signals the Forerunner is
currently receiving. From the
Main Menu, select Navigation
> Satellite to view the Satellite
page.
Each GPS satellite in space has
a specific number. The numbers
of several GPS satellites appear
on the circular graphic. The
number corresponds to the
current position of that satellite in
space. Each highlighted number
on the graphic corresponds
to a satellite from which the
Forerunner is currently receiving
signals.
Press the arrows on the
Satellite page to view satellite
strength information. The black
bars represent the strength of
each satellite signal received (the
number of the satellite appears
below each bar).
Forerunner
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205/305 Owner’s Manual 43
SETTINGS
SETTINGS
You can customize general
Forerunner settings and
individual sport settings, such as
heart rate zones and pace/speed
zones.
General Settings
To change general settings,
select Settings > General from
the Main Menu.
Changing Data Fields
You can change the data fields
on any of the Timer pages: Main
1, Main 2, and Running/Biking/
Other. Changes you make to the
sport-specific pages appear only
in that sport mode. For example,
if you change the Biking page,
those data fields appear only in
Biking mode.
See page 54 for a list of available
data fields.
To change data fields:
1. From the Main Menu, select
Settings > General > Data
Fields.
2. Select the page you want to
change.
3. Select the number of data
fields you want to see on this
page.
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SETTINGS
4. Use the arrows and
enter to change the data
fields. Press mode to exit.
5. Repeat for each page you
want to customize.
Changing System Settings
System settings
To turn GPS off for indoor use:
1. From the Main Menu, select
Settings > General >
System.
2. Press enter and select GPS
Off from the GPS menu.
NOTE: When GPS is off, pace and
distance data are not available. The
next time you turn on the Forerunner,
it will search for satellite signals
again.
To change the text language:
1. From the Main Menu, select
Settings > General >
System.
2. Select a language in the Text
Language field.
To turn sounds on or off:
1. From the Main Menu, select
Settings > General >
System.
2. Select an option in the Tones
field to turn the Forerunner
sounds on or off.
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205/305 Owner’s Manual 45
SETTINGS
Changing Your User
Profile
See page 8 to change your user
profile.
Changing Display Settings
To change backlight and
contrast:
1. From the Main Menu, select
Settings > General >
Display.
2. Select the amount of time the
backlight stays on and the
amount of screen contrast.
Press power once to turn on
the backlight. After the backlight
shuts off automatically, press any
key to turn the backlight on again.
To turn the backlight off manually,
press power.
TIP: Use a short backlight timeout
setting to conserve battery power.
To scroll through Timer pages
automatically:
Select On in the Auto Scroll
Timer Pages field.
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SETTINGS
Data Recording
Data recording controls how the
Forerunner records detailed data
for your runs or other activities.
By default, the Forerunner uses
Smart Recording to record your
movements and create detailed
history. Smart Recording picks
up key points where you change
direction, speed, or heart rate.
You can also record data every
second. Doing so creates the
most accurate record possible of
your activity. However, with this
setting, the Forerunner can only
record up to 3.5 hours of detailed
data.
NOTE: When the history is full,
older history data is overwritten
automatically. Be sure to transfer
history to Garmin Training Center
often.
To change data recording:
1. From the Main Menu, select
Settings > General > Data
Recording.
2. In the Record Data Points
field, select Every Second or
Smart Recording.
Adding Accessories
The Forerunner 305 has two
possible accessories: a heart rate
monitor and an optional Garmin
cadence sensor. You can enable
these accessories from this menu
or restart scanning if you are
having trouble receiving data.
To scan for accessories:
1. From the Main Menu, select
Settings > General >
Accessories.
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SETTINGS
2. Select an accessory; then
select Yes to turn on scanning
for that accessory. To restart
scanning for an accessory,
select Restart Scan.
See pages 59-60 for more
information on pairing and
troubleshooting accessories.
Changing Map Settings
To change map settings:
1. From the Main Menu, select
Settings > General > Map.
2. To change the orientation of
the map, press enter and
select an option.
North Up—orients the map
with North at the top of the
screen.
Track Up—orients the map
with your direction of travel at
the top of the screen.
3. To show/hide waypoints on
the map, select Show or Hide
in the User Locations field.
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SETTINGS
4. To view the Map page as part
of the page loop, select Yes in
the Show Map field.
TIP: The map is automatically visible
when you go to a location or navigate
a route or course.
Changing Units
To change units of measure:
1. From the Main Menu, select
Settings > General > Units.
2. Select units of measure for
distance, elevation, and heart
rate.
Changing Time Settings
To change time settings:
1. From the Main Menu, select
Settings > General > Time.
2. Select a time format and time
zone and enable or disable
daylight saving time.
About Forerunner
From the Main Menu, select
Settings > General > About
Forerunner to view your software
version, GPS version, and
unit ID.
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205/305 Owner’s Manual 49
SETTINGS
Changing Sport
Settings
For each sport, you can change
speed units and enter extra gear
or bike weight, which affects how
calories are calculated. You can
also enter speed zones and heart
rate zones for each sport.
To set extra weight for a sport:
1. From the Main Menu, select
Settings.
2. Select a sport, and then
select Extra Weight.
3. Enter the amount of extra
weight you are carrying.
To change speed units for a
sport:
1. From the Main Menu, select
Settings.
2. Select a sport to change
units. Then select Speed
Units.
3. Select Pace or Speed.
4. If you selected Pace, select
the amount of pace smoothing
you want to use.
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SETTINGS
Pace smoothing averages your
current pace over a certain
amount of time to avoid errors in
GPS position and speed due to
varying satellite signal reception.
When you turn on or increase
pace smoothing, the pace shown
on your Forerunner is steadier
(fewer large jumps). To use pace
smoothing, you must set your
speed units to pace.
NOTE: Pace smoothing affects
your displayed pace and the timing
of pace alerts and Auto Pause;
however, it does not affect the data
stored in History.
Setting Pace/Speed
Zones
For each sport, your Forerunner
contains ten pace/speed zones,
ranging from very slow to
maximum speed. The values
for these pace/speed zones are
entered by default and may not
match your personal abilities.
After you enter appropriate
values, you can use these zones
to set your pace/speed alerts or
use them as targets in advanced
workouts.
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SETTINGS
To change your pace/speed
zones:
1. From the Main Menu, select
Settings.
2. Select a sport, and then
select Pace/Speed Zones.
3. Select the zone you want to
change. Enter a minimum and
maximum pace/speed for that
zone.
4. Repeat step 3 for each zone
you want to change.
Setting Heart Rate
Zones
NOTE: Heart rate zones are a
feature of the Forerunner 305 only.
A heart rate zone is simply a
certain range of beats per minute.
Heart rate zones are generally
based on a percentage of your
maximum heart rate and are
numbered from 1 to 5 based on
intensity (1–lowest, 5–highest).
If you know your maximum heart
rate, you can enter it and allow
the Forerunner to calculate your
heart rate zones automatically.
You can also enter your heart
rate zones manually. You can set
heart rate zones for each sport.
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SETTINGS
To base heart rate zones on
your maximum heart rate:
1. From the Main Menu, select
Settings.
2. Select a sport to set heart
rate zones. Then select HR
Zones.
3. Select the Zones field. Then
select Based on Max.
4. Select the Max field and enter
your maximum heart rate. The
Forerunner calculates your
heart rate zones automatically
based on your maximum
heart rate.
To change your heart rate
zones manually:
1. From the Main Menu, select
Settings.
2. Select a sport to set heart
rate zones. Then select HR
Zones.
3. Select the Zones field. Then
select Custom.
4. In any heart rate zone,
select a heart rate value you
want to change and enter a
new value. Repeat for each
heart rate value you want to
change.
Forerunner
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205/305 Owner’s Manual 53
APPENDIX
APPENDIX
Be sure to read the Warnings and
Cautions on pages 67-68 to learn
to use your Forerunner safely and
responsibly.
Cleaning and Care
Clean the Forerunner and
the heart rate monitor using
a cloth dampened with a mild
detergent solution. Wipe dry.
Avoid chemical cleaners and
solvents that may damage plastic
components.
Do not store the Forerunner
where prolonged exposure to
temperature extremes may occur
(such as in the trunk of a car), as
permanent damage may result.
User information, such as history,
locations, and tracks, is retained
indefinitely in the unit’s memory
without the need for external
power. Back up important user
data by downloading it to Garmin
Training Center on your personal
computer. See page 61 to load
Garmin Training Center.
Water Immersion
The Forerunner is waterproof to
IEC Standard 60529 IPX7. It can
withstand immersion in 1 meter of
water for 30 minutes. Prolonged
submersion can cause damage
to the unit. After submersion, be
certain to wipe dry and air dry the
unit before using or charging.
NOTE: This product is not intended
to be used while swimming.
54 Forerunner
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APPENDIX
Replacing the Heart Rate
Monitor Battery
The heart rate monitor contains
a user replaceable CR2032
battery. Be sure to dispose of old
batteries properly. To replace the
battery, locate the circular battery
cover on the back of the heart
rate monitor. Use a coin to twist
the cover counter-clockwise until
it is loose enough to remove.
Remove the cover and replace
the battery. Be careful not to
damage or lose the o-ring gasket
on the cover. Then use a coin to
twist the cover back into place.
Data Fields
The data fields available on any
Timer page change based on
the accessories you own and the
speed units you have selected
for a sport. Starred (*) data fields
are available with the Forerunner
305 only.
Cadence*—revolutions of the
crank arm per minute.
Cadence – Avg*—average
cadence for the duration of your
current ride.
Cadence – Lap*—average
cadence for current lap.
Calories—amount of calories
burned.
Date—current day, month, and
year.
Distance—distance traveled on
current run.
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APPENDIX
Dist – Lap—distance traveled in
current lap.
Dist – Last Lap—distance of last
completed lap.
Dist – Paused—distance
covered while timer is in Auto
Pause.
Elevation—distance above/
below sea level.
GPS Accuracy
—margin of
error for your exact location (for
example, +/- 19 ft).
Grade—calculation of rise over
run. For example, if for every 10
feet you climb (elevation) you
travel 200 feet (distance), your
grade is 5%.
Heading—current direction you
are traveling.
Heart Rate*—heartbeats per
minute (bpm).
Heart Rate – Avg*—average
heart rate for the duration of your
current run.
Heart Rate – Lap*—average
heart rate in current lap.
Heart Rate Zone*—current
heart rate zone (1–5). The
default zones are based on your
maximum heart rate and user
profile.
Laps—number of laps
completed.
Pace—current pace.
Pace – Average—average pace
over the duration of your current
run.
Pace – Best—best pace
achieved during current run.
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APPENDIX
Pace – Lap—average pace
during current lap.
Pace – Last Lap—average pace
during last completed lap.
Pace Zone—current range of
pace based on your pace zone
settings. See page 50.
Speed—current speed.
Speed – Avg
—average speed
for the duration of your current
activity.
Speed – Lap—average speed
during current lap.
Speed – Last Lap—average
speed of last completed lap
Speed – Max—top speed
achieved during current activity.
Speed Zone—current range of
speed based on your speed zone
settings. See page 50.
Sunrise—approximate time
of sunrise based on your GPS
position.
Sunset—time of sunset based on
your GPS position.
Time
—stopwatch time.
Time – Avg Lap—average time
to complete each lap so far.
Time – Lap—amount of time in
current lap.
Time – Last Lap—length of time
to complete the last full lap.
Time – Paused
—time elapsed
while timer in Auto Pause.
Time of Day—current time of day
based on your time settings.
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205/305 Owner’s Manual 57
APPENDIX
Heart Rate Information
Many runners and other athletes
are using heart rate zones to
measure and increase their
cardiovascular strength and
improve their level of fitness.
What are heart rate zones?
A heart rate zone is simply a
range of heartbeats per minute
(bpm). The five commonly
accepted heart rate zones are
numbered from 1–5 according to
increasing intensity. Generally,
heart rate zones are calculated
based on percentages of your
maximum heart rate. See the
next page to learn some of the
effects of exercise as your heart
rate reaches each of these
zones.
How do heart rate zones
affect your fitness goals?
Knowing your heart rate
zones can help you measure
and improve your fitness by
understanding and applying these
principles:
Your heart rate is a good
measure of exercise
intensity.
Training in certain heart
rate zones can help you
improve cardiovascular
capacity and strength.
Knowing your heart rate
zones can prevent you
from overtraining and
decrease your risk of injury.
See the next page to learn about
the benefits of training in each
heart rate zone.
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APPENDIX
How can I determine my
heart rate zones?
If you know your maximum heart
rate, you can enter it and allow
the Forerunner to calculate your
heart rate zones based on the
percentages shown below. For
more information on setting your
heart rate zones, see page 51.
Zone
% of Max.
Heart Rate
Perceived Exertion Benefits
1 50%–60%
Relaxed, easy pace;
rhythmic breathing
Beginning-level aerobic
training; reduces stress
2 60%–70%
Pace comfortable;
slightly deeper breathing,
conversation possible
Basic cardiovascular
training; good recovery
pace
3 70%–80%
Pace moderate;
more difficult to hold
conversation
Improved aerobic
capacity; optimal
cardiovascular training
4 80%–90%
Pace fast and a bit
uncomfortable;
breathing forceful
Improved anaerobic
capacity and threshold;
improved speed
5
90%–
100%
Pace a sprinting effort,
unsustainable for long period
of time; labored breathing
Anaerobic and
muscular endurance;
increased power
Forerunner
®
205/305 Owner’s Manual 59
APPENDIX
About Pairing
Pairing is the process of matching
sensors, like your heart rate
monitor, with your Forerunner
305. This process occurs
automatically when you turn on
the Forerunner and only takes a
few seconds when the sensors
are on and functioning correctly.
Once paired, your Forerunner
will only receive data from your
sensor. Upon power up, the
Forerunner will automatically
scan for the sensors you
have enabled (see “Adding
Accessories,” page 46). Each
sensor has a unique ID. The
Forerunner learns and saves this
unique ID while pairing the first
time. The next time you turn on
the Forerunner, it will only pair
with the unique sensor ID. If the
Forerunner does not find the
sensor, you should restart the
scan to find your sensor ID.
Interference
Strong electromagnetic fields
can interfere with your heart rate
monitor and cause your heart
rate to appear unusually high,
freeze, or disappear. Common
sources of interference include
high voltage power lines, electric
motors, computers, televisions,
and mobile phones. After you
move away from the source of
interference, your heart rate
reading should return to normal.
60 Forerunner
®
205/305 Owner’s Manual
APPENDIX
Heart Rate Monitor
Troubleshooting
If you have trouble pairing with
the heart rate monitor, or if your
heart rate readings are erratic, try
the following suggestions.
Position the Forerunner within
3 meters of the sensor while
pairing.
Stay far away from any other
sensors while pairing.
Move away from sources of
interference (see the previous
page).
Restart scan if your
Forerunner appears to be
paired with another sensor
(see page 46).
Make sure scanning for the
heart rate monitor is enabled
(see page 46).
Replace the battery.
Clean the sensors. Dirt and
sweat build-up on the sensors
can weaken signals.
Reapply moisture. Use
electrode gel, water, or saliva.
Make sure the heart rate
monitor is snug against your
body. If you have trouble with
erratic readings, position the
transmitter on your back.
Wear a cotton shirt, or wet
your shirt. Synthetic fabrics
that rub or flap against the
heart rate monitor can create
static electricity that interferes
with heart rate signals.
Forerunner
®
205/305 Owner’s Manual 61
APPENDIX
Garmin Training
Center
The Garmin Training Center
software is included in the
Forerunner product box. Locate
the Garmin Training Center and
use it to install the software on
your personal computer.
Garmin Training Center offers
workout analysis tools and allows
you to create and schedule
custom courses and workouts
and transfer them to the
Forerunner.
To install Garmin Training
Center:
1. Insert the Garmin Training
Center disk into your
computer’s disk drive.
If the welcome screen does
not appear, click
Start and
then Run….
Type in the drive letter of your
disk drive followed by “setup”
(example: D:\setup). Then
press Enter.
2. When the welcome
screen appears, follow the
instructions on the screen
to install Garmin Training
Center.
Use the USB cable from the
product box to connect your
Forerunner to your computer.
Then open Garmin Training
Center. For help using Garmin
Training Center, click the Help
menu and select Contents, or
press F1 on your keyboard.
62 Forerunner
®
205/305 Owner’s Manual
APPENDIX
Specifications
GPS: High sensitivity SiRFstarIII
architecture
Acquisition Time:
Hot Start: < 1 second
Warm Start: < 38 seconds
Cold Start: < 45 seconds
Update Rate: 1/second, continuous
GPS Position Accuracy*:
< 10 meters 50%, typical
GPS Velocity Accuracy*
:
< 0.05 m/s
*
Accuracy depends on view of the sky.
99%–clear view; 95%–typical.
Dynamics: Performs to specifications
to 6 g’s
Operating Temperature Range
:
-4°F to 140°F (-20°C to 60°C)
Weight: 77 g (2.72 oz)
Display: 33 x 20.3 mm (1.3” x 0.8”)
Physical size: 53.3 x 17.8 x 68.6 mm
(2.1” x 0.7” x 2.7”)
Lap memory: 1,000 laps
Battery: Rechargeable internal
lithium-ion
Battery Life: 10 hours (typical use)
Water resistance
: IEC 60529 IPX7
(submersible to one meter for up to 30
minutes).
Note: This product is not intended to be used
while swimming.
Heart rate monitor:
Physical size: 34.8 x 3.56 x 1.27 cm
(13.7” x 1.4” x 0.5” )
Transmission range: approximately
3 m (9.8 ft)
Battery: CR2032 (3 volts)
Battery Life: 3 years (1 hour per day)
Weight
: 21 g (0.74 oz)
Accuracy may be degraded by poor
sensor contact, electrical interference,
and receiver distance from transmitter.
Forerunner
®
205/305 Owner’s Manual 63
APPENDIX
Limited Warranty
This Garmin product is warranted to
be free from defects in materials or
workmanship for one year from the date
of purchase. Within this period, Garmin
will at its sole option repair or replace
any components that fail in normal
use. Such repairs or replacement will
be made at no charge to the customer
for parts or labor, provided that the
customer shall be responsible for any
transportation cost. This warranty does
not cover failures due to abuse, misuse,
accident or unauthorized alteration or
repairs.
THE WARRANTIES AND REMEDIES
CONTAINED HEREIN ARE
EXCLUSIVE AND IN LIEU OF ALL
OTHER WARRANTIES EXPRESS
OR IMPLIED OR STATUTORY,
INCLUDING ANY LIABILITY ARISING
UNDER ANY WARRANTY OF
MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE,
STATUTORY OR OTHERWISE. THIS
WARRANTY GIVES YOU SPECIFIC
LEGAL RIGHTS, WHICH MAY VARY
FROM STATE TO STATE.
IN NO EVENT SHALL GARMIN BE
LIABLE FOR ANY INCIDENTAL,
SPECIAL, INDIRECT OR
CONSEQUENTIAL DAMAGES,
WHETHER RESULTING FROM THE
USE, MISUSE, OR INABILITY TO USE
THIS PRODUCT OR FROM DEFECTS
IN THE PRODUCT. Some states do
not allow the exclusion of incidental or
consequential damages, so the above
limitations may not apply to you.
Garmin retains the exclusive right to
repair or replace the unit or software
or offer a full refund of the purchase
price at its sole discretion. SUCH
REMEDY SHALL BE YOUR SOLE
AND EXCLUSIVE REMEDY FOR ANY
BREACH OF WARRANTY.
To obtain warranty service, contact your
local Garmin authorized dealer or call
Garmin Product Support for shipping
instructions and an RMA tracking
number. The unit should be securely
64 Forerunner
®
205/305 Owner’s Manual
APPENDIX
packed with the tracking number
clearly written on the outside of the
package. The unit should then be sent,
freight charges prepaid, to any Garmin
warranty service station. A copy of the
original sales receipt is required as the
proof of purchase for warranty repairs.
Garmin International, Inc.
Tel. 913/397.8200
Fax. 913/397.8282
Garmin (Europe) Ltd.
Tel. 44/0870.8501241
Fax 44/0870.8501251
Online Auction Purchases: Products
sold through online auctions are not
eligible for rebates or other special
offers from Garmin. Online auction
confirmations are not accepted for
warranty verification. To obtain warranty
service, an original or copy of the
sales receipt from the original retailer
is required. Garmin will not replace
missing components from any package
purchased through an online auction.
International Purchases: A separate
warranty is provided by international
distributors for units purchased outside
the United States. This warranty
is provided by the local in-country
distributor and this distributor provides
local service for your unit. Distributor
warranties are only valid in the area of
intended distribution. Units purchased
in the United States or Canada must be
returned to the Garmin service center in
the United Kingdom, the United States,
Canada, or Taiwan for service.
The unit has no user-serviceable parts.
Should you ever encounter a problem
with your unit, please take it to an
authorized Garmin dealer for repairs.
The unit is fastened shut with screws.
Any attempt to open the case to change
or modify the unit in any way will
void your warranty and may result in
permanent damage to the equipment.
Forerunner
®
205/305 Owner’s Manual 65
APPENDIX
FCC Compliance
The unit complies with Part 15 of the
FCC interference limits for Class B
digital devices FOR HOME OR OFFICE
USE. These limits are designed to
provide more reasonable protection
against harmful interference in a
residential installation, and are more
stringent than “outdoor” requirements.
Operation of this device is subject to
the following conditions: (1) This device
may not cause harmful interference,
and (2) this device must accept any
interference received, including
interference that may cause undesired
operation.
This equipment generates, uses, and
can radiate radio frequency energy
and may cause harmful interference to
radio communications if not installed
and used in accordance with the
instructions. However, there is no
guarantee that interference will not
occur in a particular installation. If
this equipment does cause harmful
interference to radio or television
reception, which can be determined
by turning the equipment off and on,
the user is encouraged to try to correct
the interference by one of the following
measures:
Reorient or relocate the receiving
antenna.
Increase the separation between the
equipment and the receiver.
Connect the equipment into an
outlet on a circuit different from that
to which the receiver is connected.
Consult the dealer or an
experienced radio/TV technician for
help.
The unit does not contain any user-
serviceable parts. Repairs should only
be made by an authorized Garmin
service center. Unauthorized repairs or
modifications could result in permanent
damage to the equipment, and void
your warranty and your authority to
operate this device under Part 15
regulations.
66 Forerunner
®
205/305 Owner’s Manual
APPENDIX
Software License
Agreement
BY USING THE FORERUNNER
205/305, YOU AGREE TO BE
BOUND BY THE TERMS AND
CONDITIONS OF THE FOLLOWING
SOFTWARE LICENSE AGREEMENT.
PLEASE READ THIS AGREEMENT
CAREFULLY.
Garmin grants you a limited license
to use the software embedded in
this device (the “Software”) in binary
executable form in the normal operation
of the product. Title, ownership rights,
and intellectual property rights in and to
the Software remain with Garmin.
You acknowledge that the Software
is the property of Garmin and is
protected under the United States
of America copyright laws and
international copyright treaties. You
further acknowledge that the structure,
organization, and code of the Software
are valuable trade secrets of Garmin
and that the Software in source
code form remains a valuable trade
secret of Garmin. You agree not to
decompile, disassemble, modify,
reverse assemble, reverse engineer,
or reduce to human readable form the
Software or any part thereof or create
any derivative works based on the
Software. You agree not to export or
re-export the Software to any country
in violation of the export control laws of
the United States of America.
CE Compliance
Hereby, Garmin International
declares that this GPS equipment
is in compliance with the essential
requirements and other relevant
provisions of Directive 1999/5/EC. To
view the full Declaration of Conformity,
visit the Garmin Web site:
www
.garmin.com/products/forerunner305
or www.garmin.com/products/
forerunner205. Click Manuals and then
select the Declaration of Conformity.
Forerunner
®
205/305 Owner’s Manual 67
APPENDIX
Warning
Failure to avoid the following
potentially hazardous situations
could result in an accident or
collision resulting in death or
serious injury.
When navigating, carefully compare
information displayed on the
Forerunner to all available navigation
sources, including information
from visual sightings and maps.
For safety, always resolve any
discrepancies or questions before
continuing navigation.
The Forerunner contains a non-user
replaceable, rechargeable lithium-
ion battery. The heart rate monitor
contains a replaceable CR2032
battery. The battery may present
a risk of fire or chemical burn if
mistreated.
Do not recharge out of the unit,
disassemble, heat above 140°F
(60°C), or incinerate.
Keep used battery away from
children.
Dispose of used battery or unit
properly. Contact your local
waste disposal department for
information on properly disposing
of lithium-ion batteries.
The Forerunner has no user-
serviceable parts. Should you ever
encounter a problem with your
unit, please take it to an authorized
Garmin dealer for repairs.
Always consult your physician before
beginning or modifying any exercise
program. If you have a pacemaker
or other implanted electronic device,
consult your physician before using
a heart rate monitor.
68 Forerunner
®
205/305 Owner’s Manual
APPENDIX
Caution
Failure to avoid the following
potentially hazardous situations
may result in injury or property
damage.
Use the Forerunner only as a
navigational aid. Do not attempt to
use the Forerunner for any purpose
requiring precise measurement
of direction, distance, location, or
topography. This product should
not be used to determine ground
proximity for aircraft navigation.
The Global Positioning System
(GPS) is operated by the United
States government, which is solely
responsible for its accuracy and
maintenance. The government’s
system is subject to changes
which could affect the accuracy
and performance of all GPS
equipment, including the Forerunner.
Although the Forerunner is a
precision navigation device, any
navigation device can be misused
or misinterpreted and, therefore,
become unsafe.
The Forerunner and heart rate
monitor are consumer devices, not
medical devices, and could suffer
from interference from external
electrical sources. The heart rate
readings are for reference only and
no responsibility can be accepted for
the consequences of any erroneous
readings.
WARNING: This product, its packaging, and its components contain chemicals
known to the State of California to cause cancer, birth defects, or reproductive harm.
This Notice is being provided in accordance with California’s Proposition 65. If you
have any questions or would like additional information, please refer to our Web site
at www.garmin.com/prop65.
Forerunner
®
205/305 Owner’s Manual 69
INDEX
INDEX
A
accessories
adding 46
acquiring satellite
signals 2
advanced workouts
and Garmin
Training
Center 19
creating 19
editing 23
starting 21
alerts 9
cadence 12
heart rate 11
pace 10
speed 10
time and distance 9
arrow buttons 6
Auto Lap 13
auto multi-sport 29
Auto Pause 12
auto scroll timer
pages 45
B
backlight 6, 45
battery
charging 1
replacing in heart
rate monitor 54
battery icon 7
buttons 6
C
cadence alert 12
cleaning and care 53
compass 38
contact Garmin ii
contrast, adjusting 45
courses 24–25
customizing timer
pages 43
D
data fields 54
changing 43
data recording 46
daylight saving time 48
distance alert 9
E
enter button 6
extending the wrist
strap 5
extra weight,
adding 49
G
Garmin Training Center
and advanced
workouts 19
and courses 24
installing 61
go to location 37
GPS
about 42
acquiring signals 2
turning on and
off 44
GPS antenna 2
H
heart rate alert 11
heart rate icon 4, 7
heart rate monitor
interference 59
70 Forerunner
®
205/305 Owner’s Manual
INDEX
pairing 4, 59
restart scan 46
troubleshooting 60
wearing 3
heart rate zones
about 57
and alerts 11
setting 51
history 31
deleting 34
totals 33
viewing 32
I
indoor use 44
interval workouts 17
L
language, changing 44
lap button 6
locations
deleting 38
editing 38
finding 37
marking 36
M
map 35
adding the Map
page 35
mode button 6
multi-sport
workouts 28–30
P
pace alert 10
pace smoothing 50
power button 6
product registration ii
R
reset button 6
rest time/rest
distance 12
routes 40–41
S
Satellite page 42
serial number ii
settings
general 43
sport-specific 49
sounds, turning
on/off 44
specifications 62
speed alert 10
sports, changing 7
start/stop button 6
T
time alert 9
time zone,
changing 48
troubleshooting 60
U
units of measure,
changing 48
USB 1, 61
user profile, setting 8
V
Virtual Partner 15,
16, 24
W
water immersion 53
wrist strap, extending 5
For the latest free software updates (excluding map data)
throughout the life of your Garmin products, visit the Garmin
Web site at www.garmin.com.
© 2006 Garmin Ltd. or its subsidiaries
Garmin International, Inc.
1200 East 151
st
Street, Olathe, Kansas 66062, U.S.A.
Garmin (Europe) Ltd.
Unit 5, The Quadrangle, Abbey Park Industrial Estate,
Romsey, SO51 9DL, U.K.
Garmin Corporation
No. 68, Jangshu 2
nd
Road, Shijr, Taipei County, Taiwan
www.garmin.com
Part Number 190-00581-00 Rev.
C
55

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2

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Garmin-Forerunner-305
  • als ik een rondje gelopen heb wil ik dit opslaan zonder eerst op de pc te plaatsen, zodat ik een dag later weer kan starten Gesteld op 11-9-2022 om 18:30

    Reageer op deze vraag Misbruik melden
    • sim na het rondje stop je met tijdregistratie, volgende keer start je gewoon weer en tijdregistratie gaat verder. Geantwoord op 13-9-2022 om 13:33

      Waardeer dit antwoord Misbruik melden
  • Forerunner hartslagband doet niets meer, welke band van evt concurrent koppelt aan dit horloge?
    Wie heeft er nog een hartslkag band liggen welke ik over kan nemen??
    Gr/ Dick Sanders Gesteld op 18-11-2020 om 19:03

    Reageer op deze vraag Misbruik melden
  • Mijn Garmin Forerunner 305 kan ik onder Windows 10 niet meer toevoegen bij Garmin Express.
    De reden zou blijkbaar de driver zijn. Is er hier een nieuwe driver voor ?
    Bij Windows 7 kon ik mijn toestel wel toevoegen. Gesteld op 22-7-2019 om 20:35

    Reageer op deze vraag Misbruik melden
  • in werking stellen hartslagmeter band forerunner 305 Gesteld op 2-11-2018 om 15:20

    Reageer op deze vraag Misbruik melden
    • Als uw hartslagmeter niet start, kan het zijn dat de batterij van uw riem op is. Als je het batterijtje gewoon vervangt zou de hartslagmeter van uw Forerunner 305 automatisch moeten starten. Succes. Geantwoord op 2-11-2018 om 15:35

      Waardeer dit antwoord Misbruik melden
  • Heb mijn Forerunner 305 al een jaar of 4 en ben er zeer tevreden over.
    Maar enkele dagen terug is mijn hartslagmeter tilt geslagen;
    Momenteel geeft hij 242 b/m aan hoewel mijn hartslag rond de 76 zit.
    Wat kan de reden zijn.
    Heeft iemand misschien ook al zoiets voorgehad?

    Groetjes,
    Jos Gesteld op 30-6-2017 om 16:10

    Reageer op deze vraag Misbruik melden
  • goedendag ik heb een probleem met mijn forrunner 305.
    heb dit weekend 37 km gewandeld, uitgezet met de site afstandmeten , ik loop best vlak gemiddeld 6 km per uur. over deze afstand heb ik precies 6 uur gedaan, maar mn klokje geeft 21,47 km aan heeft iemand een idee wat er aan de hand kan zijn ?
    heb hem vorige week nog geriset. Gesteld op 6-2-2017 om 09:14

    Reageer op deze vraag Misbruik melden
6
12
  • Kan zijn dat de 305 een andere sensor heeft opgepikt en de jouw is 'vergeten'.
    Opnieuw de sensor scannen hielp bij mij. Op pag 42/43 vind je hoe dat moet. Klik op deze LINK Geantwoord op 2-2-2016 om 14:35

    Waardeer dit antwoord (1) Misbruik melden
  • Ben in het bezit van een Garmin 305. Apparaat communiceerde wel met mijn XP computer maar niet met mijn Windows 7 versie. Van alles geprobeerd, maar lukt helaas niet om de Garmin met de pc te laten communiceren. Ik ben op zoek naar een download van de driver voor Windows 7. Kunt u mij helpen? Gesteld op 11-10-2015 om 20:36

    Reageer op deze vraag Misbruik melden
    • Da's raar. Ik werk altijd met de mygarmin-app. Maakt niet uit, windows-xp, windows-7, windows-8, windows-10.

      werkt die app ok niet? Geantwoord op 11-10-2015 om 20:39

      Waardeer dit antwoord (1) Misbruik melden
  • de hartslagmeter band is niet verbonden met het Garmin 305. Moet ik hem resetten? Of kan ik hem opnieuw connect maken met horloge
    Gesteld op 4-8-2015 om 20:03

    Reageer op deze vraag Misbruik melden
    • e hartslagmeter band is niet verbonden met het Garmin 305. Moet ik hem resetten? Of kan ik hem opnieuw connect maken met horloge
      Geantwoord op 4-11-2015 om 22:02

      Waardeer dit antwoord (3) Misbruik melden
  • Geachte lezers, Mijn Forerunner 305 kan niet meer uitgezet worden, Drukknopjes reageren niet meer, ook als hij volledig opgeladen is. Hij kan wel gereset worden, maar begint dan weer direct met het zoeken naar satellieten. Mijn forerunner is inmiddels 5 jaar oud en tot en met nu altijd prima gefunctioneerd, maar opeens kan ik er niets meer mee, Weet iemand hier een antwoord op of is hij gewoon verouderd?

    Gesteld op 10-6-2015 om 16:48

    Reageer op deze vraag Misbruik melden
  • mijn garmin 305 meldt "tijdens het ontvangen van koersen heeft zich een probleem voorgedaan". daardoor? kan ik ook geen koersen laden op het horloge.
    Vroeger ging het een enkele keer wel goed, maar de laatste tijd niet meer. Ik heb het horloge volledig opgeladen, de gegevens verwijderd en een harde reset gedaan, maar niets helpt. Gesteld op 6-1-2015 om 16:46

    Reageer op deze vraag Misbruik melden
    • Eenvoudig op te lossen door een harde reset.
      1) uitzetten
      2) mode en power tesamen indrukken.
      3) wilt u echt alles wissen: YES
      4) instellingen weer eropzetten
      5) koersen laden weer zoals tevoren... Geantwoord op 29-6-2015 om 16:32

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  • Mijn carminforerunner305 gaat onder het hardlopen steeds uit hij is 4 jaar oud. Gesteld op 29-12-2014 om 12:57

    Reageer op deze vraag Misbruik melden
    • Deed de mijne ook vorig jaar. Heb er een nieuwe batterij in laten zetten en hij werkt weer perfekt.
      info@fixgps.nl Kost een paar tientjes maar is goedkoper dan nieuw kopen, Bonne Geantwoord op 31-1-2015 om 11:34

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