Order Numbers
F4090 - F4091 - F4092
F4095 - F4096 - F4097
7.1 Parameter menu (PARA)
The Parameter menu,like all the other
menus, is incorporated in the endless
rotation loop of the Select menu level.
All the basic (global) settings are
adjusted in this menu.
Paradoxically the last menu point is
described here first; there are good
ergonomic reasons for this.
If you rotate the 3-D hotkey to the left, then "PARA" is the first
menu you see,and it is also the first one you need in order to set up
the global functions for a particular model.
When you are using the system,however,the most common menu
you need will be "Model", which is also the first one you reach
when you rotate the hotkey to the right.
This eliminates the time-consuming business of leafing through
unnecessary menus.
The Setup level also operates using this logic;if you jump to the left
with the "H" button, a mixer function is switched on or off. If you
jump to the right with the "S" button you jump to the percentage
value setting in the menu,which is the most frequently used option
when setting up a new model.
Move to the Setup menu level "PARA" via the Select menu, as
shown in Section 7.
The setup menu "PARA" contains 10 sub-menus which are
explained in the following section.
The ten options are arranged in a loop,and within this loop you can
always move forward with the "S" button, and back with the "H"
button,in each case giving a short press.
A longer press (about 1 second) on the "H" button takes you back to
one level higher in the menu system.
7.1.1 Modulation setting (MODU)
This function is required in order to set the desired modulation,i.e.
PCM or PPM (FM).If you are using an FM receiver,you must set PPM
mode (P) on the transmitter.
A PCM receiver requires PCM mode (C).
In PCM mode you can only use genuine robbe-Futaba and
Futaba receivers.Do not expect other makes of PCM receiver to
be compatible.
PCM modulation differs in practice as follows:when an FM system is
operated at the extreme limit of range,or when motor interference
occurs, the servos tend to jitter,and PCM modulation suppresses
this effect.The receiver achieves this by storing the signals briefly.If
invalid or incorrect signals are picked up by the receiver, it
continues to give out the stored signals until it picks up correct
signals from the transmitter again.
See also F/S (Fail-Safe),Section 7.16.
We recommend that you use a PCM connection if you know that
reception conditions are difficult. For example, if your model is
powered by a large petrol engine with magneto ignition, or a
powerful electric motor.
Switching modulation
- Select the MODU sub-menu in the PARA menu
- Rotate the 3-D hotkey
- to the left for PPM (FM),screen shows (P)
- to the right for PCM,screen shows (C)
- If you change the setting,the PPM or PCM symbol on the screen
flashes.
- The actual transition to the new transmission mode only
occurs when you switch the transmitter off,and then on
again.
- The fact that the transmission mode only changes when you
switch the transmitter on and off is particularly important when
you are selecting a new model,as the type of modulation is
stored individually in each model memory.See also Section 7.2.
Check that the modulation setting is correct when you switch
the transmitter on again.The screen will show the symbol PPM
or PCM.
7.1.2 Stick mode (STCK)
The assignment of the receiver outputs is pre-defined, in order to
allow for the pre-programmed electronic mixer functions.
It is still necessary to set up the
transmitter to suit your chosen stick
mode, and this is carried out in this
sub-menu.
Basically all you have to do here is
define the stick to which the non self-
neutralising ratchet function (to control the motor or airbrake
function) is to be assigned (see also Section 5).
There are four alternative stick modes (modes 1-4):
MODE 1:(default)
Aileron right (Q)
Elevator left (H)
Throttle right (G)
Rudder left (S)
MODE 2:
Aileron right (Q)
Elevator right (H)
Throttle left (G)
Rudder left (S)
MODE 3:
Aileron left (Q)
Elevator left (H)
Throttle right (G)
Rudder right (S)
15
G
G
G
S
S
S
Q
Q
Q
H
H
H
