5-2
■ Spectrum scope screen
This DSP-based spectrum scope allows you to display
the conditions on the selected band, as well as relative
strengths of signals. The IC-R9500 has two modes for
the spectrum indication— one is center mode, and an-
ther one is fixed mode.
In addition, the IC-R9500 has a mini-scope screen to
save screen space.
DD
Center mode
Displays signals around the set frequency within the
selected span. The set frequency is always displayed
at the center of the screen.
q Push [EXIT/SET] several times to close a multi-
function screen, if necessary.
w Push [F-1•SCOPE] to select the scope screen.
• The spectrum scope shows the peak level holding func-
tion. Peak levels are displayed in the background of the
current spectrum in a different color until the receive fre-
quency changes. This can be deactivated and the wave-
form color can be set in scope set mode. (p. 5-7)
e Push [F-6•CENT/FIX] to select the center mode.
•“ ” is displayed when center mode is selected.
r Push [F-2•SPAN] once.
• Multifunction switch guide changes to the span setting
guide.
t Push [SPAN+] or [SPAN–] several times to select
the scope span.
•±2.5 k, ±5.0 k, ±10 k, ±25 k, ±50 k, ±100 k, ±250 k,
±500 k, ±1 M, ±2.5 M and ±5 MHz are available.
y Push [F-3•BW/SPEED] once.
• Multifunction switch guide changes to the resolution
band width/speed setting guide.
u Push [BW+] or [BW–] several times to select the
resolution band width.
• 0.2 k, 0.5 k, 1 k, 2 k, 5 k, 10 k and 20 kHz are available.
i Push [SPEED–] or [SPEED+] several times to se-
lect the sweep speed.
o Push [F-4•ATT] several times to activate an attenu-
ator or turn the attenuator OFF.
• 10, 20 and 30 dB attenuators are available.
!0 Push [F-5•HOLD] to freeze the current spectrum
waveform.
•“ ” appears while the function is in use.
• The peak hold function can be deactivated in scope set
mode.
!1 Push [EXIT/SET] to exit the scope screen.
NOTE: If a strong signal is received, a ghost wave-
form may appear. Push [F-4•ATT] several times to
activate the spectrum scope attenuator in this case.
Spurious signal waveforms may be displayed if gen-
erated in the internal scope circuit and do not indi-
cate a receiver malfunction.
HOLD
