13
4
BASIC OPERATION
■
RIT/VXO function
(1200 MHz band)
In the 1200 MHz band, differences between actual and dis-
played frequencies can often be large. The RIT (receive in-
cremental tuning) function allows you to compensate the
displayed frequency for differences in the actual receive fre-
quency; the VXO (variable crystal oscillator) function allows
you to compensate the displayed frequency for differences in
the actual receive and transmit frequencies.
D
Activating RIT/VXO
➀
Select a frequency in the 1200 MHz band (or a memory
channel with a 1200 MHz band frequency; or the 1200
MHz band call channel).
➁
Push [MULTI] for 1 sec. to enter set mode.
➂
Push [MULTI(
↕
)] one or more times until “rV” appears.
➃
Push [MULTI(
↔
)] one or more
times to select “RIT” (RIT activated,
“VXO” (VXO activated) or “OFF”
(neither activated)—[DIAL] can
also be used.
➄
Push [VFO] to exit set mode and
return to the previously selected
mode.
• When RIT or VXO is activated, “:” ap-
pears above the decimal point in the
frequency indication (in the 1200 MHz band).
USING
SET MODE
D
Adjusting the frequency with RIT/VXO
Make sure that RIT or VXO is activated in set mode and that
the 1200 MHz band is selected.
➀
Select a frequency in the 1200 MHz band (or a memory
channel with a 1200 MHz band frequency; or the 1200
MHz band call channel).
➁
Push [RIT] to display the frequency
offset in kHz.
➂
Push [MULTI(
↔
)] one or more
times (or rotate [DIAL]) to adjust
the frequency offset.
• The frequency offset can be set
±5 kHz in 1 kHz steps.
➃
Push [VFO] to return to regular dis-
play indication.
☞
NOTE:
When using the RIT/VXO function the indicated off-
set frequencies are only approximate values.
Offset: –2 kHz (approx.)
Offset: +5 kHz (approx.)
IC-T81A/E Manual-(1) 01.12.5 6:55 PM Page 13 (1,1)
