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4
BASIC OPERATION
RIT function
To compensate for the off frequency of a transmitting station,
the transceiver has receive incremental tuning for receiving fre-
quencies above 630.000 MHz. The RIT function cannot be used
in TV mode and is automatically cancelled below 630.000 MHz.
The receive incremental tuning (RIT) shifts only the receive
frequency within approx. ±5 kHz.
q Set an operating frequency above 630.000 MHz.
w Push [0 RIT] for 1 sec. to select the RIT set mode item.
If ATT appears, rotate [DIAL] to select RIT.
e Push [0 RIT] again to select the RIT set mode.
r Rotate [DIAL] to adjust the shift frequency.
•–5 to +5 appears while setting the shift frequency.
t Push [VFO] to exit the RIT set mode.
Attenuator function
The attenuator prevents a desired signal from distorting when
very strong signals are near the desired frequency or when
very strong electric elds, such as from a broadcasting sta-
tion, are near your location. The attenuation level is approx.
10 dB.
q Push [0 RIT] for 1 sec. to select the ATT set mode item.
•“RIT or ATT appears. If RIT appears, rotate [DIAL] to select
ATT. When the operating frequency is 629.995 MHz or below,
ATT set mode is automatically selected.
w Push [0 RIT] again to select the ATT set mode.
e Push [VFO] to exit the ATT set mode.
Attenuator is in use
FM SKIPP
ATT
ATT appears
If the operating frequency is
629.995 MHz or below, this
menu does not appear.
RIT/ATT selection menu
Attenuator set mode
R
FM SKIPP
RIT indication
RIT frequency adjustment
Approx. +3 kHz shift
RIT function example
RIT function OFFRIT set mode
IC-T90A-1.qxd 02.7.24 03:36 PM Page 30 (1,1)
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