Icom IC-820H Instruction Manual page 5

@ VFO SWITCH [VFO-A=B] (p. 20)
@ Selects VFO mode and toggles VFO A and
B.
gama @ When pushed for 2 sec. after pushing
then — [FUNC], equalizes the contents (frequency,
operating mode, etc.) of the two VFO's.
- The rear (undisplayed) VFO contents are
equalized to the front (displayed) VFO con-
tents.
@ CALL SWITCH [CALL-SPLIT] (pgs. 33, 26)
e Calls up the call channel.
e Turns the RIT function ON and OFF while
in the satellite mode.
amg ¢ Turns the split function ON and OFF after
then = pushing [FUNC].
- This function is available in the VFO mode
only.
€) IF SHIFT CONTROL [SHIFT] (pgs. 22, 24)
e Shifts the center frequency of the main band IF
in SSB and CW modes.
@ Can be used as the sub tuning dial according to
the L-set mode selection.
- See the description of & for details.
FUNCTION
The IF shift electronically changes the IF passband
frequency to reject interference. The IF shift is espe-
cially effective in SSB operation and is not available in
FM operation.
RIT —®&SHIFT
RIT-@- SHIFT RIT ~@ SHIFT
Shifts to low Shifts to high
PANEL DESCRIPTION 1
€@ RIT CONTROL [RIT] (pgs. 22, 24)
¢ Shifts the main band receive frequency without
changing the transmit frequency while the RIT
function is ON.
- Rotate the contro! clockwise to increase the receive
frequency, or rotate the control counterclockwise to
decrease the receive frequency.
- The shift frequency resolution can be selected for
SSB/CW and FM separately using the L-set mode.
SSB/CW: 1 Hz (100 Hz), 10 Hz (1 kHz), 20 Hz (2 kHz)
FM > 10 Hz (1 kHz), 50 Hz (5 KHz), 100 Hz (10 kHz)
Bracketed values are maximum shift frequencies in
each direction.
*@ Can be used as the sub tuning dial according to
the L-set mode selection.
FUNCTION
The sub tuning dial allows you to change the frequency
without using the tuning dial. Tuning speed varies
according to the control rotation. However, this is not a
scan function, therefore, tuning does not stop, even
when detecting a signal. This control is convenient when
you want to search both the main and sub bands.