Icom IC-28A Instruction Manual page 7

(5) TUNING CONTROL
(6) DOWN/UP SWITCH
(7) TONE SWITCH
(IC-28A U.S.A. version)
TONE
CALL SWITCH
(except U.S.A. version)
CALL
(8)WRITE SWITCH
WRITE
In the MEMORY mode, the SET SWITCH controls the skip function.
'The skip function allows memory channels to be deleted from the
normal scanning sequence when memories are being scanned. Refer
to SECTION 5-3 MEMORY CHANNEL SCANNING.
The function of this control is affected by the mode of operation
being used. |
In the VFO mode, turn clockwise to increase the operating fre-
quency and counterclockwise to decrease it. After pushing the SET
SWITCH, the TUNING CONTROL is used to select the subaudible
tone number on the 1С-28А (U.S.A. version), to set the amount of
transmit offset when using the duplex mode and to select the tuning
step size for frequency changes with the TUNING CONTROL.
Refer to SECTIONS 5 - 4 SUBAUDIBLE TONE ENCODER and
DUPLEX PROGRAMMING, and 5-1 RECEIVING.
In the MEMORY mode, turn clockwise to increase the selected
memory channel and counterclockwise to decrease it. Refer to
SECTION 5-2 MEMORY READING.
This switch operates differently depending on the setting of the
VFO/MR SWITCH.
In the VFO mode, push to change the selected operating frequency
in 1MHz increments. In the MEMORY mode, push to change the
selected memory channel in one channel increments. Refer to
SECTIONS 5-1 RECEIVING and 5-2 MEMORY READING.
The name and function of this switch varies depending on the
version of transceiver. |
e ТОМЕ SWITCH:
Push to turn ON and OFF the subaudible tone encoder when using
the duplex mode. The word "ТОМЕ" appears when the tone
encoder is turned ON. Refer to SECTION 5 - 4 SUBAUDIBLE
TONE ENCODER.
e CALL SWITCH:
Push to select the call channel which has been programmed in
memory channel 21. The letter "С" appears in place of the me-
mory channel number when the call function is activated. Refer to
SECTION 5-5 CALL CHANNEL FUNCTION.
This switch works differently depending on the setting of the
VFO/MR SWITCH.
In the VFO mode, push to store the displayed frequency on the
LCD readout in the memory channel represented by the memory
channel number also displayed. Refer to SECTION 5 - 2 MEMORY
PROGRAMMING.