5
BASIC OPERATION
5-3
■ Dualwatch operation
The ID-51A/E has two independent operating bands, A
band and B band.
The transceiver can simultaneously monitor two fre-
quencies, on A band and B band. This is called the Du-
alwatch. In the Dualwatch mode, the display shows A
band in the upper half and B band in the lower half.
Single watch operation
(Dualwatch OFF)
Dualwatch operation
(Dualwatch ON)
Selecting B band
Selecting A band
Push
Hold down
Hold down
Selecting lower half as MAIN band
Selecting upper half as MAIN band
MAIN band
(A band)
SUB band
(B band)
SUB band
(A band)
MAIN band
(B band)
Frequency range on the A/B bands:
108.000 MHz to 174.000 MHz
380.000 MHz to 479.000 MHz
• Some frequency ranges may be blocked, depending on the
transceiver’s version.
Upper: A band
Lower: B band
D MAIN band selection
You can make a call only on the MAIN band.
Band selection, operating frequency input using [DIAL],
operating mode selection, Memory channel selection,
memory write and band scope function can be made
on the MAIN band.
➥ Push [MAIN] to alternately select the upper band
(A band) or lower band (B band) as the MAIN band.
• “MAIN” appears on the MAIN band.
D Single watch operation
You can select the Single watch operation by turning
OFF Dualwatch.
During Single watch operation, the display shows only
the MAIN band.
➥ Hold down [DUAL] for 1 second to toggle be-
tween the Dualwatch and Single watch operation.
➥ Push [MAIN] to alternately select A band or B
band as the MAIN band.
Push
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