6
3
BASIC OPERATION
■ Channel selection
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Channel 16
Channel 16 is the distress and safety channel. It is used for
establishing initial contact with another station and for emer-
gency communications. Channel 16 is monitored during both
dualwatch and tri-watch. While standing by, you must monitor
Channel 16.
➥Push [16] to select Channel 16.
•Output power turns to “25W” automatically, whenever Channel
16 is selected. For example, when selecting Channel 16 via the
dial, a scan stops at Channel 16 or [16•C] on the HM-134 is
pushed, etc.
➥Push [DIAL] to return to the condition before selecting Chan-
nel 16, or rotate [CHANNEL] to select operating channel.
•Output power returns to the previous output power automatically.
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Call channel
Each regular channel group has a separate leisure-use call
channel. The call channel is monitored during tri-watch. The
call channels can be programmed (p. 9) and are used to store
your most often used channels in each channel group for
quick recall.
➥Push [CALL] to select the call channel of the selected
channel group.
•“CALL” and call channel number appear.
➥Push [DIAL] to return to the condition before selecting call
channel
, or rotate [CHANNEL] to select operating channel.
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International channels
There are 57 International channels for the IC-M503.
q Push [DIAL] to select a regular channel.
w While pushing and holding [HI/LO], push [DIAL]to change
the channel group, if necessary.
•“INT” appears when International channels are selected.
e Rotate the channel selector to select a channel.
•“DUP” appears for duplex channels.
Push
CALL
INT
25W CALL
TAG
CALLING
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