■ Function display
q BUSY/TRANSMIT INDICATOR (p. 8)
➥“BUSY” appears when receiving a signal or when the
squelch opens.
➥“TX” appears while transmitting.
w POWER INDICATOR (p. 8)
➥“25W” appears when high power is selected.
➥“1W” appears when low power is selected.
e TAG CHANNEL INDICATOR (p. 13)
Appears when a tag channel is selected.
r CHANNEL NAME INDICATOR
➥Channel comment appears if programmed. (p. 9)
➥“Low Battery” appears when the battery voltage drops
to approx. 10 V DC or below.
➥“DUAL” appears during dualwatch; “TRI” appears dur-
ing tri-watch. (p. 11)
➥“WAIT” appears in the IC-M503 display while transmit-
ting via the HM-134 remote-control microphone.
•In the above case, the connected HM-134 has priority.
➥“LSTN” appears in the IC-M503 display when pushing
the PTT switch on the HM-134, while the intercom func-
tion is activated.
t SCRAMBLER INDICATOR (p. 10)
Appears when the optional voice scrambler is activated.
y DUPLEX INDICATOR
Appears when a duplex channel is selected.
u CHANNEL NUMBER READOUT
➥Indicates the selected operating channel number. “A”
appears when a simplex channel is selected. (p. 6)
➥In set mode, indicates the selected condition. (pgs.
15,16)
i CHANNEL GROUP INDICATOR (p. 6)
Indicates whether an International, U.S.A., Holland, DSC
or ATIS channel is selected.
•Available channel groups depend on version.
o CALL CHANNEL INDICATOR (pgs. 6, 9)
Appears when a call channel is selected.
INT
CALL
BUSY
25W
TAG SC DUP
CALLING
w
q
e
r
ty
io
u
PANEL DESCRIPTION
4
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