Icom IC-M502 Instruction Manual page 7

➥ While pushing [HI/LO], rotate [CHANNEL] to adjust the
brightness of the LCD and switch backlight.
y ATTENUATOR/INTERCOM/SCRAMBLER SWITCH
[LO/DX•IC•SCR]
➥ Toggles the attenuator function ON and OFF when
pushed momentarily. (p. 8)
• "LOCAL" appears when the attenuator is in use. The order of
indication precedence is "LOCAL," "SP OFF" and "CALL."
➥ Activates an optional intercom function when pushed for
1 sec. (p. 29)
➥ Calls optional HM-127
REMOTE-CONTROL MICROPHONE
when pushed and held while in intercom mode. (p. 29)
➥ While pushing [HI/LO], activates an optional voice
scrambler function. (p. 10)
• The optional voice scrambler function cannot be used on
channel 16 and 70.
u CHANNEL 16/CALL CHANNEL SWITCH [16•9]
➥ Selects channel 16 when pushed. (p. 6)
➥ Selects call channel when pushed for 1 sec. (p. 6)
• "CALL" appears when call channel is selected. "LOCAL" and
"SP OFF" indications have priority.
➥ Push for 3 sec. to enter call channel programming con-
dition when call channel is selected. (p. 9)
➥ While pushing [HI/LO], enters memory name program-
ming condition. (p. 9)
➥ Enters set mode when pushed while turning power ON.
(p. 30)
PANEL DESCRIPTION
i DISTRESS SWITCH [DISTRESS]
Transmits distress call when pushed for 5 sec. (p. 16)
o CHANNEL/DUALWATCH/TRI-WATCH SWITCH
[CH/WX•DW•U/I/C]
➥ Selects and toggles the regular channels and weather
channel when pushed momentarily. (pgs. 6, 7)
➥ While pushing [HI/LO], selects one of 3 regular channels
in sequence when pushed. (pgs. 6, 7)
• International, U.S.A. and Canadian channels are available for
regular channels.
➥ Starts dualwatch or tri-watch when pushed for 1 sec.
(p. 11)
➥ Stops dualwatch or tri-watch when either is activated.
!0 SCAN SWITCH [SCAN•TAG] (p. 13)
➥ Starts and stops normal or priority scan when tag chan-
nels are programmed.
➥ Push [SCAN•TAG] for 1 sec. to set the displayed chan-
nel as a tag (scanned) channel.
➥ While pushing [HI/LO], push for 3 sec. to clear all tag
channels.
!1 DSC/POSITION SWITCH [DSC/ENT•POS]
➥ Selects the DSC menu when pushed. (p. 14)
➥ Shows current position and time from an optional GPS
receiver, etc. when pushed for 1 sec. (p. 15)
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