Speaker Microphone; Panel Description - Icom IC-M504A Instruction Manual

!3 POSITION INDICATOR
➥ Shows the current position data when a GPS receiver is
connected, or the time data is manually programmed.
• When the GPS position data is invalid, "??" may blink every
2 seconds instead of position data. The last position data is
held for only 23.5 hours, and after that, "No Position"
will appear.
• "??" may blink every 2 seconds instead of position data, after
4 hours have passed from the time when the position data is
manually programmed. The manually programmed position
data is held for only 23.5 hours, and after that, "
" will appear.
tion
➥ "No Position" appears when no GPS receiver is
connected and no position data is input manually.
!4 SCAN INDICATOR
➥ "PRI-SCAN 16" appears during Priority scan;
"NORMAL SCAN" appears during Normal scan. (p. 13)
➥ "DUAL 16" appears during Dualwatch; "TRI 16" ap-
pears during Tri-watch. (p. 14)
!5 SCRAMBLER ICON (p. 11)
Appears when the voice scrambler function is turned ON.
(only when the optional scrambler unit is installed.)
!6 LOCAL ICON (p. 8)
Appears when the Attenuator function is turned ON.
!7 BUSY/TRANSMIT ICON (p. 8)
➥ "BUSY" appears when receiving a signal or when the
squelch opens.
➥ "TX" appears while transmitting.

■ Speaker Microphone

No Posi-
q PTT SWITCH [PTT]
Hold down to transmit; release to receive. (p. 8)
w CHANNEL UP/DOWN KEYS [Y]/[Z]
➥ Push either key to change the operating channel, Set
mode settings, etc. (pp. 6, 7, 53)
➥ Checks TAG channels, changes scanning direction or
manually resumes a scan. (p. 13)
e TRANSMIT POWER KEY [HI/LO]
➥ Push to toggle the power high and low. (p. 8)
• Some channels are set to only low power.
➥ While holding down [HI/LO], turn ON the to turn the
Microphone Lock function ON or OFF. (p. 10)

PANEL DESCRIPTION

q
w
2
1
2
3
Microphone
4
Speaker
5
6
e
7
8
9
10
11
12
13
14
15
16
5