![background image](http://html.mh-extra.com/html/icom/ic-m504a/ic-m504a_instruction-manual_612822010.webp)
4
2
PANEL DESCRIPTION
■
Function display
BUSY 25W
INT
CALL
LOC RX
DUP
SCRAM
TAG
NORMAL SCAN
-
34°34.506N
123°23.236W
Local
1:10
CALLING
o
i
q w e r t
y
!7
!6
!5
!4
!1
u
!3
!2
!0
q
RX SPEAKER ICON (p. 49)
Appears during the RX Speaker mode.
w
POWER ICON (p. 8)
➥
“
25W
” appears when high power is selected.
➥
“
1W
” appears when low power is selected.
e
TAG CHANNEL ICON (p. 13)
Appears when a TAG channel is selected.
r
DUPLEX ICON (p. 7)
Appears when a duplex channel is selected.
t
CHANNEL GROUP ICON (p. 7)
Indicates whether an U.S.A. “
USA
,” International “
INT
,”
Canadian “
CAN
” or weather “
WX
” channel is in use.
y
CALL CHANNEL ICON (pp. 6, 9)
Appears when the call channel is selected.
u
LOW BATTERY ICON
Blinks when the battery voltage drops to approximately
10 V DC or below.
i
MAIL ICON (pp. 35, 43)
Blinks when there is an unread message.
o
AUTO SW ICON (pp. 46, 47)
Blinks when both the Auto Switch function and Auto Tune
timer are turned OFF.
!0
CHANNEL NUMBER READOUT
Indicates the selected operating channel number.
!1
CHANNEL COMMENT INDICATOR
Channel comment appears if programmed. (p. 9)
• In the Hailer mode, “
WAIT
” appears while holding down
[PTT]
of the optional Command microphone.
!2
TIME ZONE INDICATOR
➥
Shows the current time data when a GPS receiver is
connected, or the time data is manually programmed.
• When the GPS current time data is invalid, “
??
” may blink
every 2 seconds instead of current time data. After 23.5
hours have passed, “
No Time
” will appear.
• “
??
” may blink every 2 seconds instead of current time data,
after 4 hours have passed from the time when the time data
was manually programmed. The manually programmed time
data is held for only 23.5 hours, and after that, “
No Time
”
will appear.
➥
“
Local
” appears when the offset time data is set. (p. 44)
➥
“
No Time
” appears when no GPS receiver is con-
nected and no time data is manually input.
Summary of Contents for IC-M504A
Page 1: ...INSTRUCTION MANUAL iM504A VHF MARINE TRANSCEIVER ...
Page 78: ......