![background image](http://html.mh-extra.com/html/icom/ic-m504/ic-m504_instruction-manual_612818058.webp)
52
7
OTHER FUNCTIONS
■
Hailer operation
The IC-M504 has a hailer function for voice amplification
over a loudspeaker, making it unnecessary to leave the
bridge to talk a hailing party.
Connect an external hailer speaker (25 W nominal at
13.8 V/4
˘
) as described on p. 58.
• Transmitting is not possible during hailer operation.
• The received signal is muted during hailer operation.
q
Push
[HAIL•RX ]
to enter hailer mode.
w
Push and hold
[PTT]
and speak at a normal voice level
into the microphone.
• “
TALK
” appears.
• “
WAIT
” appears on the channel comment indicator, when op-
erating the hailer function by using an optional command micro-
phone.
• To adjust the hailer level, rotate
[DIAL]
.
e
To return to normal operation, push
[CLR]
or
[HAIL•RX ]
.
• While in the hailer mode, the transceiver functions (trans-
mit and receive) are interrupted. If the transceiver is in
transmit condition, the hailer function is not available.
• When a DSC call is received, the hailer function is inter-
rupted with an automatic return to the transceiver mode.
The transceiver’s display indicates ‘Receiving DSC calls.’
(p. 41)
HAILER
15
Push
Summary of Contents for IC-M504
Page 1: ...INSTRUCTION MANUAL iM504 VHF MARINE TRANSCEIVER ...
Page 78: ......