ICOM IC-M504 User Manual
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.
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
13.8 V/4
Ω
) as described on p. 58.
• Transmitting is not possible during hailer operation.
• The received signal is muted 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.
• “T
TA
AL
LK
K” appears.
• “W
WA
AI
IT
T” appears at the channel comment indicator when the op-
tional command microphone is in use.
• 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.
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)
The transceiver’s display indicates ‘Receiving DSC calls.’
(p. 41)
HAILER
HAILER
15
15
Push