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50
7
OTHER FUNCTIONS
■
Hailer operation
The IC-M504A 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 page 56.
• Transmitting is not possible during hailer operation.
• The received signal is muted during hailer operation.
q
Push
[HAIL•RX ] to enter the Hailer mode.
HAILER
15
w
Hold down
[PTT] and speak into the microphone at a nor-
mal voice level.
• “
TALK
” appears.
• “
WAIT
” appears on the display while holding down
[PTT] of the
optional Command microphone.
• To adjust the hailer level, rotate
[DIAL].
e
After releasing
[PTT], you can hear the response through
the speaker.
r
To return to normal operating mode, push
[CLR] or push
[HAIL•RX ].
• While in the
Hailer mode, the transceiver’s transmit and
receive functions are interrupted. If the transceiver is in
the transmit mode, the Hailer function is not available.
• When a DSC Call is received, the
Hailer mode is auto-
matically cancelled. The received call type is displayed
on the LCD. (p. 35)
Summary of Contents for IC-M504A
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