2. OPERATION
2-11
2.11.2
How to acti ate preset channels
1. Press one of the soft keys momentarily then press the
PRESET soft key to recall the preset channel. The in-
dication P SET above the channel number.
2. Rotate the
CH
knob to select the desired preset chan-
nel (0 to 7). The preset channel number appears ( P
SET0 - P SET7 ) while selecting the preset channel.
3. Press one of the soft keys momentarily then press the
PRESET soft key again to return to the last selected
regular channel. The indication P SET disappears
from the display.
2.11.3
How to delete preset channels
1. Recall the preset channel as directed in
paragraph 2.11.2.
2. Rotate the
CH
knob to select the preset channel to de-
lete.
3. Press one of the soft keys momentarily. Press and
hold the PRESET soft key until the indication SET(0-
7) and the channel number flash.
4. Press the DE ETE soft key.
2.12
PA HA L,
H RN peration
The FM-4721 has a 30 oudhailer that can be used with any 4-ohm PA horn. F -
R NO offers a small and a large PA HAI horn, the 220S and 240S , respectively.
In the PA HAI mode, the PA speaker listens back (acts as a microphone and sends
sound to the front panel speaker and the speaker microphone) through the PA horn,
which provides two-way communications through the PA horn.
PA HA L mode
: Allows the transceiver to be used as a oudhailer when an optional
speaker is installed. The PA HAI mode has a listen-back feature that provides two-
way communication through the PA HAI Speaker.
H RN mode
: Selected signal (see page 2-13) is transmitted through the PA
HAI speaker. hen the Fog horn, ells or histle signal is not being outputted the
FM-4721 listens back through the connected PA horn.
Note:
In the PA HAI or FO HORN mode, the FM-4721 receives communications
on the last-selected VHF channel before entering into the PA HAI or FO HORN
mode and receive DSC calls.
2.12.1
PA HA L mode
1. Press the
NC
key followed by the
/PA
key to acti-
vate the PA Hail mode. The indication PA appears on
the display.
2. Press the
PTT
switch to speak through the HAI /PA
speaker.
QUIT
DELETE
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