Handset Hs-4721 - Furuno FM-4721 Operator's Manual

No. Control
12 PTT switch
(Push-To-Talk
Switch)
13 Microphone
14 Microphone
speaker
S, T
15
16 16/9
2.1.2

Handset HS-4721

The HS-4721 Handset remotely operates all VHF, DSC, setup menus, and PA/Fog
modes. The HS-4721's operation is same as FM-4721 except the receiver audio vol-
ume setting and squelch level setting. The HS-4721 is supplied with 7 m of routing ca-
ble and can be extended up to 21 m using three 7 m extension cables model CT-100.
The Intercom feature can be used between the HS-4721 and the FM-4721. In addition,
speaker wires are supplied at the panel mount of the routing cable to connect an ex-
ternal speaker. This can be useful when it is difficult to hear voice over the handset,
because of noisy environment.
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12
13
14
Radio mode, PTT switch pressed: The transmitter is enabled for voice
communications with another vessel.PA mode: Press the PTT switch to
amplify your voice over a PA horn. HS-4721 Handset connected and
intercom mode enabled: Press the PTT switch to enable voice commu-
nications between the FM-4721 and the HS-4721.
The microphone has Clear Voice Noise Reduction Technology, which
reduces the amount of background (wind, engine) noise transmitted.
Note: Position your mouth about 1.5 cm away from the microphone hole
and speak in a normal voice.
Talk into the speaker to transmit your voice.
The S and T on the microphone function the same as the CH knob on
the front panel of the transceiver.
• Momentary press: Recall CH16 from any channel location.
• Long press: Recall CH9. (CH9 is used in some parts of the world as
an alternative calling channel to CH16.)
Press the key again to revert to the previously selected working channel.
15
16
Description
2. OPERATION
2-3