Radio Communication In Brief; Powering Vhf; Operating Vhf Radio Communication; Receiving A Call On Channel 16 - Sailor RT5022 VHF DSC Operation Manual

1 Radio communication in brief

1.1

Powering VHF

The VHF is turned on by a single press on the ON/OFF/Volume button. The VHF
is turned off by pressing the ON/OFF/Volume button for 3 seconds.
Always indicated by a count down window in the information display, except if the
radio is powered down in distress mode.
Any connected devices (Alarm Panel, Handset, CUs) will be operational only if
the VHF is powered.
1.2

Operating VHF radio communication

The VHF is operated by means of a handset.
To bring the VHF in transmission mode the handset must be hooked off and the PTT button
on the handset has to be pressed. Transmission is indicated by the lighted TX indicator.
Receive mode is always reached by releasing the PTT button.
Handset
hooked on
Transmit and receive is performed on the working channel shown in the telephone display.
If the handset is used with an RT5020 duplex radio, received signal can always be monitored
in the handset earpiece. With the RT5022 simplex/semi-duplex radio the received voice
signal can only be monitored in the earpiece while PTT is released.
1.3

Receiving a call on Channel 16

When you hear your call name in the loudspeaker:
1. Lift the handset.
2. Press the PTT key.
3. Repeat the name of the station calling you and say "This is [your ship's name]."
4. Suggest a channel other than 16 by saying "Channel [suggested number]".
5. Say "Over" and release the PTT key
to allow your caller to confirm the suggested new channel.
0544
Handset
hooked off Press PTT Release PTT
3