VHF radio communication
98-171832-A Chapter 2: Operation 17
VHF radio communication
Basic VHF operation
You can make VHF calls using the Handset or another speaker device.
Quick guide to radio telephone calls
1. Push the PTT button on the speaker device. When the TX
indicator is highlighted in the display, the transmission is active.
2. To enable reception of a radio signal release the PTT button.
Receiving a radio telephone call on channel 16
When you hear your call name in the loudspeaker, proceed as follows:
1. The symbol RX shows that the radio is receiving on the channel displayed.
2. Lift the Handset or take another speaker device.
3. Push the PTT button. The symbol TX shows that the radio is transmitting on
the channel displayed.
4. Repeat the name of the station calling you and say: “This is [your ship’s
name]”.
5. Suggest a working channel other than 16 by saying: “Channel [suggested
channel number]”.
6. Say: “Over.” and release the PTT button to allow the caller to confirm the
suggested new channel.
7. Switch to the new channel using the on-screen keypad or by turning the
channel selector knob to the agreed channel and begin your conversation.
Push PTT only when you are talking.
A tap on the 16/C on-screen key always brings you to
channel 16, the international calling and distress
channel, no matter what state the radio is in.
Push PTT only when you are talking. Always say “Over” just before
releasing the PTT button.
One transmission is limited to 5 minutes duration.