Furuno FM-2710 User Manual
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4. Pick up the microphone, press the [PTT] switch, and then call the party you want to talk with. Hold
the microphone fairly close to your mouth and speak clearly.
Press and hold the [PTT] switch to talk, and release it to listen for the response.
If the [PTT] switch is held for more than 5 minutes, transmit function is disabled, a beep sound, and "to"
(time out) blinks instead of the channel display. This condition continues until the [PTT] switch is
released.
IMPORTANT:
CH16 is used in all USA coastal areas to call the Coast Guard and for general vessel calling. In certain
high traffic areas, CH09 is also used as the Hailing Frequency. Please check with your local Coast Guard.