Microphone Keys; Ptt; Hilo / Loc Dist; Plus - Raymarine Ray55E Owner's Handbook Manual

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Microphone Keys

1. PTT

Press this Push-to-Talk key to transmit.

2. HILO / LOC DIST

Press and release to toggle the transmit power from HI to LO. Can also be used to
select items in menu mode. Press and hold for to toggle between full receiver
sensitivity (Distant mode) and attenuated receiver sensitivity (Local mode).

3. 16/PLUS

Use this key to switch to the priority channel or to change the value of the
Secondary Priority (PLUS) Channel.

4. UP/DOWN

Use the arrow keys to change the active channel number. Press and hold for rapid
channel changing. Can also be used to scroll through selections in menu and
programming modes.

5. SCAN / SAVE

Press and release this key to access the Scan Mode menu, which is described on
page 44. If Scan Mode is active, pressing this key terminates the scan. Press and
hold for 3 seconds to enter a channel into the radio's memory. This function is
described in "Saving Channels to Memory" on page 49.

Transceiver Controls

6. CH/OK

Rotate this knob to change the current channel number and to change values in
Menu mode or during programming. Press in to enter values selected in Menu
mode or during programming.

7. PWR/VOL

Use this knob to turn the radio ON and OFF and to set the volume.
8. SQ
Use this knob to set the squelch threshold, which cuts off the receiver when the
signal is too weak for reception of anything but noise.
Ray218E and Ray55E Marine VHF Radios