Setting The Power Output (Hi/Lo) - Raymarine Ray49 Owner's Handbook Manual

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Setting the Power Output (HI/LO)

The choice of power output is dependent upon the distance of transmission and
transmitting conditions. As a part of FCC procedures and marine communications
courtesy, initial contact should always be attempted using low power. You should
switch to high power only when contact can not be made on low power or in
emergency situations. Rotate the CH/OK knob to toggle the TX power from LOW
(1 watt) to HIGH (25 watts). The corresponding LO or HI indicator appears.
You can also press and release the HI/LO–LOC/DIS key on the microphone to
toggle the TX power.
Some channels are limited by regulation to be low power only. If the HILO
operation request is denied, an error tone beeps.
Channels restricted to low transmit power are as follows:
• Canadian channel set: 13, 15, 17, 77
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VHF OPS
SCAN MODE
>HI/LO POWER
SAVE CH
HI/LO POWER
HI
>LOW
Ray49 Marine VHF Radio
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D10134-1
HI/LO POWER
>HI
LOW
VHF OPS
SCAN MODE
>HI/LO POWER
SAVE CH