Copyright © 2015 RCA Communications Systems
17
MR240
TM
VHF Marine Two-Way Radio Instruction Manual
■
Transmitting
1. Push [Hi/Lo] to select output power.
- “LOW” appears when low power is selected.
- Choose low power for short range
communications; choose high power for
longer distance communications.
- Some channels work in low power mode
only.
2. Hold down [PTT] to transmit, then speak
into the microphone.
- “TX” appears.
- Channel 70 cannot be used for transmission.
3. Release [PTT] to receive.
NOTE: Transmitting without an antenna can
damage the transceiver.
- To maximize the readability of your transmitted
signal, pause for a second after pushing [PTT]
hold the microphone 2” - 4” (5 - 10cm) from
your mouth and speak into the microphone at
a normal voice level.
CHANNEL GROUP SELECTER
This transceiver is pre-programmed with
U.S.A., International, Canadian channels.
Choose the appropriate channel groups for
your operating area.
1. Push [CH] to select a regular channel.
2. Hold down [CH] for 1 second, one or more
times,to select the desired channel group.
- The selectable channel groups are different,
depending on your operating area.
