Copyright © 2015 RCA Communications Systems
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
16
3. Channel Comment Indicator
- Channel comment appears if programmed.
- “LOW BATTERY” scrolls when the battery
voltage drops below 10.8V DC.
- “SC” blinks during priority scan. “SCAN”
blinks during normal scan.
- “DW” blinks during Dualwatch. “TW” blinks
during Tri-watch.
4. DSC Indicators (Distress calls)
- “DSC” appears when a DSC call is received.
- “POS REPLY” appears when a position reply
call or position report reply call is received.
5. GPS Indicator
- Appears while valid position data is received.
- Blinks when invalid position data is received.
- Disappears when no GPS receiver is
connected.
6. Weather Channel Indicator
- “WX” appears when a weather channel is
selected.
- “WX ALT” appears when the weather alert
function is in use; blinks when an alert tone is
received.
7. Duplex Indicator
Appears when a duplex channel is selected.
8. Low Power Indicator
Appears when low power is selected.
9. Call Channel Indicator
Appears when the call channel is selected.