Channel Comments; Microphone Lock Function; Display Backlighting; Aquaquake Water Draining Function - RCA MRM400 Instruction Manual

Vhf marine two-way radio
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Channel comments

Memory channels can be labeled with a unique alphanumeric ID of up to 10 char-
acters each. More than 6 characters comment scrolls automatically at the channel
comment indicator after the channel selection.
Capital letters, small letters (except f, j, k, p, s, v, x, z), 0 to 9, some symbols (=*+ - .
/) and space can be used.
1.
Select the desired channel.
Cancel Dualwatch, Tri-watch or scan in advance.
[CH/WX], push [16] to edit the channel comment.
2.
While pushing
A cursor and the fi rst character start blinking alternately.
[▲] or [▼] to select the desired character.
3.
Pushing
[16] or [CH/WX] to move the cursor forward or backward, respec-
Push
tively.
③ to input all characters.
4.
Repeat step
[DSC] to input and set the comment.
5.
Push
[SCAN] to cancel.
Push
The cursor and the character stop blinking.

Microphone lock function

The microphone lock function electrically locks [▲] and [▼] keys on the supplied
9
microphone. This prevents accidental channel
changes and function access.
→ While pushing and holding [HI/LO] on the
microphone, turn power ON to toggle the
microphone lock function ON and OFF.

Display backlighting

The function display and keys can be backlit
for better visibility under low light conditions.
→ While pushing and holding [SCAN], push [▲] or [▼] to adjust the brightness of
the LCD and key backlight.
The backlight is selectable in 3 levels and OFF.

AquaQuake water draining function

AquaQuake helps drain water away from the speaker housing (water that might
otherwise muffl e the sound coming from the speaker). The transceiver emits a vi-
brating noise when this function is being used.
[▲] and [▼], turn power ON.
1.
While pushing and holding
"AQUA QUAKE" appears.
2.
A low beep tone sounds while
gardless of [VOL] control setting.
The transceiver never accepts a key operation while the AquaQuake func-
tion is activated.
[▲] or [▼] keys are held to drain water, re-

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