Screen Symbols And Meanings - Navman MCB 7270 Operation Manual

1.2 Screen Symbols and Meanings

This simulation shows the location of all the symbols that may appear on the screen:
Symbol Meaning
X Channel is locked out (in ALL SCAN mode only).
88 Channel selected (big digits).
Tx Transmitting on maximum power (PTT depressed).
Rx The signal of the tuned channel is greater than the squelch setting and the audio
is not muted.
CH 123 Shows which of the three favourite channels, if any, are selected. Otherwise blank.
PRI Priority Distress/Calling channel is selected.
BAT Voltage (shown in big digits) of the battery supplying the radio. If the battery voltage
falls below 10.8V, BAT will flash continuously and the radio will sound a warning
beep.
LOC Local mode for 10-12dB reduced receiver sensitivity.
REJ Noise rejection is on.
CB (Citizen Band) land radio band frequencies are selected.
MB (Marine Band) marine radio band frequencies are selected.
SCAN The radio is in scanning mode (four scanning modes are available).
SIGNAL The signal strength of the received channel. The bars are always shown when the
radio is receiving. One bar indicates a very weak signal, eight bars indicates a very
strong signal. Note that the signal strength is not shown for transmissions.
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NAVMAN
MCB 7270 Marine CB 27 MHz Radio Operation Manual