Maas LP-4502+ Bedienungsanleitung Seite 38

Scrambler
The radio sets off / 1-9 codes of scrambler to measure a
radio signal securely. It can only understand by someone
who has special group at the same code. You can't
communicate clearly with different scrambler code settings.
Factory default: OFF
*This feature need to be programmed separately.
SOS (Emergency) Channel
Hold [CH] for about 3 sec to enable SOS channel until
shows on the screen. To disable SOS channel, hold [CH] for
about 3 sec until disappears and then restore to the
original mormal channel.
Factory default: CH1
Dual Watch Scan
Press and hold [CTS] about 2 sec to start Dual Watch Scan
function. The LCD shows and indicates Dual
Watch Scan in progress.
- In the dual watch scan, will be the normal channel and DW
channels alternate listen. Regardless whether of the normal
channel received signal or not, every 5 seconds, the receipt
will be temporarily switched to the DW channel 0.2 seconds,
check whether the signal is received at the DW channel, if
the signal is received at the DW channel, will stay on the DW
channel until no signal is received exceeds 5 seconds, the
receipt will back to the normal channel, or no signal is
received at the DW channel, the receipt will back to the
normal channel Immediately.
- When the signal is received at the DW channel, pressing
[PTT] will talk on the DW channel, otherwise will talk on the
normal channel, release [PTT] will be continued to dual
watch scan after 5 sec.
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