CRT Space-U, User Manual

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7.01 Squelch Off / Squelch Off Momentary
SQL key programmed as Squelch Off or Squelch Off Momentary to
monitor the weak signal.
1. Squelch Off: Press [SQL] key to disable squelch, press [SQL] key
again to resume squelch.
2. Squelch Off Momentary: Press [SQL] key to disable squelch,
release key to resume squelch.
7.02 Squelch Level Setup
This function use for setting RX signal strength, the calling will be
heard only when reach set level, otherwise the radio will keep mute.
1. In standby, hold [SQL] key, then short press [UP]/[DN] or turn VOL
Knob, the LCD displays current squelch level.
2. Press [UP]/[DN] or turn VOL knob to choose wanted squelch level.
3. Press any key to confirm and exit.
7.03 Frequency Scan
In frequency (VFO) mode, this function is designed to monitor signal
of all frequency points under each step size.
1. In VFO mode, short press [SCA] to start frequency scan.
2. Short press [UP] or [DN] to change scan direction.
3. Short press [UP]/[DN] key or any other key except the volume knob
to exit scan.
7.04 Channel Scan
In channel mode, this function is used to monitor signal in all channels.
1. In channel mode, Press [SCA] key start channel scan.
2. Short press [UP]/[DN] key to change scan direction.
3. Short press [UP]/[DN] key or any other key except the volume knob
to exit scan.
7. SHORTCUT OPERATION
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The above functions should be set in program software.