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Lisheng (Fujian) Communications Co., Ltd.
Note:
It only monitor the valid signal but not the background noise.
Squelch off
Press the programmed “Squelch Off” side button to open noise squelch. No matter the QT/DQT is
matched or not, it can monitor the activities of the current channel. Press this side button again to
close it.
Note:
If there is a valid signal, it monitors the audio signal. If not, it monitors the background noise.
Squelch off Momentary
Keep pressing the programmed “Squelch Off Momentary” side button to open noise squelch. No
matter the QT/DQT is matched or not, it can monitor the activities of the current channel. Release this
side button to close it.
Note:
If there is a valid signal, it monitors the audio signal. If not, it monitors the background noise
Squelch Level (SQL)
SQL function can filter the undue background noise to mute the speaker when the radio doesn’t
receive any signals. You can set up the squelch level from 0 to 9. The higher squelch level, the
stronger noise inhibiting ability. It’s not easy to receive the noise signal, but meanwhile you may miss
some weak signals which maybe useful for you. On the contrary, the lower squelch level, it’s easier to
receive the weak signals, but also easier to be affected by noise signals. Level 0 means to disable
SQL function. You can set up the appropriate squelch level via software according to the current
communication environment and requirements.
Channel scan
Press the programmed “Scan” side button to start scanning from the current channel, the radio will
report “Scan On” and start to scan the channel numbers one by one on the list which we programmed
before. Once a valid signal is detected, it will switch to this channel directly. You can press PTT key to
transmit. Press this button again, the radio will report “Scan Off” and exit Scan mode.
Note
: The Scan status will not be memorized once the radio is power off.
Auto Scan
You can open "Auto Scan" function in some specified channels via software. When you turn to this
channel, the radio will start to scan the channels one by one according to the scanning list which we
programmed before. Once a valid signal is detected, it will switch to this channel directly. You can
press PTT key to transmit. Rotate the channel knob to other un-set channel, it will stop scanning.
Scan Revert Channel