Lisheng LS-A8 User Manual Download Page 3

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Lisheng (Fujian) Communications Co., Ltd.               

announcement function is enable, your radio will automatically report the channel No. where the knob 
locates. (See figure 3) 

Transmit 

Keep pressing the PTT key and speak into the microphone with your normal voice, hold 
the radio about 2.5cm to 5cm from your mouth. (See figure 4) 

Receive

Release the PTT key to receive. 

Programming Functions 

The following functions could be programmed via software. Press the programmed side button to 
activate the relevant function (long press or short press), you will hear 1 “Beep” when the function is 
activated. Press this button again to exit it and you will hear 2 “Beep” which means the function is 
closed. If functions are closed, please program firstly before use it. 

PTT ID   

The PTT ID is used for connecting or disconnecting with the repeaters or telephone systems. We have 
3 Encode modes to transmit PTT ID code, as following: 

Begin of Tx

: It will emit ID code while you press the PTT Key.   

End of Tx

: It will emit ID code while you release the PTT key.   

Both Begin and End

: It will emit ID code both while you press and release the PTT key. 

Note:

 This function is available at each channel.   

Monitor Function   

When signal come in, press the programmed “Monitor” side button to open signaling squelch and 
monitor the activities of the channel. No matter QT/DQT or the optional signaling is matched or not, it 
can monitor the activities of the current channel. Press this button again to close it.   

Note:

 it only monitor the valid signal but not the background noise. 

Monitor Momentary 

Keep pressing the programmed “Monitor Momentary” side button to open signaling squelch. No matter 
QT/DQT or optional signaling is matched or not, it can monitor the activities of the current channel.   

Release this button to close it. 

Summary of Contents for LS-A8

Page 1: ...o increase the volume and turn counter clockwise to decrease the volume 5 LED Indicator Receiving Green Light bright Transmitting Red Light bright 6 MIC Microphone 7 PTT Push To Talk Key Press and hol...

Page 2: ...ctivate exit VOX function 10 Scan Scan the activities from other channels 11 Channel Lock To lock the current channel position and the channel knob is invalid 12 Emergency Alarm To transmit Emergency...

Page 3: ...disconnecting with the repeaters or telephone systems We have 3 Encode modes to transmit PTT ID code as following Begin of Tx It will emit ID code while you press the PTT Key End of Tx It will emit ID...

Page 4: ...t 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 Le...

Page 5: ...the appropriate power level via software according to the current communication environment and requirements Tx low power helps you save the battery power and reduce the risk of interfering with other...

Page 6: ...ion which can further secure the safety of communication and those radios without this function are unable to receive real audio You can open Scrambler function in some specified channels via software...

Page 7: ...re alert time via software When transmission time is reached at the TOT Pre alert 1 15s the radio will beep DU DU DU sound which means that the radio will be prohibited to transmit once TOT time limit...

Page 8: ...remind other users in the same channel Power off the radio to exit emergency alarm mode Wire Clone Wire Clone allows you to copy the original setting of one radio to others 1 Connect the main unit and...

Page 9: ...lation Limited 2 5kHz Audio Distortion 5 Residual frequency modulation 45dB 40dB Adjacent Channel Power 70dB 60dB Spurious and Harmonic Wave 36dBm 1GHz 30dBm 1GHz RECEIVER Receiving Sensitivity 0 18uV...

Page 10: ...off the transceiver before step into the inflammable and explosive places z Don t transmit for a long time it may damage the transceiver or it may cause scald z Don t use the transceiver which antenn...

Page 11: ...for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields 3 kHz to 300 GHz American National Standards Institute C95 3 1992 IEEE Recommended Practice for the Measurem...

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