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Lisheng LS-7500 User Manual

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Professional FM Transceiver
Thank you for purchasing the UHF FM transceiver. High strength materials and
quality components have been used in the manufacture of this two-way radio. It
is designed for industrial use to excel in tough environment. Li-ion battery
technology and high/low power switching are included in many features that
enhance performance and keep the transceiver compact and easy to operate.
Precautions:
Study this manual carefully to understand your transceiver well.
For safety reasons, it is important that the user is aware of and under
tends the potential hazards common to using any transceiver.
Don't operate the transceiver or replace the battery in an explosive
environment (dust, gas, fumes etc.).
Switch the transceiver off when filled gas or parked at a petrol station.
Don't open or modify the transceiver in any way.
Refer to a qualified technician for any service or repair.
Don't expose the transceiver to long period of direct sunlight, extreme hot
environment or surface.
Don't place the transceiver in excessively dusty, humid, wet and/or
unstable areas.
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Professional FM Transceiver
MAIN FUNCTIONS AND PEATURES
Conductible Output Power:3W±0.5
16 Semi-duplex Channels
16th Channel Scan
Speech Dial Function
Monitor Function
TOT (Time-out Timer)
Battery Save Function
Low Battery Alert Function
QT/DQT
Busy Channel Lock-out
Programmed By PC
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Summary of Contents for Lisheng LS-7500

  • Page 1 Professional FM Transceiver Professional FM Transceiver Thank you for purchasing the UHF FM transceiver. High strength materials and MAIN FUNCTIONS AND PEATURES quality components have been used in the manufacture of this two-way radio. It is designed for industrial use to excel in tough environment. Li-ion battery technology and high/low power switching are included in many features that Conductible Output Power:3W±0.5 enhance performance and keep the transceiver compact and easy to operate.

  • Page 2: Table Of Contents

    Professional FM Transceiver Professional FM Transceiver CONTENTS STANDARD ACCESSORIES Carefully unpack the transceiver. We recommend you to confirm the following STANDARD ACCESSORIES------------------------------------------------------4 items before discarding the packing If any item has missed or have been GUIDE OF BATTERY PACK CHARGING--------------------------------------5 damaged during shipment, please contact the suppliers immediately.

  • Page 3: Guide Of Battery Pack Charging

    Professional FM Transceiver Professional FM Transceiver charging is in progress. Charging outside this range may not fully charge the GUIDE OF BATTERY PACK CHARGING battery. Always switch off the transceiver equipped with a battery pack before charging. Using 1.Put the charger's cable to AC power's socket to the transceiver while charging its battery pack will interfere with correct charging.

  • Page 4: Install/Remove The Antenna

    Professional FM Transceiver Professional FM Transceiver Install/Remove The Antenna Install The Optional Speaker/Microphone To install the antenna, screw the antenna into the 1.Take out the jack cover from transceiver (See pic.1). connector on the top of the transceiver by holding the 2.Insert the speaker/microphone plugs into the antenna at its base and turning it clockwise until secure.

  • Page 5: Overview

    Professional FM Transceiver Professional FM Transceiver BASIC OPERATION OVERVIEW Power Switch/Volume Switch on the transceiver by turning the Power Switch/ Control: Antenna Volume Control clockwise. Turn clockwise to turn ON the transceiver. Turn A beep sounds. Indicator Red light whil counterclockwise until a Adjust the volume by pressing and holding the Monitor transmitting a signal.

  • Page 6: Monitor Function

    Professional FM Transceiver Professional FM Transceiver conveniently. you can set up the time level:off, 30s, 60s, 90s,..300S. The unit is second. Battery Save Function Monitor Function The battery save function decreases the amount of power used when a The squelch circuit on the transceiver mutes the speaker automatically, signal is not being received and no operations are being performed (no when no signals are present.

  • Page 7: 16Th Channel Scan

    Professional FM Transceiver Professional FM Transceiver TROUBLESHOOTING GUIDE Although using channels set up with QT/DQT tones relieves you from listening to unwanted calls, it does not mean your calls will be private. Problem solution The battery pack may be dead. Recharge or 16th channel Scan replace the battery pack.

  • Page 8: Standard Technical Specification

    Professional FM Transceiver Professional FM Transceiver STANDARD TECHNICAL SPECIFICATION QT FREQUENCIES TABLE (Hz) General Frequency Range 450-470MHz Channels 16 channels Channel Spacing 25 KHz Working Voltage 7.2DC±20% Operating Temperature Range -25℃-+60℃ Dimension(W×H×D) 58×115×31mm(not include antenna) Weight(approx.) 180g(include battery) DQT CODES TABLE Receiver Sensitivity(12db SINAD) ≤0.2uv...

  • Page 9: Warning

    Professional FM Transceiver Professional FM Transceiver ♦The accessories are authorized for use with this product. Use of accessories Warning: other than those (listed in the instruction) specified may result in RF exposure Changes or modifications to this unit not expressly approved by the levels exceeding the FCC requirements for wireless RF exposure.
  • Page 10 Professional FM Transceiver Occupational/Controlled Use The radio transmitter is used in situations in which persons are exposed as consequence of their employment provided those persons are fully aware of the potential for exposure and can exercise control over their exposure. - 19 -...

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