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50km Wireless Audio Module Digital Audio Module 25w VHF / UHF Band For Transmitting Voice

I am pleased with them. It was a good choice for our small application. It is a robust device even it has a cheap price. I will use them in our further applications when we should use remote control. Thank you for your support.

—— Codreanu from Romania

Great news! We successfully performed the installation of the two units and transmitted our 4-20mA signal with both antennae. Even the smaller antenna suffices to transmit the signal without any losses whatsoever. So you can understand that we are very happy :) .

—— Kekarios from Greek

I believe you and your products. Sunny is very responsible. The RF modules are really strong and stable. Engineer's suggestions are useful to me. The most important is module's program can updrade on-line by myself. For some special projects, they can customize according my requirements. Thank you for your support all the time.

—— Singh from India

First of all I'd like to thank you for you're prompt service. The system now works perfectly. I left a positive response on your web site. I hope it attracts more customers for you.

—— Peter from Australia

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50km Wireless Audio Module Digital Audio Module 25w VHF / UHF Band For Transmitting Voice

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Large Image :  50km Wireless Audio Module Digital Audio Module 25w VHF / UHF Band For Transmitting Voice

Product Details:
Place of Origin: China
Brand Name: Lensen
Model Number: LS-DA25000
Payment & Shipping Terms:
Minimum Order Quantity: 2pcs
Price: Negotiation
Packaging Details: standard carton
Delivery Time: 2-7 days
Payment Terms: Western Union, T/T
Supply Ability: 6000pcs
Detailed Product Description
Power Output: 25W Transmit: Digital Audio
Chip: Lora Interface: RS232/RS485/TTL
Frequency: 150MHz Band Distance: 30km+
High Light:

digital audio module


audio transceiver module

50km Wireless Audio Module Digital Audio Module 25w VHF / UHF Band For Transmitting Voice





Main Features:

Digital voice/data transmission,voice is in priority.

Low noise, clear voice transmission.

With encryption, not easy to be decoded.

Support VHF(136MHZ-174MHZ,220-240MHZ)UHF(410MHZ-470MHZ) user programming.

With RS232&RS485 2 interface, ttl customized.

High receiving sensitivity up to -125dB.

50km-80km LOS long range transmission distance.

Over-the-air data rate 1200-4800bps settable by user, Serial data rate 1200-115200 settable by user

short transmitting-receiving transfer time, communication delay less than 3Ms.



Pin Definitions

Pins LS-DA25000 Remark
Airline Male Connector 1 Grounding of power supply  
2 DC12V power supply DC12V
DB9 Male Connector 1 PTT(Voice Transmitting Enable) Active Low Level
2 RS-232/RXD  
3 RS-232/TXD  
4 AGND(Analog Signal GND)  
5 GND  
6 RS-485/A  
7 RS-485/B  
8 MIC(MIC Signal Input)  
9 SP(Speak Output, 8Ohm 1W)  



Technical Parameters

Frequency Range 136-174MHz, 220-240MHz, 410-470MHz
Frequency stability 2.5PPm
Transmit Power 25W
Modulation GFSK/4GFSK
air Data Rate 1200-4800bps
Serial Data Rate 1200-115200bps
Interface RS232, RS485, TTL customized
Power Supply 12V@10A
Interface Data Format 8E1/8N1/801
Receiving Sensitivity -125dBm@1200bps
Channel Bandwidth 10KHZ@1200bps
Working Temperature -40-80 (industrial grade)
Working Humidity 10% to 90% relative humidity, no condensation
Emission Current 6A(Max Output Current is not less than 10A)
Receiving Current 80mA
Dimension(L/W/H) 86 X 45X 20mm
Weight(g) 500g




Channel (1234) 1 2 3
0(0000) 156.025MHZ 230.025MHZ 430.025MHZ
1(0001) 140.025MHZ 221.025MHZ 410.025MHZ
2(0010) 142.025MHZ 223.025MHZ 414.025MHZ
3(0011) 144.025MHZ 224.025MHZ 418.025MHZ
4(0100) 146.025MHZ 225.025MHZ 422.025MHZ
5(0101) 148.025MHZ 226.025MHZ 426.025MHZ
6(0110) 150.025MHZ 227.025MHZ 434.025MHZ
7(0111) 152.025MHZ 228.025MHZ 437.025MHZ
8(1000) 154.025MHZ 229.025MHZ 441.025MHZ
9(1001) 158.025MHZ 231.025MHZ 445.025MHZ
10(1010) 160.025MHZ 232.025MHZ 449.025MHZ
11(1011) 162.025MHZ 233.025MHZ 453.025MHZ
12(1100) 164.025MHZ 234.025MHZ 457.025MHZ
13(1101) 166.025MHZ 235.025MHZ 461.025MHZ
14(1110) 168.025MHZ 236.025MHZ 465.025MHZ
15(1111) 170.025MHZ 237.025MHZ 469.525MHZ



Marine Communication

water wells, water and waste water treatment monitoring system

Oil and gas production, pipeline monitoring, gas distribution, heat network monitoring

Power scheduling, distribution automation, load control

GPS positioning system, mobile data transmission

Vessel (UMV) monitoring and control, robot control data link

Army, police communications

Earthquake, meteorology, environmental protection and urban lighting control

Railway, transportation, metallurgy, chemical industry and industrial automation process control

Industrial remote control, telemetry, automated data acquisition system


50km Wireless Audio Module Digital Audio Module 25w VHF / UHF Band For Transmitting Voice 0

Contact Details
Shenzhen Qianhai Lensen Technology Co., Ltd

Contact Person: Sunny

Tel: +8613826574847

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