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25 Watt Wireless Data Modem 150MHz Marine Radio 20km Serial Data Transfer VHF

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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25 Watt Wireless Data Modem 150MHz Marine Radio 20km Serial Data Transfer VHF

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Large Image :  25 Watt Wireless Data Modem 150MHz Marine Radio 20km Serial Data Transfer VHF

Product Details:
Place of Origin: China
Brand Name: Lensen
Model Number: LS-V25000
Payment & Shipping Terms:
Minimum Order Quantity: 2pcs
Price: Negotiation
Packaging Details: standard carton
Delivery Time: 2-6 days
Payment Terms: T/T, Western Union
Supply Ability: 6000pcs/month
Detailed Product Description
Frequency: 150MHz/230MHz Power Output: 25W
Distance: 20km Interface: RS232/RS485/TTL
Transmit: Serial Data Application: Marine
High Light:

wireless on off module


wireless cable transmitter

25W Wireless Data Modem 150MHz Marine Radio 20km Data Wireless transfer VHF​


General Introduction

To transmit serial data or voice

VHF band 150MHz or 230MHz

UHF band

Please indicate when you place order

Serial port RS232 or RS485, TTL

Control distance 20km


Application of LS-V25000

Salvage, Marine control

public traffic

industrial automatic control

electric power schedule

water conservancy monitor

signal collection and transmission of railway system

oil extraction and transportation control

measure of oil or water wells

hydrological monitoring

weather station monitoring

forest protection

intelligent building

geological reconnoiter

mobile location

military training



Power output: 25W
Distance: 20km
Baud rate: 1200/2400 programmable
Channel Space: 12.5KHz
Bandwidth: <25KHz
Receiving Sensibility -114dBm@1200bps, -107dbm(9600bps)
Compatible with
LS-V series
Power Supply: 12V DC (default)
Transmitting current: <6A
Receiving current: <160mA
Sleep current: <1mA
Modulation: MSK
Frequency: 150MHz or 230MHz
Data format: 8N1, 8EI, 8O1 programmable, or other customize
Channel No.: Written by software



1. High power output: 10W or 25W

2. Long transmission distance: up to 20km

3. VHF band 150MHz band or 230MHz band or 450MHz

4. Data transmission

5. Double PLL, double VCO, High reliability



Data sheet

A,General Index

● frequency:VHF and UHF frequency band (150MHz, 230MHz), can store about 400 channels

● frequency tolerance:±2.5ppm

● Channel spacing:25 KHz

● antenna impedance:50Ω

● environment temperature:-35 ℃~+75 ℃

● modulate mode:MSK

● air baud rate:1200bps/2400bps


B,Receiver Index

● sensitivity: ≤0.25uV

● ignal Noise Ratio(SNR): ≤-50dB

● Adjacent Channel Selectivity: ≥70dB

● Inter modulation interference: ≥70dB

● Spurious respouse immunity: ≥70dB


C,Transmitter Index

● Transmit Power: 25W

● modulate distortion: ≤3%

● residual frequency modulation: ≤-48dB

● frequency deviation: ≤5KHz

● ortho-channel power ratio: ≤-70dB

● stray power: ≤5uW

● RF distance: 20km(25W RF power in the open air)


D,Power supply

● DC: 12 V (±10%)

● waiting current: ≤ 1 6 0 m A

● transmitting current: ≤ 6 A ( transmit power 25W )





Pin Definition

Connector Pin No. Pin name Description Remarks
Power connection VCC DC:12V

Please use power

DC 12V, more than 8A

  GND Ground of power supply  
Signal connection TTL(TxD) TxD of TTL  

TxD of RS-232

RS-485 A

RS-232,RS-485,TTL, only one valid

RxD of RS-232

RS-485 B

RS-232,RS-485,TTL, only one valid
  TTL(RxD) RxD of TTL  
  GND Signal ground  
  PTT Audio transmitting enable Low level is for transmitting
  MIC Audio signal input Microphone input,modulation sensitivity 10mV
  SP Audio signal output Audio amplifier output 8ohm 0.5W
  SQ Receiving signal checking Receiving carrier signal, high level





25 Watt Wireless Data Modem 150MHz Marine Radio 20km Serial Data Transfer VHF 0

Contact Details
Shenzhen Qianhai Lensen Technology Co., Ltd

Contact Person: Sunny

Tel: +8613826574847

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