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25W VHF Radio Modem 150MHz Audio Radio Marine Wireless Monitoring

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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25W VHF Radio Modem 150MHz Audio Radio Marine Wireless Monitoring

25W VHF Radio Modem 150MHz Audio Radio Marine Wireless Monitoring
25W VHF Radio Modem 150MHz Audio Radio Marine Wireless Monitoring 25W VHF Radio Modem 150MHz Audio Radio Marine Wireless Monitoring

Large Image :  25W VHF Radio Modem 150MHz Audio Radio Marine Wireless Monitoring

Product Details:
Place of Origin: China
Brand Name: Lensen
Model Number: LS-V25000
Payment & Shipping Terms:
Minimum Order Quantity: 2pcs
Price: Negotiation
Packaging Details: carton
Delivery Time: 3-7days
Payment Terms: T/T, Western Union
Supply Ability: 1000pcs/month
Detailed Product Description
Power Output: 25W Distance: 20km
Casing Material: Aluminium Frequency: 150MHz
Audio Type: Analog
High Light:

VHF Wireless Radio Modem

,

150MHz Wireless Radio Modem

,

25W Wireless Radio Module

25W VHF Radio Modem 150MHz Audio Radio Marine Wireless Monitoring

 

LS-V25000 25W power output radio modem. 

We support RS232, RS485 or TTL interface, you can choose one

It is OK to transmit data or Voice

For data transmission, its baud rate is 1200bps or 2400bps.

 

 

I: Features:

1. High power output: 25W

2. Long transmission distance: up to 20km

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

4. Data transmission, voice transmission both ok

5. Double PLL, double VCO, High reliability

6. VOX function

 

II. 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 )

 

E,Dimension:

128*108*28mm

 

III. Pin Definition

 

25W VHF Radio Modem 150MHz Audio Radio Marine Wireless Monitoring 0

 

 

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  
  RxD(A)

RxD of RS-232

RS-485 A

RS-232,RS-485,TTL, only one valid
  TXD(B)

TxD 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

 

 

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

25W VHF Radio Modem 150MHz Audio Radio Marine Wireless Monitoring 1

25W VHF Radio Modem 150MHz Audio Radio Marine Wireless Monitoring 2

Contact Details
Shenzhen Qianhai Lensen Technology Co., Ltd

Contact Person: Sunny

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