25W Wireless Audio Module VHF Voice Module 150MHz Wireless Walkie Talkie 10km Distance

25W Wireless Audio Module VHF Voice Module 150MHz Wireless Walkie Talkie 10km Distance

I: Features:

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, 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

IV: 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

Notes:

1. About the power supply.

This radio's power output is high to 25W. 12V power D.C., at least 8A is recommended to use. Please choose power D.C. with good fluctuation coefficient and anti-interference ability. If you use switch power supply, please keep the antenna far away from it to avoid antenna's inference.

2. About the antenna.

Please choose antenna compatible with your radio's frequency band. For long distance communication, directional and high gain antenna would help to reach better effects. And also, please try to mount antenna at higher level.

Antenna's and its cable's impedance should be accordance with radio's (50Ω). If not, whole unit's performance will be affected and it may damage the radio.

3. About antenna cable

Choose cable with 50Ω impedance and low decay material. Make sure it can be connected with radio and antenna successfully. Please also consider waterproof and lightning arrester.

4. Heat emission

If the radio needs to transmit for long time, please pay attention to transfer heat in time.