VHF BDA Bi-directional amplifier

Stadium /Office /Highway/ Railway /Scenic/ Pier /Island/ Offshore / Urban/ road /Supermarket /Metro/ Rural /Suburban/ Hospital/ Campus /Mine /Oilfield /Tunnel
• mode:UHF BDA Bi-directional amplifier
• Product Category:VHF/UHF Repeater
• Power supply:AC 110VAC 220VDC -48VDC-24V AC 240
• Frequency:
  • Products Details
  • Company Profile
  • Introduction
  • Mainfeature
  • Application&scenarios
  • Specification
  • Parts/Warranty

 UHF BDA Bi-directional amplifier uhf walkie talkie power amplifier
  Kingtone Bi-Directional Amplifiers system is designed to solve problems of weak mobile signal, which is much cheaper than adding a new Base Station (BTS). Main operation of RF Bi-Directional Amplifiers system is to receive low-power signal from BTS via radio frequency transmission nd then transmit the amplified signal to the areas where network coverage is inadequate. And the mobile signal is also amplified and transmitted to the BTS via the opposite direction.


UHF BDA Bi-directional amplifier uhf walkie talkie power amplifier Main Features                              

1. High isolation full duplex design, easy to install.
2. Low noise figure, high receive sensitivity.
3. With ALC and MLC function to ensure stable output power.
4. Low power consumption, environmental protection and energy saving.
5. Modular structure design, easily to upgrade the system.
6. High Q cavity filter and SAW surface acoustic wave filter, high out of band rejection.
7. Adopt the world's most advanced high linearity, low intermodulation LDMOS power amplifier.
8. Adopt the advanced digital PLL, TCXO, OCXO technology, frequency stability and high accuracy.
9. Perfect remote and local network monitoring function.
10. Waterproof design work for all weather indoor and outdoor.




UHF BDA Bi-directional amplifier uhf walkie talkie power amplifier Applications
    To expand signal coverage of fill signal blind area where signal is weak  
or unavailable.
   Outdoor: Airports, Tourism Regions, Golf Courses, Tunnels, Factories, Mining Districts, Villages etc.
   Indoor: Hotels, Exhibition Centers, Basements, Shopping
Malls, Offices, Packing Lots etc.
It is mainly applicable to such case:
    The repeater can find an installation place which can receive pure BTS signal at strong enough level as the Rx Level in repeater site should be more than ‐70dBm;
    And can meet the requirement of antenna isolation to avoid self‐oscillation.


Technical Specifications  


Testing Condition





Working Frequency(MHz)

Nominal Frequency


158-162 MHz

The frequency can be specified by customer


Nominal Band




Nominal Output Power-5dB



Output Power (dBm)

modulating signal




ALC (dBm)

Input Signal add 20dB



Noise Figure (dB)

Working in-band(Max. Gain)



Ripple in-band (dB)

Nominal Output Power -5dB



Frequency Tolerance (ppm)

Nominal Output Power



Time Delay (us)

Working in-band



Gain Adjustment Step (dB)

Nominal Output Power -5dB



Gain Adjustment Range(dB)

Nominal Output Power -5dB



Gain Adjustable Linear(dB)


Nominal Output Power 5dB




Nominal Output Power -5dB




Nominal Output Power -5dB



Inter-modulation Attenuation (dBc)

Working in-band



Spurious Emission(dBm)












BS/MS Port



I/O Port






Operating Temperature

-25°C  +55°C


Relative Humidity

Max. 95%



Min. 100000 hours


Power Supply

DC-48V/AC220V(50Hz)/AC110V(60Hz)( ±15%)


Remote Monitoring Function

Real-time alarm for Door Status, Temperature, Power Supply, VSWR, Output Power


Remote Control Module

RS232 or RJ45 + Wireless Modem + Chargeable Li-ion Battery

12 month warranty for repeater equipment ,
6months for accessories of repeater
■ Contact Us
Products: UHF Tetra 400MHz Repeater Fiber Optic Signal Amplifier
BDA widely used in trunking communication systems
Quantity needed:
■ Solution&Application
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  • *Model : KTWTF-11180-2.6V
    *Product Category : 11dBi half the vertical polarization slot antenna

  • *Model :
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  • *Model : KT-GWY23
    *Product Category : Professional wireless communication equipment 3g gsm/wcdma 2100mhz signal booster repeater

Kingtone was established in 2006, located in Microwave Communication Base of the National Torch Plan in Quanzhou, China. It is a leading manufactor specializing in microwave communication equipment field and dedicated to R&D,manufacture,salses and services of microwave passive and active components, softwares of radio stations, communication monitoring and internetwork products.

Kingtone heavy invest to R&D, innovation, quality control system to win good products and good brand reputation. We have achieved seven software copyright certificates registered by the State Copyright Bureau and passed the ISO9001:2008 quality management system. Four Brands have been registered by the State Trademark Bureau and we have been recognized as "innovative and high technology enterprises " by Fujian Science and Technology Department in 2010. Our products are widely used in mobile communication, radio and television, public security, fire control, railways, electric power, mining and other fields; the main products are GSM repeater, CDMA repeater, CDMA450 repeater, IDEN repeater, TETRA repeater ,DCS repeater, PCS repeater, PHS repeater, TD-SCDMA repeater, WCDMA repeater, FDD-LTE repeater,TDD-LTE repeater,WiMAX repeater, MMDS repeater,MUDS repeater, digital TV repeater, VHF/UHF repeater for DMR/dPMR/TETRA/PDT system.

Kingtone insists on the spirit of “people-oriented, technology first, unity and strive, innovation and dedication” and the quality concept of “golden quality win the world” to continuously provide superior quality products and services to our customers.

We are sincerely willing to cooperate with you. let’s win the future together!