UHF Tetra 400MHz Repeater Fiber Optic Signal Amplifier BDA widely used in trunking communication systems

Stadium /Office /Highway/ Railway /Scenic/ Pier /Island/ Offshore / Urban/ road /Supermarket /Metro/ Rural /Suburban/ Hospital/ Campus /Mine /Oilfield /Tunnel
• mode:
• Product Category:VHF/UHF Repeater
• Power supply:AC 110VAC 220VDC-24V
• Frequency:UHF 400-470Mhz
  • Products Details
  • Company Profile
  • Introduction
  • Mainfeature
  • Application&scenarios
  • Specification
  • Parts/Warranty

The TETRA Fiber Optic BDA (Bi-directional Amplifier) is designed to solve problems of weak mobile signal in the place that is far away from the Base station (BS) and has fiber optic cable network underground.
The system consists of two parts: Donor unit and Remote unit. The Donor unit captures the BS signal via direct coupler and closed to BS, then converts it into optic signal and transmits the amplified signal to the Remote unit via fiber optic cable. The Remote unit will reconvert the optic signal into RF signal and provide the signal to the areas where network coverage is inadequate. And the mobile signal is also amplified and retransmitted to the BS via the opposite direction.
FOR is designed for both outdoor and indoor applications and the best suitable applications are for extending the coverage in large buildings (IBS), highways, tunnels and remote villages. FOR can be customized for single and multiple technologies.


A.The advantages of the repeater are :

  • Low cost compared to a BTS
  • Easy installation and use
  • High reliabilit

B.Hot Selling 3 Types Tetra/UHF BDA:

  • Tetra BDA Trunk Amplifier System
  • Tetra BDA Band Selective Repeater System
  • Tetra BDA Fiber Optic Repeater System



The Kingtone Repeater solution also allows :

  • to extend the signal coverage of a BTS in urban and rural
  • to fill the white areas in rural and mountainous areas
  • to insure coverage of infrastructure such as tunnels, shopping malls,
  • parking garages, office buildings, hangars companies, factories, etc ...





Donor Unit

Remote Unit

Working Frequency

Up link


Down link

420-425 MHZ

Maximum Input power (Non-Destructive)


Transmission Distance


Output Power





Cable access


Gain Adjustment Range

1~31 dB @ step of 1 dB

Voltage Standing wave ratio



Noise figure

<5dB (only for up link)

In-band Ripple


Spurious Emission


With in working band


Out of working band (f>2.5MHz)

9 kHZ~1GHz: <-36dBm/30kHZ

1 Ghz~12.75 GHz: <-30dBm/30kHZ

In-band inter-modulation attenuation

<-40 dBc/30kHZ(measured under rated output power)

System delay

<5 sec


Phase Distortion across bandwidth

<6.1o (RMS) and <24.5o (Peak)

Error vector magnitude (EVM)


I/O Impedance


RF connector

N-type (female)/Changeable/bottom of casing

Fiber Optic Light source

Laser unit (Wave length: 1310nm/1550nm)

Optical output power

>0dBm (1310nm)/>3dBm (1550nm)

Optical Receiver sensitivity


Temperature Range

Operation: 25oC ~+55oC/Storage: 30oC~+60oC

Relative Humidity Range

<95% (non-condensing)

Relative supply (customized)

DC+24V/AC 220V+15% or AC 110V+15%, 50Hz

■ Contact Us
Products: UHF Tetra 400MHz Repeater Fiber Optic Signal Amplifier
BDA widely used in trunking communication systems
Quantity needed:
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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!