Mobile World Congress 2019
Product


Contact Us
Phone: +86-755-86238970
Fax: +86-755-26495994
Email: info@action-tek.net
Skype:action.technologies


TETRA Frequency Shift BDA
Location: Home > Product > TETRA BDA > TETRA BDA > TETRA Frequency Shift BDA
TETRA Frequency Shift BDA
TETRA Frequency Shift BDA
     

TETRA Frequency Shift BDA

AT7K40G/ AT7J43G


The TETRA Frequency Shift BDA (Bi-directional Amplifier) is designed to solve problems of weak mobile signal, which can expand more coverage than RF BDA and reduce investment for the areas where fiber optic or dedicated cable is not allowed.

The system consists of two parts: Donor Unit and Remote Unit. The Donor Unit receives the BS (Base Station) signal via open air RF transmission or direct coupler closed to BS, then converts it from the working frequency to the link frequency, and transmits the amplified signal to the Remote Unit that will reconvert the signal to the working frequency 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.

As per operator¡¯s requirement for link frequency, two types of FSR are available:

  • In-Band FS BDA: the link frequency is inside the working band
  • Out-of-Band FS BDA: the link frequency is out of the working band


Features

Application

Specifications

Features

    • Aluminum-alloy casing with IP65 protection has high resistance to dust, water and corroding
    • Best solution to eliminate mutual interference due to sharing the same frequency
    • No stringent isolation requirement for antenna installation
    • Easy to choose installation site
    • USB port provides a link to a notebook for local supervision or to the built-in wireless modem to communicate with the NMS (Network Management System) that can remotely supervise BDA¡¯s working status and download operational parameters to the BDA

Application

    To expand signal coverage or enhance signal blind area where TETRA signal is weak or unavailable.
    • Public Safety
    • Transportation
    • Utilities
    • Government
    • Military
    • PAMR
    • Commercial & Industry
    • Oil & Gas

     


Technical specifictions

 

Model

AT7K40G

AT7J43G

BDA

Donor Unit

Remote Unit

Working Frequency

Uplink

380~400 MHz (customized)

Downlink

410~430MHz (customized)

Link Frequency (customized)

380~400/410~430MHz

Max. Input Power (Non-Destructive)

10dBm

Transmission Distance

¡Ü 20km

No. of Channels (for channel shift)

4 Channels

Frequency Error

¡Ü 0.05ppm

Output Power

Uplink

Cable access

¡Ý 0dBm

¡Ý 33dBm

Downlink

40dBm (10W)

43dBm (20W)

Gain

Cable access

¡Ý 45dB

¡Ý 90dB

Gain Adjustment Range

1~31 dB @ step of 1 dB

Voltage Standing Wave Ratio

< 1.5

Noise Figure

¡Ü 5dB(only for uplink)

Spurious Emission

Within working band

¡Ü -15dBm/30kHz

Out of working band

(∆f > 2.5MHz)

9kHz~1GHz: ¡Ü -36dBm/30kHz

1GHz~12.75GHz: ¡Ü -30dBm/30kHz

In-band Intermodulation Attenuation

¡Ü -45dBc / 30kHz (measured under rated output power)

In-band Ripple

¡Ü 3dB

System Delay

¡Ü 10¦ÌSec

I/O Impedance

50¦¸

RF Connector

N-Type (Female) / Changeable / bottom of casing

Temperature Range

Operation:-25¡ãC~ +55¡ãC/ Storage:-30¡ãC~ +60¡ãC

Relative Humidity Range

¡Ü 95% (non condensing)

Power Supply (customized)

AC 220V¡À15%, 50Hz

Power consumption

¡Ü 200W

¡Ü 220W

Backup Power Supply (optional)

4 hours

Casing Level

IP65

Dimensions

690mm X420mmX260mm

Weight

33kg

35kg

NMS Monitoring Function

Real-time alarm for door status, temperature, power supply, LNA, VSWR, self-oscillation, etc;

Remote control such as turn on/off, increasing/decreasing output power, changing channel frequency, etc;

Real-time status for output/input power, UL/DL gain, all status of BDA , etc.

Back to Top