Channel Selective TETRA BDA
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Channel Selective TETRA BDA
Channel Selective TETRA BDA
     

Channel Selective TETRA BDA

AT7A43H

 



 The TETRA BDA is designed to provide a more cost-effective solution than adding a new Base Station (BS) to improve signal coverage and communication quality in TETRA system. And its easy installation and maintenance can help carrier get fast return.

The BDA is working as a relay between the BS and mobiles. It receives the low-power signal from BS via the Donor Antenna, linearly amplifies the signal and then retransmits it via the Coverage Antenna to the weak/blind coverage area. And the mobile signal is also amplified and retransmitted to the BS via the opposite direction.

The channel-selective function can amplify only the signals transmitted by the customized 1 (2 or 4) channel.



Features

Application

Specifications

Features

    • Aluminum-alloy casing with IP65 protection has high resistance to dust, water and corroding
    • Highly selective channel selector can process 4 channels simultaneously
    • No interference to BS by adopting linear amplifier with high gain and low noise
    • Adopting filter with highly selectivity and low insertion loss eliminates interference between uplink and downlink
    • 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

AT7A43H

Working Frequency

Uplink

380~400 MHz (customized)

Downlink

410~430 MHz (customized)

Working Bandwidth

5MHz (customized)

Maximum Input Power (Non-Destructive)

10dBm

Output Power

43 dBm

Gain

¡Ý 85dB

Gain Adjustment Range

1~31 dB @ step of 1 dB

Voltage Standing Wave Ratio

< 1.5

Noise Figure

¡Ü 5dB

In-band Ripple

¡Ü 3dB

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 Inter-Modulation Attenuation

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

System Delay

¡Ü 5¦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)

DC +24V / AC 220V¡À15% or AC 110V¡À15%, 50Hz

Power consumption

¡Ü 180W

Backup Power Supply (optional)

4 hours

Casing Level

IP65

Dimensions

640mm X 400mm X 230mm

Weight

35kg

Control Connector

USB for local / remote

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.

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