TETRA BDA
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The TETRA RF BDA (Bi-directional Amplifier) 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 band-selective function can amplify all signals in the whole band (bandwidth is customized).
Features
Application
Specifications
Features
- Aluminum-alloy casing with IP65 protection has high resistance to dust, water and corroding
- 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¡¯sworking status and download operational parameters to the BDA
Application
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Public Safety
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Transportation
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Utilities
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Government
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Military
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PAMR
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Commercial & Industry
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Oil & Gas
To expand signal coverage or enhance signal blind area where TETRA signal is weak or unavailable.
Technical specifictions
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Model |
AT7A43A |
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Working Frequency |
Uplink |
380~400 MHz (To be customized) |
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Downlink |
410~430MHz (To be customized) |
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Working Bandwidth |
5MHz (To be customized) |
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Maximum Input Power (Non-Destructive) |
10dBm |
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Output Power |
43 dBm |
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Gain |
¡Ý 85dB |
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Gain Adjustment Range |
1~31 dB @ step of 1 dB |
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Voltage Standing Wave Ratio |
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Noise Figure |
¡Ü 5dB |
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In-band Ripple |
¡Ü 3dB |
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Spurious Emission |
Within working band |
¡Ü -15dBm/30kHz |
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Out of working band (∆f > 2.5MHz) |
9kHz~1GHz: ¡Ü -36dBm/30kHz |
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1GHz~12.75GHz: ¡Ü -30dBm/30kHz |
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In-band Inter-Modulation Attenuation |
¡Ü -45dBc / 30kHz |
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System Delay |
¡Ü 1.5¦ÌSec |
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I/O Impedance |
50¦¸ |
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RF Connector |
N-Type (Female) / Changeable / bottom of casing |
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Temperature Range |
Operation: -25¡ãC~ +55¡ãC/ Storage:-30¡ãC~ +60¡ãC |
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Relative Humidity Range |
¡Ü 95% (non condensing) |
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Power Supply (customized) |
DC +24V / AC 220V¡À15% or AC 110V¡À15%, 50Hz |
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Power consumption |
¡Ü 180W |
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Backup Power Supply (optional) |
4 hours |
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Casing Level |
IP65 |
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Dimensions |
640mm X 400mm X 230mm |
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Weight |
35kg |
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Control Connector |
USB for local / remote |
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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, etc; Real-time status for output/input power, UL/DL gain, all status of BDA, etc. |
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