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Tetra Band-Adjustable Digital Repeater/ Digital 380MHz BDA System

Shenzhen Atnj Communication Technology Co., Ltd.
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Tetra Band-Adjustable Digital Repeater/ Digital 380MHz BDA System

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Brand Name : ATNJ

Model Number : DS-Tetra380-33

Certification : CE,ROHS,CCC,TUV,BV, ISO

Place of Origin : China

MOQ : 5Pcs

Price : USD+800+PCS

Payment Terms : T/T, Western Union,Paypal,Alibaba,Bank transfering.

Supply Ability : 1000+unit+per day.

Delivery Time : 45 work days

Packaging Details : Standard neutral packing

Type : Tetra repeater

380MHz Frequency Range : UL380-385MHz,DL390-395MHz

Gain : UL:80±2 dB,DL:85±2 dB

Output Power : UL: 20±2 dBm, DL:33±2 dBm

EVM : 8%

Noise Figure : 8dB

VSWR : ≤1.8

Power Supply : AC100/ 240V

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Digital Tetra band selective repeater system

Tetra Digital Repeater is a telecommunications device used to extend the coverage range of Very High Frequency (Tetra: 30–300 MHz) digital radio communication systems. Here’s a concise

Core Functions:
1. Signal Reception:
* Receives weak/attenuated digital radio signals (e.g., DMR, dPMR, P25 Phase 2) within the Tetra band from user equipment (e.g., handheld radios).
2. Digital Processing:
* Decodes, regenerates, and error-corrects the digital signal (unlike analog repeaters that amplify noise).
3. Signal Retransmission:
* Rebroadcasts the cleaned digital signal at higher power to distant or obstructed areas.

Key Advantages:
* Extended Coverage: Overcomes terrain obstructions (buildings, hills) and Tetra range limitations (~5–50 km line-of-sight).
* Signal Integrity: Regeneration prevents noise/error accumulation, maintaining voice/data quality.
* Spectral Efficiency: Supports digital modulation (e.g., TDMA), enabling multiple users on one frequency.


Feature
* Digital filtering supports adjustable bandwidth, each band supports three sub-bands.
* Each sub-band is turned on and off, and gain control is performed separately.
* Donor signal monitoring for easy optimization and troubleshooting
* Intelligent algorithm to prevent UL interference.
* Self-control to minimize interference for new rollout e-Node B.

Technical Specifications:

Items Specifications
System Tetra

Frequency Range

Uplink(Rx)

380-385MHz

Downlink(Tx)

390-395MHz

Bandwidth ≦ 20MHz/0.2MHz

Maximum Output

Power

Uplink 20±2dBm
Downlink 33±2dBm
Maximum Gain 80±3dB
AGC Range ≥20dB
Maximum Input power(Non-Destructive) ≤-10dBm
VSWR ≤ 2.4
System Delay ≤ 6 μs
I/O Impedance 50 Ω
Noise Figure ≤ 8dB

Spurious Emission

9kHz~ 1GHz: ≤ -36dBm
1GHz~ 12.75GHz:≤-30dBm
Third-order Inter-Modulation ≤ -40dBm
RF Connector 2*N-Female
Power Consumption ≤ 30W
Power Supply Input:AC100~ 240V, 50/60Hz
Dimensions 450*335*180mm mm
Weight ≤ 12kg
Alarm Monitoring System Alarm for Uplink Self-Oscillation
Isolation Detection Isolation Check During Boot Time
Operating Temperature -10 ~ +50 °C
Application Indoor or Outdoor(IP65)
Relative Humidity Range ≤95%(Non condensing)
Mounting Wall Mounting

Product Pictures

Tetra Band-Adjustable Digital Repeater/ Digital 380MHz BDA System

Tetra Band-Adjustable Digital Repeater/ Digital 380MHz BDA SystemTetra Band-Adjustable Digital Repeater/ Digital 380MHz BDA SystemTetra Band-Adjustable Digital Repeater/ Digital 380MHz BDA SystemTetra Band-Adjustable Digital Repeater/ Digital 380MHz BDA System

Tetra Band-Adjustable Digital Repeater/ Digital 380MHz BDA System

FAQ:

1. Are you trading company or manufacturer ? Could I use our own logo and label? We are the factory, with good trading service.

We provide OEM/OEM service.

2. Can I have a sample order? What is your MOQ?
Yes, we welcome sample order to test and check quality. MOQ is 1 for normal products.

3: Is it easy to set up your items?
Yes. We have a user manual and support technical support 24/7.

4. What is your warranty time?
We promise 3-year warranty for all products shipped from us. Man-made sabotage and natural factors are not within the scope of warranty.
5. What is our Certificates ?
We have CE, ROHS, CCC etc, certificates .

6. Please feel free to contact us if there are any other questions.


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