Shenzhen Atnj Communication Technology Co., Ltd.
| 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 |
| Brand Name | ATNJ |
| Model Number | DS-Tetra380-33 |
| Certification | CE,ROHS，CCC，TUV,BV， ISO |
| Place of Origin | China |
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Product Specification
| 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 |
| Brand Name | ATNJ | Model Number | DS-Tetra380-33 |
| Certification | CE,ROHS，CCC，TUV,BV， ISO | Place of Origin | China |
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 | |
FAQ:
1. Are you trading company or manufacturer ? Could I use our own logo and label? We are the factory, with good trading service.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Seller
Year Established:
2010
Total Annual:
7500000-8000000
Employee Number:
95~105
Ecer Certification：
Verified Supplier
Shenzhen ATNJ Communication Technology Co.,LTD--Lead the future, connecting the infinite. Shenzhen ATNJ Communication Technology Co.,LTD is located in Shenzhen, Silicon Valley, China. We committed to the R&D, production and sales of low-altitude econ... Shenzhen ATNJ Communication Technology Co.,LTD--Lead the future, connecting the infinite. Shenzhen ATNJ Communication Technology Co.,LTD is located in Shenzhen, Silicon Valley, China. We committed to the R&D, production and sales of low-altitude econ...
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