VHF Digital Repeater System 150MHz Digital Band Selective Repeater System for Customized Use
Digital VHF BDA Band Selective Repeater System
A VHF BDA Digital Repeater is a telecommunications device used to extend the coverage range of Very High Frequency (VHF: 30-300 MHz) digital radio communication systems.
Core Functions
- Signal Reception: Receives weak/attenuated digital radio signals (e.g., DMR, dPMR, P25 Phase 2) within the VHF band from user equipment (e.g., handheld radios)
- Digital Processing: Decodes, regenerates, and error-corrects the digital signal (unlike analog repeaters that amplify noise)
- 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 VHF 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
Features
- 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 |
VHF |
| Frequency Range |
Uplink(Rx): 150-153MHz (At least 5MHz Guard Bandwidth Between Uplink and Downlink) Downlink(Tx): 161-163MHz (At least 5MHz Guard Bandwidth Between Uplink and Downlink) |
| Bandwidth |
Customized |
| 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 |
| Weight |
≤ 12kg |
| Alarm Monitoring System |
Alarm for Uplink Self-Oscillation |
| Isolation Detection |
Isolation Check During Boot Time |
| Operating Temperature |
-10 to +50 °C |
| Application |
Indoor or Outdoor (IP65) |
| Relative Humidity Range |
≤95% (Non condensing) |
| Mounting |
Wall Mounting |
ATNJ Strength & Service
- Extensive Product Portfolios: We offer a wide range of products, ensuring that you have access to a diverse selection that meets your specific requirements
- High End Concept: Our relentless pursuit of the latest technology and our unwavering dedication to commercialization and massive production sets us apart
- Strong R&D Team: We boast a team of talented and highly skilled professionals who consistently push the boundaries of innovation
- Customized Product Development: With our exceptional ability to develop customized products in the industry, we ensure that the unique needs of our customers are met with the highest precision and efficiency
- Expert Solutions: A team of experts with 20 to 30 years of experience is committed to providing perfect solutions, specifically tailored to the challenges faced by our valued customers
- ISO/CE Certified Quality: Our commitment to excellence is underscored by the certification of our products, ensuring superior quality and reliability
Frequently Asked Questions
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/ODM 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.
Contact our support team for additional assistance.