20dBm 700/1800MHz Digital band selective repeater Band adjustable repeater DCS Off-Air repeater
| Frequency Range: | Uplink: 1710-1785MHz, 703-748MHz | Downlink: 1805-1880MHz, 758-803MHz | Bandwith: | 0.2--30MHz Adjustable For Each Band |
| Max. Gain: | Uplink: 65±3 DB | Downlink: 70±3 DB | Output Power: | Uplink: 17±2 DBm | Downlink: 20±2 DBm |
| Power Supply: | DC5V6A | Dimensions: | 234*230*52mm |
| Weight: | ≦ 3kgs | Bands Support: | VHF, UHF, N71, N28, N5, N20, N8, N66, N3, N1, N40, N7, N78, N77, N79 |
| Network Protocols: | TETRA/P25/DMR/GSM/WCDMA/LTE/NR/WiFi |
Dual band 700/1800MHz digital band selective repeater designed for public and private network signal enhancement.
The Public/Private Network Repeater acts as a relay between the BTS (Public/Private Network) and mobile phones. It receives the strongest signal from the BTS via the donor antenna, amplifies the signal linearly, and then retransmits it to weak/dead zone coverage areas via the transmitting antenna distribution system. Mobile signals are also amplified and retransmitted to the BTS in the opposite direction.
According to different working principles, repeaters are divided into two types:
- Analog - Enhances signal strength by amplifying analog signals
- Digital - Amplifies digital signals by converting to analog and then back to digital
| Parameter | B3 (1800MHz) | B28 (700MHz) |
|---|---|---|
| Frequency Range (adjustable) | Uplink: 1710-1785MHz Downlink: 1805-1880MHz |
Uplink: 703-748MHz Downlink: 758-803MHz |
| Sub-bands | Uplink: 1710-1720MHz Downlink: 1805-1815MHz |
Uplink: 703-713MHz Downlink: 758-768MHz |
| Number of Sub-bands | 1 (customized) | 1 (customized) |
| Bandwidth (adjustable) | 30 MHz/0.2MHz | 30MHz/0.2MHz |
| Max. Gain | Uplink: 65 ±3 dB Downlink: 70 ±3 dB |
Uplink: 65 ±3 dB Downlink: 70 ±3 dB |
| Manual Gain Control | 31 dB in step of 1 dB | |
| Automatic Gain Control | ≥ 20 dB | |
| Gain Flatness (per sub-band) | ≤ ±3 dB (peak-to-peak) | ≤ ±3 dB (peak-to-peak) |
| Max. Input Power Without Damage | 0 dBm | |
| Output Power | Uplink: 17 ±2 dBm Downlink: 20 ±2 dBm |
Uplink: 17 ±2 dBm Downlink: 20 ±2 dBm |
| Out of Band Gain | 2,5 ≤ f_offset_CW < 5,0 MHz: ≤ 60 dB 5,0 ≤ f_offset_CW < 10,0 MHz: ≤ 45 dB 10,0 MHz ≤ f_offset_CW: ≤ 35 dB |
2,5 ≤ f_offset_CW < 5,0 MHz: ≤ 60 dB 5,0 ≤ f_offset_CW < 10,0 MHz: ≤ 45 dB 10,0 MHz ≤ f_offset_CW: ≤ 35 dB |
| Spurious Emission | 9KHz-1GHz: ≤ -36dBm 1GHz-12.75GHz: ≤ -30dBm |
|
| ACRR | ± 20/100MHz: ≤ -36dBc/30KHz ± 40/200MHz: ≤ -40dBc/30KHz |
± 20/100MHz: ≤ -36dBc/30KHz ± 40/200MHz: ≤ -40dBc/30KHz |
| EVM | ≤ 8% | ≤ 8% |
| Frequency Stability | ≤ ±0.01 ppm | ≤ ±0.01 ppm |
| Noise Figure | ≤ 6 dB | |
| VSWR | ≤ 2 | |
| System Delay | ≤ 4.5 µs | |
| RF Connector | N-Female | |
| Impedance | 50 Ω | |
| Power Supply | DC5V6A | |
| Power Consumption | ≤ 100W | |
| Dimensions | 234*230*52mm | |
| Weight | ≤ 3kgs | |
| IP Rating | IP40 | |
| Operating Temperature | -25°C to 55°C | |
| Control & Monitoring | Local: USB/Type-C port/WIFI (Optional) | Remote: LTE modem NMS/OMS system |
- Intelligent installation guidance with LCD display
- Real-time signal strength display
- Automatic dormancy when no calls are active
- Automatic alarm for installation errors with solutions
- Automatic system gain adjustment to prevent self-excitation
- Proactive damage notification
- Supports bandwidth adjustment from 0.2 to 30MHz (customized)
- Supports 5G bandwidth: 40MHz, 50MHz, 60MHz, 70MHz, 80MHz, 90MHz, 100MHz (customized)
- WiFi Monitor+Control (customized), NMS (network management system) - optional
Located in Guangming District, Shenzhen, Shenzhen ATNJ Communication is a professional RF manufacturer with 16 years of experience, specializing in R&D, production, manufacturing, sales, and technical services. Our main products include Digital LTE/NR series repeaters, SDR core boards, passive devices, Digital DAS systems, and technical solutions for Public and Private (VHF, Tetra) network base stations, along with wireless frequency modules.
We undertake OEM, ODM services and projects for various RF equipment, wireless repeaters, multi-frequency DAS systems, remote network management center OAM, and equipment provision for indoor and outdoor signal coverage projects.
Our digital repeaters now support up to 12 subbands simultaneously with local and remote control and monitoring, serving signal operators and communication integrators worldwide. We provide signal coverage solutions for residential areas, office buildings, supermarkets, basements, and rural areas.
Our mature digital band-selective repeaters have been successfully deployed in overseas mobile operator markets. Our product field is expanding to include Public Safety and Low Altitude Economic Construction applications, featuring Public and Private Network Digital Multi-subband Repeaters, wireless signal repeaters, Integrated Base Stations, civil countermeasures, and phased array radar technology.
We have also realized Digital fiber multi-frequency, UHF, Tetra, VHF, and Microwave frequency shift repeaters. As technology progresses, we continue to develop easier-to-use, more functional, and intelligent RF products. We look forward to collaborating with you to create a brighter future together.
Ready to elevate your next project? Our R&D team is here to help you succeed.
Get in touch today:
WhatsApp: +8618813582037
