Digital Band selective 700+800+900+1800+2100+2600+3500MHz Repeater
| Frequency Support: | Banda28 700MHz Banda20 800MHz+ Banda8 900MHz+Banda 3 1800MHz+Banda1 2100MHz+Banda7 2600MHz+N78 3500- | Bandwith: | 0,2--20MHz ajustable para bandas FDD, 5--100MHz para banda TDD N78 |
| Max. Gain: | Enlace ascendente: 65±3 dB | Enlace descendente: 70 ± 3 dB | Output Power: | Enlace ascendente: 15±2 dBm | Enlace descendente: 17-20 dBm |
| Power Supply: | Las condiciones de las partidas 1 y 2 se aplicarán a las partidas 2 y 3. | Dimensions: | 350*268*58mm |
| Weight: | ≦ 12kg | 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 |
Digital Band28 700MHz + Band20 800MHz + Band8 900MHz + Band3 1800MHz + Band1 2100MHz + Band7 2600MHz + N78 3500MHz digital band selective repeater designed for public and private network applications.


The Digital Band Selective Repeater offers multiple application possibilities with its high output power, low interference, and fast implementation period. It adapts to complex urban RF networks and efficiently provides signal coverage to designated areas.
- Digital - Amplifies digital signals by converting to analog and then back to digital
| P/N: AT-2U-L7LGDWFN-20 | B20 | B8 | B3 | B1 | B7 | B28 | N78 |
|---|---|---|---|---|---|---|---|
| Frequency Range (MHz, adjustable) | |||||||
| Uplink | 832-862 | 880-915 | 1710-1785 | 1920-1980 | 2500-2570 | 703-748 | 3400-3600 |
| Downlink | 791-821 | 925-960 | 1805-1880 | 2110-2170 | 2620-2690 | 758-803 | 3400-3600 |
| Number of Sub-bands | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Bandwidth per Sub-band (MHz, adjustable) | 0.2-20 | 0.2-20 | 0.2-20 | 0.2-20 | 0.2-20 | 0.2-20 | 5-100 |
| Max. Gain (dB) | |||||||
| Uplink | 65±2 dB | 65±2 dB | 65±2 dB | 65±2 dB | 65±2 dB | 65±2 dB | 65±2 dB |
| Downlink | 70±2 dB | 70±2 dB | 70±2 dB | 70±2 dB | 70±2 dB | 70±2 dB | 70±2 dB |
| Manual Gain Control | 31 dB in step of 1dB | ||||||
| Automatic Gain Control | ≥20 dB | ||||||
| Gain Flatness (per sub-band) | ≤±2.5 dB (peak-to-peak) | ||||||
| Max. Input Power Without Damage | 0 dBm | ||||||
| Output Power (dBm) | |||||||
| Uplink | 10±2 | 10±2 | 10±2 | 10±2 | 10±2 | 10±2 | 10±2 |
| Downlink | 20±2 | 20±2 | 20±2 | 20±2 | 20±2 | 20±2 | 20±2 |
| 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 | ||||||
| Spurious Emission | 9KHz-1GHz ≤-36dBm 1GHz-12.75GHz ≤-30dBm | ||||||
| ACRR | ±10/20MHz ≤-36dBc/30KHz ±20/40MHz ≤-40dBc/30KHz | ||||||
| EVM | ≤8% | ≤8% | ≤8% | ≤8% | ≤8% | ≤8% | ≤3% |
| Frequency Stability | ≤±0.01 ppm | ||||||
| Noise Figure | ≤6dB | ||||||
| VSWR | ≤1.8 | ||||||
| System Delay | ≤6μs | ||||||
| RF Connector | N-Female | ||||||
| Impedance | 50Ω | ||||||
| Power Supply | Input: AC110~240V, 50/60 Hz; Output: DC24V/4.2A | ||||||
| Power Consumption | ≤300W | ||||||
| Dimensions | 480*350*88mm | ||||||
| Weight | ≤12kgs | ||||||
| IP Rating | IP30 | ||||||
| Operating Temperature | -10℃ to 60℃ | ||||||
| NMS | Local: Via Type-C/Wi-Fi App Remote: Via Cloud-based NMS (optional) | ||||||
- NSA/SA Support: Compatible with both Non-Standalone and Standalone 5G networks
- Accurate Synchronization: Built-in 5G base band synchronous detection module (SDM) ensures precise timing with the donor base station
- Multi-band support offers flexibility to meet various network demands
- Fine-grained control is achieved through individual sub-band activation/deactivation
- Intelligent algorithms effectively mitigate uplink interference
- Independent gain control further optimizes performance
- Self-control mechanisms minimize interference during new base station deployments
- NMS facilitates remote/local control and monitoring


Located in Guangming District Shenzhen, Shenzhen A T N J Communication is a professional RF manufacturer with 16 years of experience, primarily engaged 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, 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+monitoring, and are supplied to 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
