700/1800/2100MHz tri-band repeater designed for public and private network applications, providing enhanced mobile signal coverage for home and office environments.

| Parameter | B3 (1800MHz) | B1 (2100MHz) | B28 (700MHz) |
|---|---|---|---|
| Frequency Range | Uplink: 1710-1785MHz Downlink: 1805-1880MHz |
Uplink: 1920-1980MHz Downlink: 2110-2170MHz |
Uplink: 703-748MHz Downlink: 758-803MHz |
| Bandwidth | 75MHz | 75MHz | 35MHz |
| Max. Gain | Uplink: 75±3 dB Downlink: 85±3 dB |
Uplink: 75±3 dB Downlink: 85±3 dB |
Uplink: 75±3 dB Downlink: 85±3 dB |
| Output Power | Uplink: 20±2 dBm Downlink: 27±2 dBm |
Uplink: 20±2 dBm Downlink: 27±2 dBm |
Uplink: 20±2 dBm Downlink: 27±2 dBm |
| Frequency Band | Downlink (Tx) | Uplink (Rx) | Output Power |
| VHF | 136-174MHz | 136-174MHz | 27dBm |
| UHF | 450-512MHz | 450-512MHz | 27dBm |
| N71: 600MHz | 617-652MHz | 663-698MHz | 27dBm |
| N28: 700MHz | 758-803MHz | 703-748MHz | 27dBm |
| N5: 850MHz | 869-894MHz | 824-849MHz | 27dBm |
| N20: 800MHz | 791-821MHz | 832-862MHz | 27dBm |
| N8: 900MHz | 925-960MHz | 880-915MHz | 27dBm |
| N66: AWS | 2110-2170MHz | 1710-1770MHz | 27dBm |
| N3: 1800MHz | 1805-1880MHz | 1710-1785MHz | 27dBm |
| N1: 2110MHz | 2110-2170MHz | 1920-1980MHz | 27dBm |
| N40: 2300MHz | 2300-2400MHz | 2300-2400MHz | 27dBm |
| N7: 2600MHz | 2620-2690MHz | 2500-2570MHz | 27dBm |
| N41: TD2600+ | 2496-2690MHz | 2496-2690MHz | 27dBm |
| N78: 3500MHz | 3300-3800MHz | 3300-3800MHz | 27dBm |
| N77: 4000MHz | 3800-4200MHz | 3800-4200MHz | 27dBm |


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 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