ShenZhen Necom Telecommunication Technologies Co,.ltd
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Model :GSM/3G Tri-Band Repeater

Product Overview:

GSM900 MHz&1800Mhz&3G(UMTS)2100Mhz Tri-Band Signal repeater kit  TE-91821B Works in all countries and covers GSM900/1800 /3G(UMTS)2100Mhz networks .its  includes everything you need to improve cellular reception of voice and data inside your home or office.

1)Covers 300 to 500 square Meter.
2)Improves all Cellular 900 MHz/1800Mhz/2100Mhz sub bands.
3)Completely wireless - no need to connect to your phone to improvereception.
4)Easy to install and simple to use.

Standard Kit Contents:
1PCS GSM/DCS/3G-Tri- Band amplifier base unit and fixtures , AC Power Adapter (110V - 240V AC)
1 Pcs External antenna
1 Pcs Internal antenna
15 meter cable (10 m External, 5m Internal) With N Male Connectors
Remarks:enquriy us if you have special request

There is an external directional antenna that should be installed outside your home or office, which is used to communicate with the cell phone tower. Then, the signal booster part amplifies the signal and rebroadcasts the improved cell signal throughout the area in which it is installed. This kit is designed for easy installation with no experience required


1)High system gains.
2)Full duplex and double-end design, external power supply, and convenient installation.
3)ALC technology with auto-steady function adopted.
4)Provide power indication and uplink and downlink indications.
5)With the amplified linear power, the intermodulation and spuriousness are suppressed effectively.
6)The reliability conforms to GB6993-86 standards.
7)The electromagnetic compatibility conforms to ETS300 609-4 standards

Technical Specifications:
Frequency: Cellular GSM900 MHz /1800Mhz /2100Mhz Band
Uplink GSM 890-915MHz DCS1710-1885MHz/3G:1920-1980Mhz
Downlink GSM925-960MHz  DCS1805-1880MHz/3G:2110-2170Mhz

Gain:GSM/DCS/3G:Uplink 50dB  Downlink 55dB (not including antenna gain)
Output Power  10dBm
 Pass Band Ripple ≤4dB
Guard Band Rejection(BW-60dB)≤42MHz ,(BW-70dB)≤45MHz
I/O Impedance    50Ω/N Connector
I/O Return loss    ≤-10dB
Noise figure    ≤-8dB
IntermodulationAttenuation(Po=13dBm)    ≤-40dBc
Transmission Delay    ≤0.5μs
Ambient Temperature    -10℃~50℃
Power supply    AC110~220V±10% 45~55Hz
Size    320mm×250mm×65mm
Reliability    To the GB6993-86 standard
Electromagnetic Compaibility     To the ETS300 694-4 standard
Function   a) Power supply LED denote b) Export power LED denote 
Order Information

Repeater GSM900&1800&2100Mhz Tri- Band -TE-91821B :Outpower 10dBm/Gain 50dB/Cover-Max 300-500m2


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