Guangdong, China
Business Type:
Registered Capital:
1000000 HKD
Plant Area:
501~1000 square meters
Management System Certification:
ISO 9001
Average Lead Time:
Peak season lead time: one month
Off season lead time: within 15 workday
OEM/ODM Service

Cellular Amplifier, Amplifier 900 MHz, Repeaters 900 manufacturer / supplier in China, offering 20dBm 70dB GSM 900MHz Band Selective Cellular Amplifier, 23dBm 75dB Mobile Signal Booster Five Band, 50W 500MHz to 2500MHz GaN Solid State Broadband Power Amplifier and so on.

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Supplier Homepage Products Band Selective Repeater 20dBm 70dB GSM 900MHz Band Selective Cellular Amplifier

20dBm 70dB GSM 900MHz Band Selective Cellular Amplifier

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Min. Order: 1 Piece
Port: Shenzhen, China
Production Capacity: 1000PCS/Month
Payment Terms: T/T, Western Union
Type: Signal Repeater
Transmission Medium: Cable
Standard: Standard
Lightning Protection: With Lightning Protection
Certification: ISO, RoHS, CE
Condition: New

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Basic Info

Model NO.: ET-BRG20S-F
Band: GSM/Lte
Weight: 3.5kg
Output Power: 20dBm
Gain: 70dB
Trademark: etenda
Transport Package: Carton
Specification: 270*190*55
Origin: China
HS Code: 8517611010

Product Description

20dBm 70dB GSM 900MHz Band Selective Cellular Amplifier
Certification CE0700 and RoHS


ET-BSG20S-F model can support GSM  Band selective system. The bandwidth can be customized in the frequency range.


1.Elegant and Compact design,good isolation and heat dissipation for long time operation.

2.Built-in AGC and ALC circuits, which can automatically control the gain of the repeater depending upon the strength of input signals.

3.31dB MGC(Manual gain control) 1dB one step available for both uplink and downlink to adjust the gain value for proper coverage during installation or maintenance.

4.Limit output power for both uplink and downlink to avoid deep self-oscillations from interference BTS.

5.Wide input power range,low power consumption.

6.With good IMD3,it can have more antennas for covering without affect towers.

7.High linear design,the intermodulation and and spuriousness are suppressed effectively.

RF Repeater Typical Application
20dBm 70dB GSM 900MHz Band Selective Cellular Amplifier

Product specification
Electrical specification UplinkDownlink 
Frequency RangeGSM900890~900MHz935~945 MHzCan be customized
Passband RippleGSM/DCS≤2dB
Max .Gain ≥65dB  ≥70dB
Out of Band Gain (GSM,DCS)±600KHz≤ 40dB≤ 40dB
±1MHz≤ 35dB≤ 35dB
±1MHz≤ 35dB≤ 35dB
±5KHz≤ 25dB≤ 25dB
MGC(Step Attenuation) 31dB / 1dB step
Automatic Level Control                               ≥ 30dB
Max .Output Power ≥13dBm ≥20dBm
Input Power-30dBm(Max) : Operating-30dBm(Max) : Operating
0dBm(Max) : Absolute0dBm(Max) : Absolute
Noise Figure≤ 8dB
Intermodulation (GSM,DCS)9KHz~1GHz  ≤ -36dBm≤ -20dBm
1GHz~12.75GHz ≤ -30dBm≤ -20dBm
Spurious Emission9KHz~1GHz  ≤ -36dBm≤ -36dBm
1GHz~12.75GHz ≤ -30dBm≤ -30dBm
V.S.W.R≤ 1.5
Group Delay≤ 5μs
Frequency stability≤ 0.01ppm
Power Consumption≤10WATT
CoolingHeatsink Convection cooling
MTBF100,000 Hrs
RF CharacterComply with ETSI EN 300 609 -4
EMCComply with ETS 301 489 - 1
SafteyComply with EN 60 950
LED  AlarmStandard
Power LEDGreen @ Normal work
ALC LEDRed @ ALC 1dB~31dB
Mechanical  SpecificationsStandard
I /O PortN--Female
Impedance50 ohm
Operating Temperature-10ºC~+40ºC
Environment ConditionsIP40
Weight≤ 4KG
Power SupplyInput AC90~264V,output DC9V / 5A


1). Q: Does OEM & ODM order available?

    A: Yes, customer's Logo or design is available;

2). Q: What is the product warranty?

    A: One year warranty offered for ETENDA products.

3). Q: How long can I get the products?

    A: Normally 10-15 days for production, depends on order quantity.

4). Q: What is the delivery method?

    A: Multiple delivery method for selection, by air, land, sea or expression courier.

5). Q: What type of system can you support?

    A: System like GSM / CDMA / DCS / WCDMA / TETRA / LTE Wireless Full Band Repeater, Fiber Optic Repeater, Frequency Shifting Repeater, Digital / Analog Repeater, Trunk Amplifier

6). Q: What 's output power can you support?

    A: indoor models can support 10/15/20/23/27/30dbm
        outdoor models can support 33/37/40/43 dbm

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