< 37dbm GSM and 3G Dual Band Booster/Repeater(DE37-GW) - Datacomm Express
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37dbm GSM and 3G Dual Band Booster/Repeater(DE37-GW)

Overview:   
     The DE20-GW dual system repeater is to support any two mobile systems GSM and 3G to help end users to improve mobile signals for better signal coverage. It is designed to support coverage area up to 4000 square meters with proper engineering. Below are the main features:
1. Intermediate SAW filter technology for very sharp out of band rejection to amplify only specific operators' signals and reject al l the others.
2. Manual gain control (MGC) available for both uplink and down link to adjust the gain value for proper coverage during installation or maintenance.
3. To maintain safe and specific output signal levels and give alarms on self-oscillation, the repeater has built-in AGC and ALC circuits, which can automatically control the gain of the repeater depending upon the strength of input signals.
4. Auto shut off design available for both uplink and downlink to avoid serious interference to network effectively when the repeater is in deep self-oscillation or very strong input power.
 5. Support one to four sub bands for each system.

   

Specifications:
 Electrical specification       Uplink     Downlink
 Frequency Range    890 ~ 915 MHz                                  935 ~ 960 MHz       
                                           1920 ~ 1980 MHz 2110 ~    2110 ~ 2170 MHz
   Max. Gain    ≥80dB    ≥ 85dB
 Max .Output Power       
≥ 30dBm    ≥ 37dBm   
       
 Band width (-3dB)        Wideband
 MGC    ≥ 31 / 1dB Step
 ALC                          ≥ 20dB
 Gain Flatness    ≤3~6dB(P-P)
 Noise Figure    ≤7dB
 VSWR    ≤2
 Group Delay    ≤5μs
 LED Alarm     Standard
 Power LED    Green light when power on.
 ALC LED    Orange @ ALC 1~5dB, Red @ ALC 20dB~25dB,
 Mechanical Specifications     Standard
 I /O Port    N-Female
 Impedance    50 ohm
 Operating Temperature    -25�C~+55�C
 Environment Conditions    IP40

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