37dbm GSM and 3G Dual Band Booster/Repeater(DE37-GW)
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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
1. Intermediate SAW filter technology for very sharp out of band
rejection to amplify only specific operators' signals and reject al l
2. Manual gain control (MGC) available for both uplink and down link to
adjust the gain value for proper coverage during installation or
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.
Frequency Range 890 ~ 915
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
Gain Flatness ≤3~6dB(P-P)
Noise Figure ≤7dB
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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