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Shenzhen Etenda Technology Limited

Dual Band Repeater, 27dBm 900, Signal Booster manufacturer / supplier in China, offering 20W 95dB Outdoor GSM Dcs Dual Band Repeater Bda, UHF400m 50W RF Power Amplifier, UHF 400m 100W RF Power Amplifier and so on.

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Supplier Homepage Product Outdoor Repeater 20W 95dB Outdoor GSM Dcs Dual Band Repeater Bda

20W 95dB Outdoor GSM Dcs Dual Band Repeater Bda

FOB Price: Get Latest Price
Min. Order: 1 Piece
Port: Yantian, China
Production Capacity: 500PCS/Month
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: ET-CRGD20WD-F
  • Transmission Medium: Cable
  • Lightning Protection: With Lightning Protection
  • Condition: New
  • Product Weight: 25kg
  • Vswr: 1.5
  • Group Delay: 1.5us
  • Noise Figure: 5dB
  • RF Connector: N-Female
  • Transport Package: Carton or Wooden Case
  • Origin: Shenzhen
  • Type: Signal Repeater
  • Standard: Standard
  • Certification: ISO
  • Product Size: 54X36X23cm
  • Relative Humidity: <95%
  • Power Supply: 110/220VAC
  • Inband Flatness: 3dB
  • Three Order Intermodulation: <-45dbc
  • Trademark: etenda
  • Specification: CE, ROHS
  • HS Code: 8517611010
Product Description
20W 95db Outdoor GSM DCS Dual Band Repeater BDA

We can also make other dual band repeater as customer,feel free to contact us for your requirement!

Introduction

RF Repeater is designed to enhance cellular network coverage and fill blind spots. Main operation of the repeater

is to receive low-power signal from Base Station (BS) via radio frequency (RF) transmission by its donor antenna,

process, amplify and forward the signal to Mobile Station (MS) in target coverage area by its service antenna.


Features

1.Aluminum alloy enclosure for excellent heat dissipation,waterproof design for all-weather installation;

2.Metal cavity filter technology inside, which gives wider receiving and sending separation, better gain flatness, higher stability, and lower noise figure;

3.Modules structure,full-duplex & dual-port design, and built-in power supply,easy for maintenance and installation;

4.High linearity PA; high system gain;

5.Allowing for continuous gain adjustment 31dB by 1dB step;

6.ALC technology used to provide auto amplitude fixing;

7.Press-key , Local PC GUI operation and Optional Remote Modem control.


RF Repeater Typical Application
20W 95dB Outdoor GSM Dcs Dual Band Repeater Bda
Specifications
 
ProjectUplinkDownlink
Working FrequencyGSM900880 ~ 915 MHz935 ~ 960 MHz
DCS1710 ~ 1785 MHz1805 ~ 1880 MHz
Frequency Error≤±0.5ppm
Output  Power33dBm40dBm
Gain85dB90dB
In-Band RippleGSM≤3dB
DCS≤5dB
WCDMA≤5dB
VSWR≤1.5:1
Three order intermodulation≤-45dBc/30KHz
Gain adjustment accuracy0-10dB≤1dB
10-20dB≤1dB
20-30dB≤1.5dB
System Delay≤1.5us
Rejection bandFo±0.4MHz≤-25dBm
Fo±0.6MHz≤-35dBm
Fo±1MHz≤-48dBm
Spurious Emission9KHz~150KHz≤-36dBm/10KHz
150KHz~30MHz≤-36dBm/100KHz
30MHz~1GHz≤-36dBm/100KHz
1GHz-12.75GHz≤-30dBm/1MKHz
Noise Figure≤5dB
I/O Impedance50Ω
RF ConnectorN-Type (Female)
Frequency error≤±5×10¯8
ReliabilityTo the GB6993-86 standard
Electromagnetic compatibilityTo the ETS200300 694-4 standrd
PowerAC110V or AC220V
Temperature Range-25ºC~+65ºC
Relative humidity≤95%
Size540X360X230mm
Weight25kg
Operation ConfigurationLCD Display, Manual Key-press, PC RS232 Port
GSM MODEM (Optional)
Ethernet RJ45 (Optional)
 
Schematic

20W 95dB Outdoor GSM Dcs Dual Band Repeater Bda



Working principle:


When the repeat antenna receives uplink signals from a subscriber, the signals will undergo processing of low-noise amplifier, filter and power amplifier first, and then be transmitted to the base station, thus accomplishing connection between subscribers in signal blind area and base station.

In this way, the blind areas are eliminated.

Considering receiving signal intensity and coverage size may vary with sites where repeater is located, it is necessary to control the gain and output of the repeater.

Additionally, considering the fading effect in spatial signal transmission, auto amplitude fixing for output is required.


For this purpose, MGC and ALC circuits are included in the uplink/downlink channels.
 
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