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37~40 dBm Line Amplifier
37~40 dBm Line Amplifier
  • 37~40 dBm Line Amplifier
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37~40 dBm Line Amplifier

Product Feature:


Dust-proof chassis, prolong equipment lifetime.

Work with indoor repeaters to expand coverage.

Reduce cellphone transmit power and radiation, extend cellphone battery life.

Coverage up to 10000~50000 m².

Low UL noise design, improve repeater sensitivity, keep communication quality.


Line amplifiers are actually applied as linear amplifier, it is used as the indoor coverage solution and must worked with mobile signal repeater. It amplifies transmitting RF signal in order to compensate signal loss by excessive cable or components. 


It is composed by two independent links: Uplink (or Forward Link) and Down Link (or Reverse Link). Downlink receives donor signals from BTS or Repeaters and amplify the donor signals; Uplink receives and amplifies signals from MS, in order to improve indoor coverage extension


Amplifier enhances consumer satisfaction greatly with its integrated design, compact size, easy engineering and rapid installation and debugging


Standard package 
   1) AC power cable (EU standard/ US standard/UK standard/ SA standard/China standard, etc) 1PCS 
   2) Installation kit 1PCS 
   3) User manual 1PCS
                   

                                           Model frequency

Model Frequency range Uplink Downlink
L37/ L40 EGSM/ LTE 8 880-915MHz 925-960MHz
GSM 890-915MHz 935-960MHz
DCS/ LTE 3 1710-1785MHz 1805-1880MHz
PCS/ LTE 2 1850-1910MHz 1930-1990MHz
CDMA/ LTE 5 824-849MHz 869-894MHz
WCDMA/ LTE 1 1920-1980MHz 2110-2170MHz
IDEN 806-824MHz 851-869MHz
AWS/ LTE 4 1710~1755MHz 2110~2155MHz


Electrical Specification

Items Uplink Downlink
Frequency Range CDMA800 &GSM850 824 ~ 849 MHz 869 ~ 894 MHz
GSM900 890 ~ 915MHz 935 ~ 960 MHz
DCS 1710 ~ 1785 MHz 1805 ~ 1880 MHz
PCS 1850 ~ 1910 MHz 1930 ~ 1990 MHz
WCDMA 1920 ~ 1980 MHz 2110 ~ 2170 MHz
Max.Gain ≧35dB ≧40dB
Manual Gain Control 31dB in step of 1dB
Automatic Gain Control >20dB
Bandwidth Wide Band
Ripple in Band ±2dB
Max. Input Power Without Damage 0dBm 10dBm
Output Power ≧0dBm ≧33dBm
Intermodulation Products 9KHz~1GHz ≦ -36dBm ≦ 37-45dBm
1GHz~12.75GHz ≦ -30dBm ≦ -45dBm
Spurious Emission 9KHz~1GHz ≦ -36dBm ≦ -36dBm
1GHz~12.75GHz ≦ -30dBm ≦ -30dBm
Spurious Emission Mask( WCDMA ) Complies with 3GPP TS 25.106
Modulation Accuracy( WCDMA ) Complies with 3GPP TS 25.106
Peak Code Domain Error( WCDMA ) Complies with 3GPP TS 25.106
ACRR( WCDMA ) ≥30dB @ ±5MHz &±10MHz
Noise Figure @ max. gain ≦5dB(Typical)
Return loss ≦-14dB
Time Delay ≦0.5μs
MTBF > 50000hours
Power Supply AC:90~265V, 50/ 60Hz
Power Consumption <150W
Impedance 50 ohm
Input Signal Levels -60dBm or more -15dBm to -5dBm
LED indication Power LED DC ON/OFF
Alarm LED Normal :Green ; Any Alarm Happen: Red
Remote/ Local Control Local:Via RS232 ; Remote:Via wireless Modem


Mechanical Specification

RF Connector N-Female
Switch Power Switch
Cooling Heatsink Convection cooling
Dimensions (D x W xH ) 340 * 450 * 175 (mm)
Weight < 15 Kg
Installation Type Wall Installation(or Pole Mount)
Environment Conditions IP55
Humidity < 90%
Operating Temperature -10℃ ~ 55℃

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