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Off-air BDA System Vhf Amplifier RF Repeater for Tunnel Coverage Solution

Short Description:

Kingtone JIMTOM® Off-air Tunnel Coverage Solution is designed to solve problems of weak mobile signal, which is much cheaper than setup a new Base Station (BTS). Main Working principle of Repeater system: For the down link, signals from BTS is received by donor antenna and fed to off-air BDA, the off-air BDA then amplified the RF signal to stronger signal then feed to leaky cable to cover the tunnel for the distance 500 meters, then add a trunk BDA re-boost the faded signal to a strong one an...


  • Brand: Kingtone/JIMTOM
  • Min.Order Quantity: 1 Piece/Pieces
  • Supply Ability: 10000 Piece/Pieces per Month
  • Warranty: 12months
  • Product Detail

    Product Tags

    Kingtone JIMTOM® Off-air Tunnel Coverage Solution is designed to solve problems of weak mobile signal, which is much cheaper than setup a new Base Station (BTS). Main Working principle of Repeater system: For the down link, signals from BTS is received by donor antenna and fed to off-air BDA, the off-air BDA then amplified the RF signal to stronger signal then feed to leaky cable to cover the tunnel for the distance 500 meters, then add a trunk BDA re-boost the faded signal to a strong one and then fed to leaky cable to cover the tunnel for 500 meters, if the tunnel is long and need more trunk BDA to cascaded to boost the faded signal to strong one. For the up link, It is a reversed process, signals from user mobile is received by leaky cable is fed to trunk BDA to boost to a strong one then fed to leaky cable to transfer to the cascaded trunk BDA or off-air BDA, At the end of BDA stage, The UL signal is amplified by low noise amplifier of off-air BDA to improve signal strength. Then the UL RF signals are amplified by UL PA of off-air BDA to more strength signals and re-transmit to BTS via donor antenna.

    Off-air VHF BDA - Tunnel Solution

    Off-air BDA Technical Specification

    Items

    Testing Condition

    Technical Specification

    Memo

    Uplink

    Downlink

    Frequency Range

    Working in-band

    147-149MHz

    161~163MHz

    Customizable

    Duplex Space

    Working in-band

    13.45MHz

    Customizable

    Max Bandwidth

    Working in-band

    2MHz

    Customizable

    Output Power

    Working in-band

     +30±2 dBm

    +43±2 dBm

    Customizable

    Max Gain

    Working in-band

    85±3 dB

    90±3 dB

    Customizable

    IMD

    Working in-band

    -45dBc

    -45dBc

    Delay

    Working in-band

    1uS

    1uS

    Spurious emissions

    9 kHz to 1 GHz

    -36 dBm (250 nW)

     1 GHz to 12,75 GHz

    -30 dBm (1μW)

    Max RF Input level

    Working in-band

    -

    +5dBm

    Min RF Input level

    Working in-band

    -

    -70dBm

    Max RF input without damage

    Working in-band

    -

    10dBm

    VSWR

    Working in-band

    ≤1.5

    Impedance

    Working in-band

    50

    Connector

    DL RF Input

    Working in-band

    N-Female

    UL RF Output

    Working in-band

    N-Female

    Power Supply and Mechanical Specifications

    Power Supply

    AC220V

    Dimension

    530mm*310mm*175mm

    Weight

    30kg

    Max. Power Consumption

    200W @Total

    Operating Temperature

    -5~+75℃

    Storage Temperature

    -5~+75℃

    Operating Humidity

    95%

    Environmental Class

    IP55

    RF Connector

    N-Female, 50ohm

    MTBF

    ≥50000 hours

    Power LED

    Power Indicator

    Alarm LED

    Alarm Indicator

    Applications
    To expand signal coverage of fill signal blind area where signal is weak or unavailable.
    Outdoor: Airports, Tourism Regions, Golf Courses, Tunnels, Factories, Mining Districts, Villages etc.
    Indoor: Control room, CTP building,Hotels, Exhibition Centers, Basements, Shopping Malls, Offices, Packing Lots etc.

    Cell Phone Signal Booster


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