L-Band Fiber Optic Transmitter and Receiver

The L-Band Transmitter and Receiver pair are used for transporting L-Band signals over a single fiber strand from the antenna to the satellite receiver. Applications include GPS over Fiber.

  1. General Details

    The L-Band Transmitter and Receiver pair are used for transporting discrete L-Band paths over a single strand of fiber from the antenna to the satellite receivers. L-band RF signals have a very limited range over coaxial cable, typically no more than a few hundred feet. By transporting the L-Band over fiber this range can be extended from several hundred feet to over 25 miles. Transmitters provide optional 13/18V LNB power as well as Automatic Gain Control (AGC) to manage RF input level. Fiber optic transport of satellite signals is useful in many applications, such as transportation of signals from a remote satellite farm to a broadcaster or cable company’s Headend, uplink and downlink applications, DBS services, and GPS over Fiber.

  2. Example Applications

  3. Model Selection
    • MXDS-26S – L-Band Fiber Optic Transmitter
    • MXRS-26S – L-Band Fiber Optic Receiver

    Standard units support 40km fiber distances, contact Maxcom for options requiring longer distance’s up to 80km

     

    All unit’s support L-Band and GPS bandwidths between 950~2600 MHz

  4. Specifications

    FEATURES

    • 950 – 2600 MHz Bandwidth
    • Optical transmitter can supply 13VDC or 18 VDC to LNB or GPS Antenna
    • Automatic Gain Control ( AGC ) In Transmitter
    • All satellite L-Band analogue and digital signals and satellite GPS signals
    • Simplicity with Performance

    OPTICAL PARAMETERS

    Connector

    • Transmitter: SC/APC
    • Receiver: SC/APC

    Operating Bandwidth

    • Transmitter: 950 to 2600 MHz
    • Receiver: 950 to 2600 MHz

    Output/Input Impedance

    • Transmitter: 75 ohm
    • Receiver: 75 ohm

    RF Connector

    • Transmitter: F Type
    • Receiver: F Type

    TX Specifications:

    Output Power : +4 dBm, Wavelength: 1550nm

    Frequency Range 950~2600 MHz

    RF Input Level: 10~30 dBmV

    Side mode suppression ration: -1 ~ 0 dB

    Optical Isolation:  min. 30 dB

    Extinction Ratio: min. 8.2 dB

    Return Loss: min. 50 dB

    RF: CNR >28, CTB <-36, CSO<-36 dB

    LNB Supply Voltage: 13/18V, 300 mA current, 90~220VAC  to 12 VDC Ext PS

     

    RX Specifications:

    Receiving Input Power : +2 ~ -12 dBm

    Wavelength: 1260nm ~ 1620nm

    Frequency Range 950~2600 MHz

    RF Output Level: 10~30 dBmV

    Flatness: -1 ~  +1 dB

    Output Return Loss:  min. 12 dB

    Channel Loading Typical 36 Ch QPSK

    IF: IM3 >-65, HUM >-60, IP1>18 dBm

    90~220VAC  to 12 VDC Ext PS

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