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C/TT-505 Image

The C/TT-505 from L3Harris Technologies is a UHF Command/Telemetry Transceiver. It is designed to meet the needs of many different types of space systems that require command and telemetry capabilities. The transceiver provides full-duplex wireless RF command, telemetry and a data link between two spacecrafts. It incorporates the OIC Proximity-1 protocol, providing error-free communication by employing an error-detection and retransmission service. Additionally, the Proximity-1 protocol provides an automatic link-establishment feature that allows the primary transceiver to reconfigure the secondary transceiver with no intervention from the secondary spacecraft.

The C/TT-505 is flexible enough to accommodate many mission scenarios where a data link is needed between two spacecraft, such as planetary and lunar orbiter/lander spacecraft, formation-flying interferometry spacecraft and asteroid or comet fly-by spacecraft. It uses an RS-422 serial command and status interface to allow the spacecraft to control or reconfigure the transceiver and get extensive insight into the current configuration, link status and health of the transceiver.

Product Specifications

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Product Details

  • Part Number
  • Manufacturer
    L3Harris Technologies
  • Description
    UHF Command/Telemetry Transceiver for Space Applications

General Parameters

  • Type
  • Frequency
    400 to 500 MHz
  • Applications_Bands
  • Applications
    Sacecraft, Military
  • Modulation
    FSK, PSK
  • Output Power(dBm)
    40 to 41.5 dBm
  • Rx Sensitivity
    -121.5 to -103 dBm
  • Data Interface
  • Supply Voltage
    22 to 36 V
  • Dimension
    6.75” L x 5.05” W x 3.65” H
  • Package Type
    Module with Connector
  • Weight
    2 kg
  • IP3
    -20 dBm
  • Output Power(W)
    10 to 13.8 W

Technical Documents