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UHF/VHF Transceiver


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UHF/VHF Transceiver
Duplex Transceiver

Part No:MPIS-WL-UHF/VHF-Transceiver


The UHF/VHF Transceiver enables your CubeSat to have full duplex system with telemetry, telecommand & beacon capabilities on a single board. Its efficient BPSK downlink modulation scheme and flexible UHF receiver make it easy to communicate with your CubeSat.


  • Design based on Heritage from the Delfi-C3 satellite (2008)
  • Full duplex operation (sending and receiving simultaneous)
  • Additional CW (Morse code) beacon mode
  • Receiver loopback mode (usable as transponder, for ranging or uplink checking)
  • On-board AX.25 command decoding
  • Single board Telemetry, Telecommand, and Beacon capability

Avalaible Product Options

  • Custom form factor
  • Custom RF connectors
  • Engineering Model and Flight Model available
  • Downlink data rate: 1200, 2400, 4800 or 9600 bps
  • Uplink data rate: 300 or 1200 bps
  • Transmitter Frequency range: Single frequency in 130 - 160 MHz range (crystal controlled)
  • Receiver Frequency range: 400 - 450 Mhz range (crystal controlled)
  • Receiver modulation scheme: AFSK or Manchester FSK ( Raw FSK output available)
  • Transmitter modulation scheme: BPSK


  • Transmit power: 22 dBm average
  • Protocol: AX.25 (Other protocols available upon request)
  • On-board AX.25 command decoding
  • Receiver sensitivity -104dBm for BER 10E-5
  • Telemetry output
    • Power amplifier temperature
    • Received signal strength indicator
    • FM Discriminator DC voltage
    • Forward RF power indicator
    • Reflected RF power indicator
    • Current consumption & bus voltage

Product Properties

  • Mass: 85g
  • Form factor: 90x96mm PC/104 CubeSat compatible PCB
  • Power: <1.7W (transmitter on), <0.2W (receiver only)
  • Interfaces:
  • 104 pin CubeSat Kit stackthrough connector carrying:
      • 6.5-12.5V DC power supply
      • I2C bus interface
      • Raw FSK demodulator output
      • Direct modulator input
    • RF input: SMA 50 ohm
    • RF output: SMA 50 ohm
  • Thermal Range: -20- +60 degrees Celsius

Qualification and Acceptance testing

Test QT AT
Mechanical Shock
Thermal Cycling
Thermal Vacuum
Total Ionizing Dose

QT is performed on the design/qualification model
AT is performed on the unit to be shipped

Available Documentation

     Download UHF/VHF Transceiver Specification 

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