UHF/VHF Transceiver

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

Overview

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.

Features

• 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

Performance

• 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
Functional
Vibration
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

• UHF/VHF Transceiver Brochure (PDF)