1. Transceiver Block Diagram

2. Transmitter Antenna Signal Modulator Power Amplifier Driver Stages
Power Stage
Antenna
Oscillator
Signal

3. Receiver Oscillator Antenna Filter Filter Mixer Low Noise Amplifier
Gain-Stage Amplifier

4. Transceiver = Transmitter + Receiver
Signal
Modulator
Antenna
Power Amplifier
Oscillator
Filter
Filter
Mixer
Low Noise Amplifier

5. Tokyo Institute of Technology
Uplink
144 MHz
DJ-C1 (ALINCO)
Downlink
430 MHz
DJ-C4 (ALINCO)
DJ-C1
DJ-C4

6. Taylor University
Spread Spectrum Radio
900 ~ 930 MHz

7. Stanford - Sapphire Modified Hamtronics Kits. Transmitter Receiver
437.1 MHz
2 W broadcast power
Receiver
MHz

8. Stanford – OPAL Off-the-shelf units provided by NavSymm Inc.
Uplink: MHz
Downlink: MHz

9. StenSat Group

10. Tokyo Institute of Technology