1. Transceiver Block Diagram

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

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

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

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

6. Taylor University  Spread Spectrum Radio 900 ~ 930 MHz 900 ~ 930 MHz

7. Stanford - Sapphire  Modified Hamtronics Kits. Transmitter Transmitter 437.1 MHz437.1 MHz 2 W broadcast power2 W broadcast power Receiver Receiver 145.945 MHz145.945 MHz

8. Stanford – OPAL  Off-the-shelf units provided by NavSymm Inc. Uplink: 437.100 MHz Uplink: 437.100 MHz Downlink: 437.100 MHz Downlink: 437.100 MHz

9. StenSat Group http://www.stensat.org/cubesatweb/Communications/Communications.htm

10. T okyo I nstitute of T echnology http://horse.mes.titech.ac.jp/srtlssp/cubesat/index.html