1. Background –
propagation effects
2. Technical and operational considerations
2.1 Mission frequency support
requirements
2.1.1 Telecommand
and maintenance telemetering
2.1.2 Mission
telemetry
2.1.3 Tracking
2.2 Equipment factors
3. Link performance
3.1 Calculation of link performance as
a function of frequency
3.2 Application to near-Earth space
research missions
4. Discussion and conclusions