Control unit for frequency shift for short wave radio transmission
Abstract
Short wave communication, the structure of the ionosphere, and problems linked to short wave transmission are reviewed. The building-up of a frequency shift system is dealt with and the control unit included in the transmitter/receiver part is described.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- March 1982
- Bibcode:
- 1982STIN...8416447K
- Keywords:
-
- Control Units (Computers);
- Frequency Shift;
- Ionospheric Propagation;
- Short Wave Radio Transmission;
- Computerized Simulation;
- E Region;
- Ionograms;
- Ionospheric Disturbances;
- Ionospheric Electron Density;
- Communications and Radar