Commercial satellite navigation using SAW oscillator
Abstract
A 375 MHz SAW resonator controlled oscillator is developed for application in the Transit satellite marine navigation system. The SAW oscillator, in a two-cubic-inch hybrid package, contains a heater, a voltage regulator and a divider and is a direct replacement for a bulk wave oscillator and its multiplier chain. Short term stability of 2E-10 and again of 3E-8/day were achieved at 75 C. Comparison tests showed that the navigation system accuracy with the SAW oscillator was equivalent to a bulk oscillator.
- Publication:
-
35th Annual Frequency Control Symposium
- Pub Date:
- 1981
- Bibcode:
- 1981afc..symp..345L
- Keywords:
-
- Frequency Stability;
- Instrument Errors;
- Microwave Oscillators;
- Satellite Navigation Systems;
- Surface Acoustic Wave Devices;
- Transit Satellites;
- Cavity Resonators;
- Dividers;
- Frequency Standards;
- Hybrid Circuits;
- Ultrahigh Frequencies;
- Voltage Regulators;
- Electronics and Electrical Engineering