Total instrumental delay measurement
Abstract
The paper describes total instrumental delay measurements in the domestic Japanese VLBI system. Delay measurements were applied to: (1) feed system and waveguide; (2) parametric amplifiers and down converters; and (3) movable parts, including IF converter and record signal generator. Delay for the feed system and waveguide was difficult to measure, so it had to be obtained by calculation.
- Publication:
-
Radio Research Laboratory, Review
- Pub Date:
- September 1978
- Bibcode:
- 1978RaRLR..24..506Y
- Keywords:
-
- Antenna Feeds;
- Radio Astronomy;
- Time Lag;
- Time Measurement;
- Very Long Base Interferometry;
- Japan;
- Parametric Amplifiers;
- Pulse Generators;
- Radio Interferometers;
- Systems Engineering;
- Waveguides;
- Communications and Radar