A precision 30 MHz waveguide-below-cutoff attenuator with an absolute electronic readout, NBS model x11
Abstract
A coaxial precision waveguide-below-cutoff attenuator is described which uses an absolute (unambiguous) electronic digital readout of displacement in decibels instead of the usual gear-driven mechanical counter/dial readout in decibels. The attenuator has a fixed-position RF input connector and a movable RF output connector. The attenuation rate for 30 MHz operation is given along with a discussion of sources of errors. In addition, information is included to aid the user in making adjustments on the attenuator should it be damaged or disassembled for any reason.
- Publication:
-
Final Report National Bureau of Standards
- Pub Date:
- January 1976
- Bibcode:
- 1976nbs..rept.....A
- Keywords:
-
- Attenuators;
- Coaxial Cables;
- High Frequencies;
- Waveguides;
- Digital Techniques;
- Errors;
- Electronics and Electrical Engineering