RFI receiver
Abstract
An S-band radio frequency interference (RFI) receiver to analyze and identify sources of RFI problems in the Deep Space Network DSN tracking stations is described. The RFI receiver is a constant gain, double conversion, open loop receiver with dual sine/cosine channel outputs, providing a total of 20 MHZ monitoring capability. This receiver is computer controlled using a MODCOMP II miniprocessor. The RFI receiver has been designed to operate at a 150 Kelvin system noise temperature accomplished by cascading two low noise field effect transistor (FET) amplifiers for the receiver front-end. The first stage low noise FET amplifier is mounted at the feed horn to minimize any cable losses to achieve a lower system noise temperature. The receiver is tunable over the frequency range of 2150 to 2450 MHz in both sine/cosine output channels with a resolution of 100 kHz.
- Publication:
-
The Telecommunications and Data Acquisition Report
- Pub Date:
- June 1980
- Bibcode:
- 1980tdar.nasa...82L
- Keywords:
-
- Deep Space Network;
- Radio Frequency Interference;
- Radio Receivers;
- Intermediate Frequencies;
- Monitors;
- Numerical Control;
- Superhigh Frequencies;
- Communications and Radar