Advanced VLF/LF receive system developed under the tri service propagation program
Abstract
The report describes the advances made in VLF/LF reception and analysis with the application of a computer-controlled narrowband receive system (HP 3040A). It also describes the techniques used and the difficulties encountered during the design and fabrication of an interface to interconnect a Hewlett-Packard (HP) Network Analyzer to a Data General Nova 1200 Minicomputer. The HP 3040A Network Analysis System was specifically designed to operate remotely with slower, more tolerant devices than a computer. The recommended remotely controlling devices are an HP 3260A Marked Card Programmer for input and a Teletypewriter for direct output. The software driver programs to direct the Nova/Analyzer interface and the new System's performance data are also discussed.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- January 1976
- Bibcode:
- 1976STIN...7629466B
- Keywords:
-
- Low Frequencies;
- Radio Receivers;
- Radio Reception;
- Very Low Frequencies;
- Computer Programs;
- Interfaces;
- Minicomputers;
- Communications and Radar