Accession Number : AD0648426

Title :   A STUDY LEADING TO THE CONSTRUCTION OF A TROPOSCATTER SIMULATOR.

Descriptive Note : Quarterly rept. no. 2, 1 Oct-31 Dec 66,

Corporate Author : COMMUNICATION SYSTEMS INC PARAMUS N J

Personal Author(s) : Klein,M. S.

Report Date : MAR 1967

Pagination or Media Count : 35

Abstract : The work during this period was mainly the investigations required for a suitable design plan for the tropo simulator, based on the computer controlled delay network described in the first quarterly report (AD-645 503). A CA3005 RF amplifier was selected for the varilosser element. The delay matrix, to be operated at 15 mhz, will have a total delay range of 1.33 microseconds. The tapped delay line will consist of lengths of RG-174/U cable, compensated where necessary. Preliminary tests on a balanced mixer were made. The programming effort for the simulator continued during this period. The PDP-8 data processor for the simulator was received near the end of this period, and debugging routines for testing the device were started. (Author)

Descriptors :   (*SIMULATORS, *MULTIPATH TRANSMISSION), MICROWAVE COMMUNICATIONS, TROPOSPHERE, SCATTERING, COMPUTER PROGRAMMING, DELAY LINES, RADIOFREQUENCY AMPLIFIERS, NETWORKS, SIMULATION

Subject Categories : Radiofrequency Wave Propagation
      Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE