Accession Number:

ADA089224

Title:

COMSAT Participation in ARPA Packet Satellite Program (PSP)

Descriptive Note:

Final rept. 1 Jun 1978-1 Sep 1979

Corporate Author:

COMSAT LABS CLARKSBURG MD

Personal Author(s):

Report Date:

1979-10-01

Pagination or Media Count:

286.0

Abstract:

This final report summarizes the last year of the Communication Satellite Corporations COMSATs participation in the Atlantic Packet Satellite Program SATNET, an experimental program involving packet data transmission via a single 64 Kbs SCPC channel in the SPADE Transponder of INTELSAT IVA Atlantic Primary between standard A earth stations at Etam, W.Va. , Goonhilly U.K., and Tanum Sweden. A fourth, smaller GT 28.5 dBK earth station at COMSAT Laboratories, Clarksburg, Md. also participated in the experimental network. The report describes new packet satellite program PSP terminals which were fabricated at COMSAT Laboratories for installation at the large INTELSAT earth stations. These terminals contain the necessary interfaces and modems to interconnect the SIMP Satellite Interface Message Processor and the earth station intermediate frequency i.f. equipment. Also described is the command and monitoring CM module which is a part of the PSP terminal. Channel monitoring data collected during 1979 are summarized. Preliminary tradeoff result comparing packet satellite transmission to other alternatives are also included in the report.

Subject Categories:

  • Unmanned Spacecraft
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE