June 1975 | Technical Memorandum OT TM 75 201
Digital transmission test results over a long ll-GHz line-of-sight link
Cite This Publication
Darren L. Smith, F. George Kimmett, Charles A. Samson, and Albrecht P. Barsis, “Digital transmission test results over a long ll-GHz line-of-sight link,” Technical Memorandum OT TM 75 201, U.S. Department of Commerce, Office of Telecommunications, Institute for Telecommunication Sciences, June 1975.
Darren L. Smith, F. George Kimmett, Charles A. Samson, and Albrecht P. Barsis
Abstract: Digital data transmission tests using a 12.6 Mb/s data stream (3-level partial response) were performed over a l16-kmlineof-sight link in northeastern Colorado using a carrier frequency in the 11.2 -11.45 GHz band. During the first four days of a five-day measurement period, the BER (bit-errorrate) was very low. High rates were observed only on the fifth day; they appear to be caused by multipath fading and related low signal levels. This report presents a discussion of the test implementation, of the test results, and of pertinent weather information for the test period.
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