L-band maritime experimentsResults are presented for the technical experiments conducted by the U.S. Maritime Administration (MARAD) using the ATS-6 satellite operating in the L-band fan beam mode. The MARAD experiments were conducted with satellite terminals placed on two commercial ships for evaluation of the communication service similar to that which will be available with a maritime commercial satellite system. Evaluation of position determination with a satellite was also made. Three modems having voice and digital data and a stabilized shipboard L-band antenna system were assessed. The ship antenna demonstrated successful tracking of the satellites for test period intervals of 4 to 6 hr without the need for operator adjustment. The ship position determination tests showed good measurement repeatability. The data analyzed supported the ability of future commercial satellite systems to achieve a probability of bit error of better than 0.00001.
Document ID
19760059842
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Brandel, D. L. (NASA Goddard Space Flight Center Communications and Navigation Div., Greenbelt, Md., United States)
Kaminsky, Y. (Mitre Corp. McLean, Va., United States)