Accession Number:

AD0263574

Title:

PROJECT ECHO. ANTENNA STEERING SYSTEM,

Descriptive Note:

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON D C

Personal Author(s):

Report Date:

1961-09-01

Pagination or Media Count:

17.0

Abstract:

The Project Echo communications experiment employed large, steerable, transmitting and receiving antennas at the ground terminals. It was necessary that these highly directional antennas be continuously and accurately pointed at the passing satellite. This paper describes a new type of special purpose data converter for directing narrow-beam communication antennas on the basis of predicted information. The system is capable of converting digital input data into real-time analog voltage commands with a dynamic accuracy of or -0.05 degree, which meets the requirements of the present antennas. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE