Accession Number : AD0856876

Title :   G.B.Q. Antenna Tests.

Descriptive Note : Final rept.,

Corporate Author : MCDONNELL CO ST LOUIS MO

Personal Author(s) : McKee, E. D.

Report Date : 09 OCT 1967

Pagination or Media Count : 37

Abstract : The purpose of the tests was to determine the radiation distribution of the nose stub antenna mounted on the Gemini Spacecraft with and without the nose fairing and ejection spring, for frequencies peculiar to the Gemini B Qualification vehicle (G.B.Q.). The tests were run at the VHF-Telemetry (259.7 MHz) and Command (X-3) frequencies. The tests were conducted at 500 feet using the ground level range technique with the reflection level reduced to 40 dB. The tests were conducted on a 1/3 scale model of the Gemini B Spacecraft with a section of the Manned Orbital Laboratory using right hand circular (RHC) polarization for VHF-Telemetry and left hand circular (LHC) polarization for the Command Frequency. The data results consists of Radiation Distribution Plots with information printed every two degrees of theta and every two degrees of Phi with plus or minus 0.5 dB resolution, polar plots for principal plane cuts and roll cuts every ten degrees of theta, with integration information for calculation of the isotropic level. Information for contour plots was taken from the RDP's. (Author)

Descriptors :   *SATELLITE ANTENNAS), (*MANNED SPACECRAFT, (*SPACE STATIONS, SATELLITE ANTENNAS), SPACE CAPSULES, VERY HIGH FREQUENCY, ANTENNA RADIATION PATTERNS, MODEL TESTS.

Subject Categories : Electrical and Electronic Equipment
      Manned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE