This paper describes the development of the K- and Ka-band mobile-vehiclular satellite-tracking reflector antenna system for NASA's ACTS Mobile Terminal (AMT) project. ACTS is NASA's Advanced Communications Tehcnology Satellite.

We are conducting a search for supernovae in starburst galaxies at the IRTF. Teh najor difficulty is to reliably detect weak point sources in the presence of a bright and structured background.

This paper discusses a series of aeronautical experiments that utilize the Advanced Communication Technology Satellite (ACTS) Broadhand Aeronautical Termninal (BAT)[1]. These experiments were designed to explore the uses ...

Mobile satellite systems allow truly ubiquitous wireless communications to users anywhere and

(View graphs) NASA's Deep space missions have used 960 MHz, 2.3 GHz, and 8.4 GHz for spacecraft communications dowlinks. Ka-band (32 GHz) is being considered as a downlink frequency for future flight projects.

(viewgraphs) NASA's Deep space missions have used 960 MHz, 2.3 GHz, and 8.4 GHz for spacecraft communication downlinks. Ka-band (32 GHz) is being considered as a downlink frequency for future flight projects.