Antenna Pointing

GEOPoint is an easy to use satellite antenna pointing calculator, for geostationary communications satellites. It calculates the azimuth and elevation pointing angles from a given location on the earth towards a specified geostationary satellite. The program also calculates polarisation tilt angles, estimates dates and times of annual sun-outage events, calculates antenna G/T, EIRP and frequency stability, and estimates path-loss and rain-attenuation based on ITU-R climate models. As used by Hausfeld Consulting for satellite communications planning.

GEOPoint is an easy to use satellite antenna pointing calculator, for geostationary communications satellites. It calculates the azimuth and elevation pointing angles from a given location on the earth towards a specified geostationary satellite. The program also calculates polarisation tilt angles, estimates dates and times of annual sun-outage events, calculates antenna G/T, EIRP and frequency stability, and estimates path-loss and rain-attenuation based on ITU-R climate models. As used by Hausfeld Consulting for satellite communications planning.

Modeling and Control of Antennas and Telescopes presents the author’s research and field experience in the area of antenna modeling, dynamics, and control. The required spacecraft tracking accuracy of 1 mdeg was the impetus for the new approaches to the antenna controls that use model based controllers (LQG and H¥ ). Consequently, modeling also required a new approach using system identification techniques. Most of the material presented is new in the telescope industry. The methods have been not only analyzed and tested, but actually implemented, giving confidence in the final result, which is significantly increased antenna pointing accuracy.

The book aims, besides introducing up-to-date contributions that are not readily available in the related literature, to present and demonstrate the recent research ideas in the field of antenna array design and beam-forming algorithms in a synthetic, coherent, and unified manner for the interested researchers. The presented topics range from relatively straightforward mathematical analysis and derivations to simulation and empirical results.

MacDoppler for Cocoa was re-written from the ground up to take full advantage of all the great Cocoa capabilities in OS X on PPC as well as Intel hardware. MacDoppler will provide any level of station automation you need from assisted Doppler Tuning and Antenna Pointing right on up to fully automated Satellite Gateway operation. MacDoppler for Cocoa carries on the rich tradition pioneered by MacDopplerPRO which is in use around the world by Amateur Radio operators, satellite spotters, educators and commercial customers from CBS News to the International Space Station Amateur Radio Hardware Management program, Delta Telemetry Tracking and Control at Boeing Integrated Defense Systems, Florida State University, and the CalPoly CubeSat Project.

MacDoppler will provide any level of station automation you need from assisted Doppler Tuning and Antenna Pointing right on up to fully automated Satellite Gateway operation. MacDoppler is a native macOS app.

Computer Simulation Technology (CST) announces the release of SIMULIA CST Studio Suite 2025 SP1 is an advanced electromagnetic simulation software that offers a user-friendly interface and integrated solvers for High Frequency, Statics and Low Frequency, EDA and Electronics, EMC / EMI, Particle Dynamics, and Multi-Physics Thermal / FEA.

This revision of the best-selling book in digital controls is a significant update with the integration of MATLAB software and new coverage in several areas.