Tracking satellites and the ISS is pretty easy. All you really need is an SDR dongle or a handheld transceiver, a simple homebrew antenna, and a clear view of the sky. Point the antenna at the pass… ...

Detection of subjects in 3D including elevation range By use of the 3D scan including elevation range in addition to the distance and azimuth range, objects above and below are detectable more ...

VANCOUVER, Wash., June 8 /PRNewswire/ — US Digital announces the release of its latest absolute, blind hollow bore shaft encoder, the HBA4. HBA4 absolute encoders are used as azimuth and elevation ...