RAX-2

Radio Aurora Explorer (RAX-2) RAX is a standard 3U CubeSat that is 10 cm x 10 cm x 34 cm in size and 2.8 kg (~6 lbs) in mass. The satellite is designed to these dimensions so that it can … Continue reading

Signal examples

Always wanted to know what kind of sounds we hear, when listening to the radio? Here are some example and I will try to add more. ACARS: Aircraft Communications Addressing and Reporting System (or ACARS) is a digital datalink system … Continue reading

Equipment

EME Equipment Antennas: EME can be done with a single yagi antenna, for example, with 15dBd of gain and 100 watts, however, it is much better to have something like a set of 4 yagis. This is because it will … Continue reading

DO-64

DELFI-OSCAR 64 (DELFI-C³) On the 28th of April 2008 at 03:53 UTC the Delfi-C3 was succesfully launched with a PSLV launch vehicle. At 06:45 UTC the first signal was received by a radio amateur in California. At 11:55 UTC the … Continue reading

TLE

A two-line element set (TLE) is a set of orbital elements that describe the orbit of an earth satellite. A computer program called a model can use the TLE to compute the precise position of a satellite at a particular … Continue reading