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 →

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 →

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 →

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 →

One of the things that is difficult when you get interested in EME is to now where and when the stations are active. Fortunately, there are some places on the internet where you can find this information. A particularly good place … Continue reading →

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 →