Earth-Venus-Earth
As Earth-Venus-Earth is called the reception of radio signals , from the surface of Venus are reflected.
Due to the great distance to the earth, a considerable effort in terms of transmission power , antenna gain and receiver technology is necessary. In radar astronomy , the first echoes from Venus could be received around 1960.
After radio amateurs were able to establish earth-moon-earth connections from 1953 , they planned connections via Venus. The first contact was made by a group from AMSAT Germany on March 25, 2009 at the Bochum observatory on the 13-centimeter band with a transmission power of 6 kW. At this point in time, Venus had approached Earth within 42 million kilometers, the signal propagation time was around five minutes. The experiment served to prepare the Mars amateur radio satellite P5A .
Individual evidence
- ^ Richard A. Simpson: What next after moonbounce? Venus bounce! In: QST, December 1978, 25-27.
- ↑ Bochum observatory receives signals from Venus. Ruhr Nachrichten (RN) from March 27, 2009, www.ruhrnachrichten.de , accessed on June 26, 2019
- ↑ German AMSAT team transmits, receives signals from Venus
- ↑ Venus Echoes