RX 305m radioteleskopu Arecibo odrazem od Měsíce
Napsal: 22. 03. 2010, 00:51
Ahoj,
mozna by vas mohlo zajimat, ze v pondeli vecer 22.brezna bude v ramci akce Echoes of Apollo 2010 http://echoesofapollo.com/moon-bounce/ vysilat z 305m radioteleskopu v Arecibu mistni radioklub pod znackou KP4AO odrazem od mesicniho povrchu (EME) na 432,045 MHz +- doppler. Mod bude telegraf i SSB a sance na zachyceni signalu je v pripade uziti bezneho prijimace, ktery umi tyto mody jiz s antenou typu dipol (zisk anteny v Arecibu je na 70cm 56dBd a vykon koncoveho stupne 500W). Dalsi informace naleznete na webu: http://www.ok2kkw.com/arecibo_march2010.htm . Fyzikalni otazky ohledne provozu EME je mozno si precist zde: http://www.ok2kkw.com/next/st1976.htm
Dalsi text nepotrebuje preklad: "A meeting with NASA at NASA-Ames yesterday bore fruit as earlier predicted, with an opportunity for collaboration between NASA and Arecibo, and possible regular EME operations from Arecibo in the future. NASA mentioned, that whether this happens, now turns on a critical EME receive test that will happen in March. NASA and Arecibo would like a well organized test done, and, based on the results, will make a decision of a level of support and interest for future Arecibo EME/Science outreach / Fun projects. As many as several per year.
What Arecibo, and NASA want, is to get quality data from as many sources as possible during the test, and a well thought out, standardized form for data collection, and submission for analysis, that includes details of the reception, (a digital audio file recording would be great) listing obviously, time, date, frequency, Make and model, serial number, of each item used at the receive location, Receiver, Preamp, if any,Coax, and station layout used, Antenna type, make, model, Signal strength reports, objective, (precision, if possible) and subjective, and any notes on how the antenna was pointed, whether hand held, or some auto track method. (software used) A careful record of actual Az and El vs time, date, Operator name, location and contact information, and a subjective report by the operator after the test. Photographs, or video of each Station actually used, or in operation, showing key components, Antenna, coax run, interconnects, relays, Receiver preamps used, etc."