Category Archives: SDR (Software Defined Radio)

DSLWP amateur radio satellites launched to Lunar orbit

DSLWP is a lunar for­ma­tion fly­ing mis­sion led by Harbin Insti­tute of Tech­nol­o­gy for low fre­quen­cy radio astron­o­my, ama­teur radio and edu­ca­tion. It con­sists of a pair of 47 kg microsatel­lites launched from the Xichang Space Cen­ter into a lunar trans­fer orbit at 21:28 GMT on Sun­day, May 20, 2018 and they will enter a 300…


Lunar Amateur Radio Satellites DSLWP-A1/A2

Mingchuan Wei BG2BHC reports DSLWP is a lunar for­ma­tion fly­ing mis­sion for low fre­quen­cy radio astron­o­my, ama­teur radio and edu­ca­tion, con­sists of 2 microsatel­lites. Devel­oped by stu­dents at the Harbin Insti­tute of Tech­nol­o­gy the ama­teur radio pay­load onboard DSLWP-A1 will pro­vide telecom­mand uplink and teleme­try / dig­i­tal image down­link.


 

What is RTL-SDR?

The RTL-SDR is an ultra cheap soft­ware defined radio based on DVB‑T TV tuners with RTL2832U chips. The RTL-SDR can be used as a wide band radio scan­ner.
RTL-SDR is a very cheap soft­ware defined radio that uses a DVB‑T TV tuner don­gle based on the RTL2832U chipset. With the com­bined efforts of Antti Palosaari, Eric Fry and Osmo­com it was found that the sig­nal I/Q data could be accessed direct­ly, which allowed the DVB‑T TV tuner to be con­vert­ed into a wide­band soft­ware defined radio via a new soft­ware dri­ver.

Essen­tial­ly, this means that a cheap  TV tuner USB don­gle with the RTL2832U chip can be used as a com­put­er based radio scan­ner. This sort of scan­ner capa­bil­i­ty would have cost hun­dreds or even thou­sands of dol­lars just a few years ago. The RTL-SDR is also often referred to as RTL2832U, DVB‑T SDR, RTL don­gle

There are many oth­er soft­ware defined radios bet­ter than the RTL-SDR, but they all come at a high­er price. Cur­rent­ly we think that the Air­spy and SDR­Play, SDR’s are the best low cost RX only SDR’s. Then there are the Hack­RF and BladeRF SDRs , which can both trans­mit and receive.


Solar-Terrestrial Data


Geomagnetic Field status monitor

Solar X-rays:

Geomagnetic Field:
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From n3kl.org

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