On 01/12/2011 08:17 AM, Patrick Strasser wrote: > > Now that is not exactly the cheap one, but with its 150MSPS it would be > quite a frequency range with low additional effort. > > What would be the goal for such a device? Which bandwidth are of > interest, which dynamic ranges? Which frequency ranges? Extra frontends? > IF from other transceivers or transverters? What would you do with it? > > Oh, I forgot one interesting device: > http//:www.websdr.org/ > Seems the hardware info is not linked any more, but its a DDS board with > Ethernet interface. Very application specific, but all soldered by hand. > > > No, it's not cheap. But because it has built-in DDC+CIC Decimator, you may not need a largish FPGA to do the DDC+Decimation, so you trade-off a more-expensive ADC against not having an FPGA at all.
In terms of an RF front-end, I'd previously observed that the Rx range offered by the WBX covers a very wide "swath" of interesting frequencies for experimenters, namely 50Mhz to 2.2GHz. The core of that capability is an ADF4350 PLL synthesizer, and an ADL5387 quadrature mixer. -- Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
