--- In [email protected], "f4dan" <[EMAIL PROTECTED]> wrote: > > Phil, > > very nice project ! > > I just added a link on my classified and taxinomic list of SDR projects : > > http://f4dan.free.fr/sdr_eng.html > > Categories : > QS1R/QS1T : "sampling by a dedicated RF ADC of a "direct antenna > output" RF signal, and ASIC based DDC" > > QSRunner : "I/Q samples processing softwares" > > Best 73's > Christophe, F4DAN
Hi Christophe, Great website! It is very nice to have a webpage that summarizes all the different SDRs available by type. A clarification on the QS1R: It can be operated in two different modes; with co-processing by the AD6620 DDCs or in a similar mode to the USRP where all DDC is done within the FPGA. The AD6620 DDCs help out with narrow band modes or multichannel (multiple receiver) modes. For wideband/oscilloscope/spectrum analyzer/panadapter modes the DDC can be done entirely in the FPGA. So the QS1R is a hybrid between the SDR-14/IQ type devices and the USRP/SSRP devices. 73 de Phil N8VB
