Thanks Marcus, Concerning your points, I thought I’d edited the Subject line to start a new thread. I’ll be more careful in the future.
Also thanks for your clarification of the source code origin. I’ve also directly contacted the folks at SDRPlay. I do think the SDRPlay folks do want to be more closely integrated with the Gnuradio folks, as they are partially integrated into the OsmoSdr releases. I’m a little vague on the relationship between OsmoSdr.org and Gnuradio. Maybe the relationship is “parallel play”. Thanks again, Glen > On Nov 14, 2019, at 9:11 AM, Müller, Marcus (CEL) <muel...@kit.edu> wrote: > > Hi Glen, > > first of all: This email nearly eluded my attention – you replied to a > completely different topic, and that means email clients will sort your > mail under the "Simulated Time?" thread. Simply don't reply to emails > if you don't mean to actually reply. > > Then: The SDRPlay block isn't part of GNU Radio itself – it comes from > somewhere else, and I must admit I don't know from where. You'll > probably have to download the SDRPlay driver package and look inside. > > Problem with the SDRPlay driver is: It's closed source, and as such, > they can't link software against GNU Radio (which is GPL), and then > distribute it. If someone could reverse engineer that and write a GPL- > compatible driver (and integrate it with soapy or with gr-osmosdr), > that'd be very cool. > > Best regards, > Marcus > > On Wed, 2019-11-13 at 20:19 -0500, Glen Langston wrote: >> Hello all, >> >> This email is a request for documentation on SDRPlay Source block in >> Gnuradio companion. >> >> I have been testing our Radio Astronomy Spectrometer and Event >> detection with the SDRPlay RSP1A. It seems to be working pretty >> well, using the downloaded OS for Pi from SDRPlay. They seem to have >> put a pretty complete version of 3.7.13.4. >> >> Swig and boost are installed and it was fairly easy to build the C++ code in >> git clone http://www.github.com/WVURAIL/gr-radio_astro >> >> I did update a few items, including VNC and SSH configuration, but >> mostly it worked out of the box. I started with a Pi 3B+ but did >> have some trouble running out of memory, so switched to a PI 4B (4 GB) >> and the complied >> code ran well. >> >> Attached is a screen capture of the design, the inputs to the >> SDRSource and the operating design. I seem many lines in the >> frequency range 1416.5 to 1423.5 MHz and I'm wondering if I have the >> wrong band pass filter selected. But I the SDRPlay source block >> inputs don't well match the hardware layout (so far as I can figure >> out). (The capture has the wrong frequency label, it should be GHz >> not MHz). >> >> I've goggled everywhere but have had no luck finding any document on >> the sdrplay source block in gnuradio companion. Any suggestions? >> >> Thanks >> Glen
