> Hi John, > > I don't think you quite got it yet. All of those types of "Dongles" > have no frontend filtering and no gain control (AGC).
Oh, I'm all too familiar w/ SAs without YIG preselectors. That's why I've always preferred AILtech to HP. > Basically it is a > "diode" (so to speak) looking at the spectrum from DC to Daylight, even > though they have a limited range. Understood. But, there are Image Rejection Mixers. > So, yes, there will be birdies and > aliasing issues. There is no software from a unit's manufacturer for > the "All Frequency" observation mode that Amateur radio and other > hobbyists are using it for. What I'm looking for is something like the W-J, ACL, or CEI ELINT receivers, in digital form, and much cheaper. I just would like to play with one a bit. > Aside from all that , they do come in a plastic case and there is some > excelent control software, notably Simon Browns HDSDR, that can control > a number of these types of umits. As for spectrum software, the best > one is Spectrum Labs which can take I/Q input. See the respective web > sites for more information. Both of these packages are FREE. Free is good! LoL. > http://www.hdsdr.de/hardware.html The SDR software hardware page > > http://www.qsl.net/dl4yhf/spectra1.html The Spectrum Lab software. > > Bill....WB6BNQ Thanks, -John ================ _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
