> Most PC SDR software needs an I/Q pair of signals which this > is not, but there is software that will take a single signal > elevated above baseband (I believe Softrock works this way).
The SoftRock receivers and LP-Pan operate much the same way. They are fixed frequency downconverters that provide I/Q audio outputs. The I/Q audio is then applied to a common soundcard. The higher quality soundcards provide a wider frequency "window" (higher sample rates), lower noise floor/higher dynamic range, and better image rejection (better I/Q balance). 73, ... Joe, W4TV > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of ab2tc > Sent: Saturday, January 31, 2009 11:49 AM > To: [email protected] > Subject: Re: [Elecraft] Impossible mission? USB with the > 13khz filter for PSK31on Digipan > > > > The 2nd IF is 15kHz which is well within the capabilities of > many sound cards. But it would require surgery to the K3 as > this signal is not available externally. It would certainly > be an interesting experiment for the bold risk taker. Most PC > SDR software needs an I/Q pair of signals which this is not, > but there is software that will take a single signal elevated > above baseband (I believe Softrock works this way). > > > Don Wilhelm-4 wrote: > > > > I don't think there are any soundcards capable of handling > the 8+ MHz > > IF > > output from the K3, but LP-PAN converts that IF signal down > to baseband > > and does exactly what you are asking about with PowerSDR. > > > > 73, > > Don W3FPR > > > > AD6XY wrote: > >> Has anyone tried taking the K3s 2nd IF out to a high end soundcard > >> and doing the DSP on a PC? > > > > > > > ----- > AB2TC - Knut > -- > View this message in context: > http://n2.nabble.com/Impossible-mission--USB-with-the-13khz-fi lter-for-PSK31-on-Digipan-tp2240355p2250439.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
