The digital stream could be provided in the form of a (logical) USB sound card inside the K3, there is no need for a physical sound card as most USB device controllers support defining your own endpoints etc. in the software/firmware.
73, Thomas M0TRN On 19 August 2011 16:52, Don Wilhelm <[email protected]> wrote: > Phil, > > Is there an existing software application that would accept such a > digital stream over USB? > Yes, I know that is what logically happens when using a USB soundcard, > but all the applications I know about require that the soundcard be > defined - I for one am not up to writing my own application to process > that digital stream. > > 73, > Don W3FPR > > On 8/19/2011 11:37 AM, Phil Hystad wrote: > > Actually, I can see how Elecraft might consider making their own > separately boxed sound card interface to do what the original requestor > wanted to do. That is, take in the I/Q signal, digitize via the sound card, > and present a USB interfaced digital number stream to the computer. > > > > So, Elecraft can do this but would they. I am thinking if they are smart > about business they would not bother. I mean, who is going to buy this > "box" when they have a sound card already built into their computer that > would likely do the same job. Or, there are a myriad of other external > high-quality sound cards you can buy to do this job. > > > > Or, am I missing something -- easy to miss something because I am not > sure I understood the purpose in the original question. > > > > Personally, I want my KX3 just the way that Eric and Wayne make it since > they seem to be smart about this sort of thing. > > > > 73, phil, K7PEH > > > > > > On Aug 19, 2011, at 8:26 AM, Christian KJ4VPK wrote: > > > >> Sound card USB chips are tiny... Plenty of them, too. Volume cost is > very very low, too. Making it an optional feature if it really breaks the > bank.. > >> > >> Not needing shielded analog cables seems like a beautiful thing. > >> > >> -----Original Message----- > >> From: Don Wilhelm > >> Sent: Friday, August 19, 2011 10:55 AM > >> To: gmaxwell > >> Cc: [email protected] > >> Subject: Re: [Elecraft] [KX3] ADC/DAC access, keyer input > >> > >> I believe what you are asking for means full soundcard function in the > KX3. > >> That does not seem reasonable to me. > >> Why should others who do not desire that internal function have to pay > >> for it? There are many (I would even say most) who want the KX3 for > >> portable use (without dragging along a computer for a panadapter > >> display), and that is its major design point as far as I can determine. > >> > >> Your "trickle charge" suggestion means a voltage booster circuit would > >> have to be added, and many of them generate RF hash. > >> > >> Besides, I don't think there is room inside the KX3 for those things you > >> are asking. We are approaching the "Dick Tracy wrist radio" in the KX3 > >> - how much smaller can it get? Many complain about the size of the K3 > >> buttons! > >> > >> 73, > >> Don W3FPR > >> > >> On 8/19/2011 10:15 AM, gmaxwell wrote: > >>> Tony Estep wrote: > >>>> IF output connected over USB? Maybe you mean a BNC, > >>>> > >>> No. I mean USB, as in digital output, as is found on the USRP (for > example). > >>> > >>> I see no attraction in yet another analog step that is only going to > add > >>> noise and interference, complicate PTT and control signaling, and > leave me > >>> with a mess of more cables and boxes in order to interconnect it. > (What > >>> netbook has stereo inputs? what netbook has inputs that aren't full of > >>> spurious tones from the computer?) > >>> > >>> Conceivably the KX3 could be trickle charged (500ma at 5v) via a USB > client > >>> connection, meaning a complete computer-enabled mobile station could be > >>> [antenna]-[kx3]-[netbook]-[power] which would be clean indeed. > >>> > >>> > >> ______________________________________________________________ > >> 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 > > ______________________________________________________________ > > 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 > ______________________________________________________________ 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
