Thanks for a good answer, Ed. No, I was not asking for someone to design and market a 20 - 500 KHz transverter (for me). I would rather do it myself, but lack the time at present.
Will look at the link you posted. Thanks and 73, matt W6NIA On Fri, 18 Mar 2011 08:21:08 -0800, you wrote: >The simple SBL-1 mixer can already do that. I'm not sure how low in >freq. it would work, but 20-KHz seems reasonable. Just tune the K3 >at F to F-480 with an LO = F-500 KHz > >Using an LO = 3-MHz the 80m band could be translated (mixed) down to >0-500 KHz (with some limitations near the bottom end). >The mixer would likely need a preamp ahead of it and probably a good >tunable preselector (tunable filtering). > >No firmware needed to do this. > >For full transceiver operation just add a second mixer for the >transmit path to the KVX-3. The full G3XBM transverter will provide >5-8w output: >http://sites.google.com/site/g3xbmqrp/Home/136k > >I think the part of the discussion is: "if someone started working on >a receive converter for 20 to 500 KHz". You can do it yourself. But >if this is saying: "I wish someone would make me something", then are >there enough buyers to make such an effort worthwhile? > >Lets say I can build this and sell it for $250. I invest $5,000 to >make up 20 of them. How long till I make back my investment? This >is so simple why would anyone buy one from me? > >73, Ed - KL7UW > >------------------------------ > >Message: 34 >Date: Thu, 17 Mar 2011 21:48:31 -0700 >From: Matt Zilmer <mzil...@verizon.net> >Subject: Re: [Elecraft] [Elecraft_K3] KR3 SW Receiver. >To: Ken Alexander <k.alexan...@rogers.com> >Cc: elecraft@mailman.qth.net, elecraft...@yahoogroups.com >Message-ID: <q3o5o6hj8cnup6j0v4gpqcqa1gorc9k...@4ax.com> >Content-Type: text/plain; charset=ISO-8859-1 > >Maybe if someone started working on a receive converter for 20 to 500 >KHz, with TX ability on 470 to 500, the firmware would come for it? >Could test it with any IF on which the K3 can receive. The K3 can >already be operated as a transverter IF at 1 mW for the 500 KHz range, >albeit with a few restrictions. > >Too bad I don't have the time here. .... But a lot of Elecraft >projects get started because someone from outside the company thought >them up. If there is enough pent up demand, somebody will work on >this. > >The K3 would make a !great! SWL receiver, but it isn't very well known >outside the amateur community (my guess). > >73, >matt W6NIA > > > > > >73, Ed - KL7UW, WD2XSH/45 >====================================== >BP40IQ 500 KHz - 10-GHz www.kl7uw.com >EME: 144-1.4kw, 432-100w, 1296-testing*, 3400-winter? >DUBUS Magazine USA Rep dubus...@hotmail.com >====================================== >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft@mailman.qth.net > >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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
