I don't remember how I did it, something about downloading a special file into the correct directory. I just asked on the sdr-iq email list. The file is on the winrad web page, but I think you have to load it into the correct directory or something.
Even after doing that, I still have to manually select the sdr-iq in the show options/select input tabs... I don't like the spectrum display as much as the spectravue, but the audio is much better and I like the ECSS. Brett ----- Original Message ----- From: "Bernie Doran" <[email protected]> To: "Brett Gazdzinski" <[email protected]>; "Discussion of AM Radio in the Amateur Service" <[email protected]> Sent: Sunday, March 28, 2010 1:22 PM Subject: Re: [AMRadio] sdr-iq > yep yep yep. I have several of those little solid state audio amps. $ 5 > and half a dozen caps and resistors near dc to channel 6 and unmeasurable > distortion, whats not to like there?? does not get any better than those > rascals. I always wonder if anyone is using several of the bigger ones in > bridge as a modulator. well I know there is a TRICK to getting WINRAD > to run. Do you intend to tell me and the others sometime in the near > future?? or just let me continue to squawk? rx sounds good, I sort of > figured it was a minimalist rx for RF and IF. every circuit, every > resistor and connection one puts in there adds junk to the signal. > > ---- Original Message ----- > From: "Brett Gazdzinski" <[email protected]> > To: "Discussion of AM Radio in the Amateur Service" > <[email protected]> > Sent: Sunday, March 28, 2010 12:40 PM > Subject: Re: [AMRadio] sdr-iq > > >> There is a trick to getting winrad to run, but its worth it for the >> audio, >> and changing the filters don't cause that racket, plus it does ecss which >> is >> real nice. >> >> Also, how you listen to the audio likely counts, with spectravue, audio >> output is low and noisy, with winrad or sdr console its much louder and >> cleaner. >> With headphones off the laptop, it sounds fine, my laptop does not have a >> line out, only headphone output for feeding into the Marantz amplifier, >> and >> does not sound that great that way. >> >> The sdr-iq is not great for operational use, since it has a lot of delay >> in >> the computer, no muting, etc. >> It does make a good swl and listen only receiver for the price and size, >> and >> is great for spectrum analysis of signals, even your own TX signal. >> >> Remember, the sdr-iq is the cheapest sdr you can buy that covers 100Hz to >> 30 >> MHz, they could have made it a LOT better for more money. The sdr-ip is >> better, and costs $3000.00 to start.... >> >> >> The homebrew RX is a simple single conversion, 455 KHz IF no RF amp, for >> 160, 80 and 40 meters. >> No active stages before the mixer, just very high Q tuned circuits, the >> filters (Kiwa) is right after the mixer, some IF amp stages, a low >> distortion AM detector, agc, s meter, digital freq readout. >> All the tubes run off 150 volts, the LO runs off 100 volts. >> Its stable, accurate, quiet, has no birdies, image problems, and has very >> good fidelity. >> >> There are a lot of simple receivers that could be made much better, add a >> digital readout, and a kiwa filter board with say 6 and 8 Kc filters, and >> maybe re do the detector and agc, and you would have a very good AM >> receiver. >> >> I always wanted to try changing a 75s1 to hifi AM by adding a good filter >> and a good low distortion AM detector. It would be stable, accurate, with >> good AM filters, small and light, and nice looking, and still copy ssb >> and >> cw well. >> I suppose it could sound and work just as good as an R390a, sp600, and >> other >> massive receivers, if you feed the detectors into a nice audio amplifier, >> or >> build a nice hifi audio output stage, maybe using one of those 8 watt 5 >> pin >> audio output IC chips. >> >> Brett >> N2DTS >> >> >> >> >> >> >> >> >> >> >> >> >> ----- Original Message ----- >> From: "Bernie Doran" <[email protected]> >> To: "Brett Gazdzinski" <[email protected]>; "Discussion of AM >> Radio in the Amateur Service" <[email protected]> >> Sent: Sunday, March 28, 2010 7:39 AM >> Subject: Re: [AMRadio] sdr-iq >> >> >>> HI Brett: yep I have tried every setting that I can change. I have never >>> been able to get WINRAD to run and I do have the rf-space downloads to >>> run >>> it. downloaded everything several times from different sources. as I >>> said, the sdr filters work great, there is an anoying pop when you slide >>> the width around. It is to the point that I have spent hours and hours >>> fooling with it and have seen no improvement since the first 2 hours. >>> sounds "OK" on SSB and its amusing to look at the splatting, residual >>> carriers and poorly suppressed upper sidebands on 80, most are good but >>> some really do not look good. its best use is for a bandscope, test >>> equipment, or portable use, as you said. Interested in your home brew >>> rx >>> tell us what you have. >>> the 390 will fed its IF to a sync det and outboard audio stage at least >>> as >>> a test. >>> ----- Original Message ----- >> >>>>> well I am going to stir the pot again with my probable final comments >>>>> on >>>>> my >>>>> SDR-IQ. first the good, never had a panadapter or bandscope, it works >>>>> great >>>>> for that. The filters are very good. The issues to me are the >>>>> following, >>>>> it >>>>> is noisy, to itself and also to a receiver on the same antenna, it >>>>> lacks >>>>> sensitivity, it has spurs, and the big one to me is the audio >>>>> quality, >>>>> a >>>>> moderate strength AM signal is difficult to understand and when on my >>>>> hollow >>>>> state stuff it is nearly %100 copy. The present computer is a 2.2gig >>>>> quad >>>>> core, no performance change above a single core 1.8 gig. Numerous >>>>> different audio systems confirm that it is the nature of the beast. >>>>> >>>>> I have read numerous articles on D-A and A-D processing and believe >>>>> that >>>>> 14 >>>>> bit is not going to do the job that I want. I suspect 24 bit and a >>>>> much >>>>> higher sampling rate, 150 meg? would just about cure the audio issue >>>>> for >>>>> me. I am starting to believe that the glowing reports written about >>>>> SDR >>>>> are >>>>> prepared by those that have never used an old VT receiver or have one >>>>> available to run beside the sdr. My FT1000 Mark V had glowing reports >>>>> and >>>>> I >>>>> am really disappointed with it. I have an ever deepening respect for >>>>> those >>>>> that designed and built the old classic receivers. Looking at noise >>>>> figures >>>>> and sensitivity on those old dogs places them very close to >>>>> theoretical >>>>> limits, pretty amazing. I have put my money where my mouth, I should, >>>>> about >>>>> April 10 or so have a completely reman R-390A. I was going to try >>>>> the >>>>> Flex >>>>> 5000, but as I posted earlier they did not see fit to respond to my >>>>> questions, perhaps thinking the questions were not fit to respond >>>>> too. >>>>> >>>>> Earth hour is today, be sure to turn on all of your lights to help >>>>> save >>>>> the >>>>> grid and generators. ! Bernie W8RPW >>>>> >>>>> >>>>> ______________________________________________________________ >>>>> Our Main Website: http://www.amfone.net >>>>> AMRadio mailing list >>>>> Searchable Archives: >>>>> http://www.mail-archive.com/[email protected]/ >>>>> List Rules (must read!): http://w5ami.net/amradiofaq.html >>>>> List Home: http://mailman.qth.net/mailman/listinfo/amradio >>>>> Post: [email protected] >>>>> To unsubscribe, send an email to [email protected] with >>>>> the word unsubscribe in the message body. >>>>> >>>>> This list hosted by: http://www.qsl.net >>>>> Please help support this email list: http://www.qsl.net/donate.html >>>> >>>> ______________________________________________________________ >>>> Our Main Website: http://www.amfone.net >>>> AMRadio mailing list >>>> Searchable Archives: >>>> http://www.mail-archive.com/[email protected]/ >>>> List Rules (must read!): http://w5ami.net/amradiofaq.html >>>> List Home: http://mailman.qth.net/mailman/listinfo/amradio >>>> Post: [email protected] >>>> To unsubscribe, send an email to [email protected] with >>>> the word unsubscribe in the message body. >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> >>> >>> >>> >> >> ______________________________________________________________ >> Our Main Website: http://www.amfone.net >> AMRadio mailing list >> Searchable Archives: http://www.mail-archive.com/[email protected]/ >> List Rules (must read!): http://w5ami.net/amradiofaq.html >> List Home: http://mailman.qth.net/mailman/listinfo/amradio >> Post: [email protected] >> To unsubscribe, send an email to [email protected] with >> the word unsubscribe in the message body. >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > > ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/[email protected]/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: [email protected] To unsubscribe, send an email to [email protected] with the word unsubscribe in the message body. 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