On 05/01/2016 06:38 AM, David Goldstein wrote: > Maybe someone has an extio that will fix this...?
Yes there is an extio - the poster could supply the list with the parameters he's using and his hardware setup. > > On Apr 30, 2016 11:39, "Dominic Spill" <[email protected] > <mailto:[email protected]>> wrote: > > I can't remember how it works in SDR#, but in GQRX you can just click > on the display and it will start demodulating that frequency instead > of the centre frequency. It's probably the same in SDR# > > Dominic > > On 30 April 2016 at 16:36, [email protected] > <mailto:[email protected]> > <[email protected] > <mailto:[email protected]>> wrote: > > Hi Dominic, > > > > Yeah 101.5 and 103.3 are right in town or nearby. I will have to > test the > > offset features better...I will let you know how this goes. > > > > David > > > > > > Sent via the Samsung Galaxy Note® II, an AT&T 4G LTE smartphone > > > > > > -------- Original message -------- > > From: Dominic Spill > > Date:04/30/2016 11:23 AM (GMT-05:00) > > To: [email protected] > <mailto:[email protected]> > > Cc: hackrf-dev > > Subject: Re: [Hackrf-dev] Static/warbling non reception issue > > > > On 30 April 2016 at 00:32, David Goldstein > > <[email protected] > <mailto:[email protected]>> wrote: > >> Hi, here's a screenshot of the settings that I can change, plus the > >> spectrum analysis shot. The audio I get is heavily distorted on > the strong > >> local FM stations. > > > > The station at 101.5MHz looks like an excellent signal. > > > >> So, I have no idea what's wrong, except that it could be the > sound driver > >> or on-board sound. > > > > Are you demodulating the signal at the centre frequency? Or at an > > offset? The spike in the middle is the DC offset, so if you're > > demodulating there you're going to see bad data. It's explained in > > more detail here: > > > > https://github.com/mossmann/hackrf/wiki/FAQ#what-is-this-big-spike-in-the-center-of-my-received-spectrum > > > > Thanks, > > Dominic > > > >> -----Original Message----- > >> From: Dominic Spill [mailto:[email protected] > <mailto:[email protected]>] > >> Sent: Friday, April 29, 2016 5:40 PM > >> To: [email protected] > <mailto:[email protected]> > >> Cc: hackrf-dev > >> Subject: Re: [Hackrf-dev] Static/warbling non reception issue > >> > >> On 29 April 2016 at 17:31, [email protected] > <mailto:[email protected]> > >> <[email protected] > <mailto:[email protected]>> wrote: > >>> Hi, how can I test the hackrf to see if it's damaged? I have sound > >>> card issues, it seems, on my i7-2600 win7 64 bit system, so I > tried it > >>> on a Vista laptop and experienced the same: static and > choppiness and > >>> some distorted voice on local fm. So perhaps the radio is damaged. > >> > >> This doesn't necessarily mean that the radio is damaged, although > we can > >> help to test whether it is, but it may be something not quite > right in your > >> settings. Telling us which settings you are using for sample > rate, gain, > >> filter, etc would really help us to diagnose the problem. > >> > >> Thanks, > >> Dominic > >> > >>> -------- Original message -------- > >>> From: Dominic Spill > >>> Date:04/28/2016 7:31 PM (GMT-05:00) > >>> To: [email protected] > <mailto:[email protected]> > >>> Cc: hackrf-dev > >>> Subject: Re: [Hackrf-dev] Static/warbling non reception issue > >>> > >>> On 28 April 2016 at 20:28, [email protected] > <mailto:[email protected]> > >>> <[email protected] > <mailto:[email protected]>> wrote: > >>>> > >>>> Hi, this might not be a tech support list but I don't know what > to do > >>> > >>> Hi David, > >>> > >>> We're happy to provide tech support through this mailing list; I'm > >>> sure we'll be able to help you. > >>> > >>>> ...everything seems set up properly but I get static and broken up > >>>> voice broadcast on local fm. I think it's the alc889 Realtek sound > >>>> card doing this...I had this issue with a winradio g 315 > because I'm > >>>> running win 7 64bit. > >>> > >>> Are you using SDR# on your Win7 install? Could you give us some > >>> examples of the settings you are using? If it's easier, you can > >>> attach a screenshot of the setting panel in SDR# (or whichever tool > >>> you're using). You could also attach a screenshot of the tool > so that > >>> we can see how strong the signal is compared to the background > noise. > >>> > >>>> They tweaked a driver for me and I got the winradio running but I > >>>> don't know what to do now with the hackrf I have, if it is the > sound > >>>> card at all. Any tips? > >>> > >>> One option would be to try not using realtime processing. > Capture ~20 > >>> seconds FM station to a file, then demodulate it from the file > >>> afterwards. Finally, you should be able to play back the file as > >>> audio. If it's a problem with the quality of the signal being > >>> received, the output will still be choppy, but if the output is > smooth > >>> we can look at where else things may be going wrong. > >>> > >>> It certainly looks like you have enough CPU power and RAM to support > >>> the task that you're trying to do, so we'll have to narrow down > where > >>> the problem could be. > >>> > >>> Thanks, > >>> Dominic > > > > _______________________________________________ > HackRF-dev mailing list > [email protected] > https://pairlist9.pair.net/mailman/listinfo/hackrf-dev > _______________________________________________ HackRF-dev mailing list [email protected] https://pairlist9.pair.net/mailman/listinfo/hackrf-dev
