Re: [soft_radio] Quadrature Sampling Detector Questions

2009-10-22 Thread ward
increase jitter rather than decrease it. ward On Oct 22, 2009, at 11:51 AM, Randy Rogers wrote: my question was why the flex-radio system is offset from the lo by 11Khz. if there is clock jitter in the sampling system that same jitter would also be present at the offset. From: Guido

Re: [soft_radio] Re: LD-1 Discussion on Garage-shoppe.com Blog

2010-01-28 Thread ward
my through hole parts away so I wouldn't be tempted to design with them again. Seriously. Use surface mount a few times and you'll love it. Make the investment in a hot air gun of some sort, you'll have more success earlier and make the transition less painful. ward ae6ty On Jan 28, 2010, at 3

Re: [soft_radio] Re: LD-1A updates: a testimonial, transmitter module, and more

2010-03-13 Thread ward
don't? Finally, is it really an 'image' problem or a 'sideband' problem? Sorry if this is rambling, Thanks for your insights. ward ae6ty On Mar 13, 2010, at 2:51 PM, g8voip wrote: Hi Pete, I am not too sure you can really draw any conclusions from that at all. Who knows, perhaps it could

Re: [soft_radio] Re: LD-1A updates: a testimonial, transmitter module, and more

2010-03-14 Thread ward
and feeding of matched mixers is all out of proportion in these phasing rigs. That or I'm simply pushing them too hard. Thanks again folks. ward ae6ty

Re: [soft_radio] Re: LD-1A updates: a testimonial, transmitter module, and more

2010-03-15 Thread ward
see significant degradation from the 'optimal' over time. I generally attribute this to temperature variation. I don't fight this too hard. Operationally, 60db is acceptable. In any event, thank you again. Seeing another's experience is often useful confirmation of one's own sanity. ward

Re: [soft_radio] writing a sdr?

2010-03-16 Thread ward
Hank: Are you interested in writing your own or are you interested in looking at other's code? In what platform are you interested? ward On Mar 15, 2010, at 6:12 PM, hank smith wrote: hello has any one created a 2-way radio sdr yet? if so what would it take to get something designed

[soft_radio] Implementing your own SDR?

2010-05-07 Thread ward
with the subject matter. If you have some time, I would appreciate the feedback. Please remember that I will be supplementing verbally. My presentation can be found at: http://www.ae6ty.com/ae6ty/ae6ty/Papers.html Click the picture of the Hilbert Transform kernel. My sincere thanks. ward

Re: [soft_radio] Implementing your own SDR?

2010-05-07 Thread ward
I'll see if I can post a zip file which has the html. I could also provide powerpoint but it generally requires powerpoint 2010 or keynote because of the videos. I'll let you know when they're available. ward On May 7, 2010, at 11:07 AM, Rotten Robbie wrote: How can we get a copy of your

Re: [soft_radio] Re: Implementing your own SDR?

2010-05-10 Thread ward
The zip files are at the bottom of my papers page. ward On May 10, 2010, at 12:09 AM, hank smith wrote: can I get the zip file? - Original Message - From: drmail377 drmail...@yahoo.com To: soft_radio@yahoogroups.com Sent: Sunday, May 09, 2010 11:12 PM Subject: [soft_radio] Re

Re: AW: [soft_radio] Re: Implementing your own SDR?

2010-05-10 Thread ward
if there is a problem with some browsers and 'local' web pages I'd like things to work for all configurations. If you can give me some more info perhaps I can change some things and have others proceed more smoothly? Thanks, ward On May 10, 2010, at 12:40 AM, Stephan Schaa wrote: Strange

Re: [soft_radio] Re: QSD vs H/S ADC

2010-05-14 Thread ward
channels BUT I am not convinced that all this work is truly worth while. I have not used the QS1R approach myself but having dealt with the issues involved with QSD/QEC I would take a very hard look at the QS1R approach. ward On May 13, 2010, at 7:40 PM, Chris wrote: Certainly an interesting

RE: [soft_radio] Linearity, 3rd OID, Waveform Compression, etc...

2009-03-25 Thread ward harriman
). For me, it is the journey that leads to understanding. I'm hoping to find a guide! Can anyone on this thread point me to an ongoing discussion or an archive through which I can see what others have experienced and discovered? My thanks, sorry to have interrupted your day. Ward Ae6ty