Hello to quiet list, I have made dsPIC30F6014 and TLV320AIC23B codec based board for my HF radio experiments. More information can be found from project pages:...
Very nice work, Juha, thank you for sharing :-) A lot of us in the Austin (TX) QRP group are interested in the Software Defined Radio. It's starting to catch...
I've ordered one of these: http://www.amqrp.org/kits/softrock40/index.html It's intended for use with a PC, but it could be used with suitable software running...
Roger Dodger, we have ordered at least 10 in the AQRP group :-) Everyone is reaching for their AD9850 DDS boards to spice up the softrock40, too :-) ... -- ...
Dear Friends, I would like to whip up a small project for the Oct 8, AQRP outing at McKinney Falls State Park. I would like any suggestions for what you can do...
... From: "John H. Fisher" <k5jhf@...> To: "AQRP" <aqrp@yahoogroups.com> Cc: <radio_dspic@yahoogroups.com> Sent: Tuesday, September 13, 2005 1:37 AM ...
... outing ... what you ... PIC10F200 chip. ... device. ... Why not a simple QRSS3 keyer, teach them how to run micro power under poor conditions and also how...
Dear Friends, I have just placed all my source code and schematics for PSK31 into the Public Domain. I have placed these in the files area of these two groups....
Hi Stan, et al, Yes, I use ExpressPCB software to draw shematics or layout boards. The software is free. The schematics are located in the sub folder in the...
Thanks for clarifying that it is expressPCB. I thought for moment that I could open it with EasyPC, the package I use. Did you really use the dsPIC30F2010 for...
Yes sir, I used the 2010 demo board :-) ... From: ddatwyler To: radio_dspic@yahoogroups.com Sent: Monday, September 19, 2005 9:58 AM Subject: [radio_dspic] Re:...
I have been hunting through the PSK31 code, and find myself a bit lost. I understand the tables (they are the best creation, use them all the time, even in C),...
The reason I quit was I was so lost :-) I'm truly sorry for the confusion. Basically the Receive_A.s module is doing all the work. It is executed 64,000 times...
This is a terrific idea, what a wonderful concept. The possibilities are infinite. Wish I knew enough to help out, but please pursue this line of thinking. A...
Dear Friends, A major discovery this morning pertaining to a new version of the dsPIC30. The dsPIC33F shows up in the latest selection guide under future ...
The RAM is a nice improvement, but also the six DMA channels would be quite handy. The TQFP packaging is hard to work with(for me) if you want to use homemade...
... Sweet! I was wondering how long these were going to take. They've been hinting at them for a while. The new 'A' rev of the older/larger 30F dsPICs was a...
... <davidwillmore@g...> wrote: ... Well, the Nyquist's theorem isn't to the high frecuency to sample, it's to the MAXIMUM BANDWITH that you can sample. If you...
... Juan, Yes, you understand it just fine. You are exactly correct in saying that sampling at rate Xs/s will capture a bandwidth of X/2 Hz. *but* for...
I really hate disappoint people. I have it on good word from inside Microchip that the dsPIC33F/PIC24 are not really "available" for us common people yet. I am...
I have found a new way to prototype surface mount parts, which I find difficult, but not impossible. This is in response to the people who brought up the...
... Anyone who would be disappointed by hearing that these chips aren't already shipping hasn't dealt with Microchip enough. :) The first dsPICs took a year...
Yes, silicon was available to some at Masters. It is flawed, lots of non-working stuff, and the boards it was on are also flawed. So sit back, take a long...
It also follows that Nyquist on a band pass (complex) works only on and ADC that has MUCH greater bandwidth than a typical ADC has, and two simultaneous...
... I'm not sure why you need so much more BW for the bandpass example. Could you amplify on that topic? And, yes, you need two simultanious S&H buffers....
... Ahh, the joys of A0 stepping silicon. ... Agreed. Keep working on other projects. Just keep an eye out for this to develop. ... I had taken a hiatus from...
Note that I tried to say that you need the bandwidth so that the input 3dB point of the ADC is out beyond the maximum frequency that will be sampled OR the...
