On my original IC-706, I was able to tap into the circuit at the input to the 9 MHz filter. Since it appears to be a fairly low-impedance point, I simply...
... don't ... open the file ... reader. ... usually ... That is the way I have always downloaded pdf files from the various Yahoo Groups I belong to. It works...
... "that is" being phase noise of course. Actually, your comment is true, but not because of the "SDR type radios." These extremely simple receiver mixers...
According to some, phase noise and jitter is a vast conspiracy. ... Cecil Bayona KD5NWA www.qrpradio.com "Windows, the most successful software virus ever" Don...
I AGREE!!!!!!!!! ... "that is" being phase noise of course. Actually, your comment is true, but not because of the "SDR type radios." These extremely simple...
A receiver with a good Norton pre-amp that can be bypassed, followed by a DBDM mixer then a IF QSD detector, with of course a clean LO for the mixers would...
Sorry, I'm pretty far to the right and I believe in phase noise, I believe in jitter. This one must be a far left wing conspiracy. ... Cecil Bayona KD5NWA ...
... Duplicate the K2 front end and it's PLL without the DAC tuned reference oscillator (we can deal with the 5kHz steps in software) - run the 5 MHz IF into a...
Hi Lyle, good news because i also own a IC-706. some questions : - do you feed the SDR by mean of empty filter slot input line ? - or is the SDR input in...
Hi Gian, many thanks for detailed FT-1000 IF connection aid. I have just a question about v7.0 schematic : yesterday i was simulating the shifter network for...
i think the conspiracists are on "shakey" ground. couldn't resist... back to my cypress fx2lp datasheet... 73 jim ab3cv ... From: <riese-k3djc@...> To:...
Nigel, I sent the daVinci code to the wrong place please send me a pm and I will try again. I deleted you mail so lost the address. frank Ford Peterson...
I got similar numbers with my homebrew running about 500 hz. bw. Rob Campbell <gm6oqn@...> wrote: I managed to get a couple of hours after work today so...
Probably the sound card started saturating above -40 dbm -- the SR 6 hardware I've measured will produce a 4.5Vpp signal with a -18 dbm input signal on 7 MHz....
I want to dive into the SDR software side more heavily. I'm going to try to become competent in C or some variant thereof. I see C#, C++ and plain old K&R C. I...
Well, according to ONE, anyway...!
________________________________
From: softrock40@yahoogroups.com [mailto:softrock40@yahoogroups.com] On
Behalf Of KD5NWA...
C++ is an extension of C. It does a lot more checking to make sure you match types correctly. If you are going to be wiriting for Microsoft Windows,...
Link to where you can get the different software versions for free for personal use; < http://msdn.microsoft.com/vstudio/express/visualCsharp/default.aspx > I...
C# is a friendlier cross between C++ and C it's more capable that C but not as undisciplined as C++. ... Cecil Bayona KD5NWA www.qrpradio.com "Windows the...
... The SDR input is in parallel with the used filter. I offset the SDR local oscillator so that the center of the filter passband came out at 13 kHz on the...
Hi Marco, pse see below ... comparator ... OK. Going lower in frequency you will have a lower effect of group delay. ... this ... Nothing is perfect in this...
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