Dear Cecil Of course you are right, but the question does amateur radio need a 15$ reciever, provoked this kind of response. I think it is good to answer if...
Tony, put me down for a production SR6. Stan Rife W5EWA Houston, TX K2 S/N 4216 ... From: softrock40@yahoogroups.com [mailto:softrock40@yahoogroups.com] On ...
Ah, but there is a difference between stating your wishes and asking for someone else to keep track of the orders for them. We have gone through several rounds...
At Mouser they have a HC-49 14.194MHz crystals with wire leads for $.47, $.35 in hundred qty, but since the SoftRock uses high capacity in the oscillator, that...
Hi Tony, I'm late to respond, but I did read all the other responses before sending this. Regarding the 2 band softrock-yes, of course we would like it. ...
KY1K
ky1k@...
Mar 1, 2006 4:17 pm
3035
Hi Art, Band switching is by changing the frequency of the QSD clocking by 2x. If the QSD is well balanced then its response to the 2nd harmonic is well down ...
Replying to myself..... It was pointed out to me (off list) that the Intel Integrated Performance library dll was used in Gerald Youngbloods original VB code....
There is only one guy that has anything to say about the kit ordering business, and that is Mr. Parks. I believe he has email capabilities, and at last look,...
Hi Tony, I´m glad about hearing from the new projekt. As you know, I made three of the softrock 5.0 RX and all are still working very well. One is working...
Hi folks, I'm real confused here and I have not found and answer for this, so please let me pester all the experts out here :-). I have the SRv5 with the 40m...
Hi Cecil Thank you for your kind offer, but my mathematics was actually wrong. Although the crystal would be fine for 80m CW, for 160m it would only give ...
... Tony, isn't the response to the second harmonic only 6 db down???? Even if the second harmonic was 30 db down, signals that are s9 +30db are not at all...
KY1K
ky1k@...
Mar 2, 2006 1:42 am
3042
As Tony comes up with smaller and cheaper Softrock every other week it occured to me that it wouldn't be too expensive to build a dual receiver by using 2...
... real, ... through, ... checking. ... one. ... or ... Search the messages for "Mirror Image" and you will likely find the solution (bad solder, solder...
Hello Jean-Claude, Thanks VERY much for the reply! ... Did so and will check everything again very closely tomorrow. This problem occurs on both the 40 and 20m...
I had two QSD modules that only had one channel working. One eventually developed a short from pin-1 of the LT1719 (U3) 2ohms to ground. Very hot regulator....
Recognizing that DDS control line signals were relatively high speed, I figured that selecting a feedthru capacitor value to use in my new Hammond "box" for...
Hi Jean-Claude, ... Thanks again! That does make sense, but the QSD was the last place I would have looked as the QSD board was built and tested and then...
Hi Vikki, Any place in the SoftRock circuit or connection to the soundcard that seriously affects one of the audio channels will result in little or no image...
Some other things to check: 1. the values of R25 and C25 are the correct values. 2. you are using the line-in on the soundcard and it is stereo. 3. any shorts...
Hi Vikki, The noise problem, could be due to a bad crystal. My 20m crystal behaves bad and causes about 20db noise over the whole band compared to another...
Quoting Gérard/F6EHJ: Hi Craig, Just to say I succeeded to mount 2xAD9951 in synchronized mode to deliver I/Q signals or any phase difference. It works very...
I have an evaluation board for the 9954 with two on it. The sync signal mechanism between them is solid. There is also the AD9958 which AD is really pushing...
Following a lot of discussion of the SMT projects soldering I'd like to show you guys the small amount of equipment that it really takes to do the job. Basicly...
Thanks **VERY** much to all who responded to this. Thanks to your gracious efforts I good idea of where to go from here. I did finish up the schematics for the...
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