How about this idea: apply a high enough voltage to the suspicious via and fuse out the connection. If you reduce the voltage this is also a neat method for...
Greetings all, I've recently become interested in using non linear amplifiers to amplify SSB. Obviously, this is a problem, we all know an amplifier for SSB...
Art
KY1K@...
Mar 1, 2007 12:48 pm
9270
Then you'll have a carbon trace where the short was. Maybe not a short but a resistance non-the-less. Probably not a good idea. Paul ... measure ... ...
You just have to provide enough energy so the whisker evaporates at once. The professionals do it sometimes like this. ... the ... and ... are ... hear ... ...
The drawing did not come out the way I had expected. View the drawing in a fixed point font (Courier). +5v ... 100K ... DDS60--------- 0.1uf ----|---(JP1-2)---...
... Loren - Yahoo appears to have a real problem! I have been intermittent over the last month in this group and a couple others. Today I have received zip...
Well, I've spent some hours now, checking everything around U8, the output op amp, and the U7, the FST 3253. It all checks ok to voltages and connectivity. ...
Bob, I changed my e-mail address because I think Comcast spammed out my groups because I was using my primary e-mail address. They recommend using a secondary...
my experience with the rxtx 6.1 The nice software to work the rxtx is kgk-sdr. I think it's the only soft able to rx and tx. I have tried powersdr, but that is...
... I haven't received anything from any yahoo group this morning and I've posted 2 messages-neither of which appeared in my email here. So, is yahoo dead or...
... From: "richard" ... I had nothing from my 20 Yahoo groups this morning. Normally I get between 20 and 30 from them. It is now 8 pm over here and just had 3...
On Thursday 01 March 2007 21:01:39 Art wrote:
> Greetings all,
>
> I've recently become interested in using non linear amplifiers to
> amplify SSB. Obviously,...
Hi Art, Your theory is sound but there will be a problem feeding the signal envelope back into the sound card due to the inherent delays in the signal ...
Just got the softrock kits from Tony, and am in the process of puting one together. I would like to be able to use it with my Laptop, a Toshiba Satellite....
You can even buy an SSB PA which works in class E based on this idea: http://www.sgcworld.com/500watt.html Linear transponders in satellites also use this...
I had last week the same problems.I tried for 4 days to place two pictures in the photo section , only this week monday oit worked again.yesterday I send an e...
Hello, I'm thinking to bought a 40 meter kit and connect it to my KNW TS 850 IF output. Then I'd need in additional the appropriate crystal to obtain the 8,83 ...
... The solution is EER (Envelope Elimination and Restoration). One problem with soundcard realization of EER is that the Envelope must be a DC coupled signal....
... <snip> Yes it possible but its asking for trouble in Ham land, I've worked on amplifiers that reduce distortion, by prediction the effect a non-linear PA...
Thanks for the advice Philip, after some hours, I can fairly surely say that checked continuity everywhere to be OK. What I now have is strong signals, at...
Correction T4, (looking at RX schematic...). Mike ... -- Care about the iTunes charts? Try iTracker <http://www.modern-industry.com/itracker> , the iTunes...
Hi Michael, Please check the DC voltage level at pin 7 of U8. This DC voltage should be around 2.5 volts. Also check right at the pin 15 lead of U7 to make...
First let me add my thanks to Tony and others who have supported him in the SoftRock project. I know its been said before, but the program has allowed me an...
... You also need the Tx I and Q signals supplied from the sound card to get an RF output. Just applying 12V to the PTT input puts the rig in Tx mode with no...
... Also, the software doesn't simply put out continuous Tx I and Q signals in CW mode. Keying waveform shaping is done on the I and Q, while PTT remains...
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