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ITC Bridge > Instrumental Transcommunication (ITC) > Frequency Sweep | Radio Sweep Tuning > PPRS-1 Sweep Circuit |
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ITC Bridge > Instrumental Transcommunication (ITC) > Frequency Sweep | Radio Sweep Tuning > PPRS-1 Sweep Circuit |
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| PPRS-1 Sweep Circuit | Rate Topic |
| Author | Post |
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| Posted: Jun 3rd, 2015 12:38 AM |
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1st Post |
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Dr. Heinz Doofenshmirtz Moderator 
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I've puzzled and puzzled until my puzzler was sore, on the concept of a "random" voltage sweep. Not so sure anything can be 100% random, especially when it is contained within a certain set or parameters, peak to peak voltage etc.. I know Frank built the RVG, I don't know enough about his circuit to comment on it. I would like to see it on a scope, or a walk through describing what it is going on. I think I'm _____ outta luck on that one. This is what I came up with. https://youtu.be/jyEONZNY9S8 It sounds Better on FM than AM, do to it's choppy nature. Also I think the FM's concentration of bandwidth helps. Can't beat an old fashion linear sweep for AM. I may need to try it on a radio, in which the voltage required to swing the varactors, is less. peak to peak on this guy is about 6v, with a dead battery (almost 8v). I am assuming I can get another volt on a fresh cell. We'll see.
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| ITC Bridge > Instrumental Transcommunication (ITC) > Frequency Sweep | Radio Sweep Tuning > PPRS-1 Sweep Circuit | Top |
