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Huh? / Re: Putin hasn't changed his appearance in 100 years
« on: December 18, 2015, 2209 UTC »
Aliens mannn....
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It sounds like your asking two questions; will people notice, or will it be a problem. The average Joe with an AM detector probably won't notice until the drift exceeds 500Hz or so under good conditions of propagation, he or she will simply notice a change in the perceived audio bandwidth as one edge of the audio sidebands become favored. This is why using a conventional continuous tuning receiver, AM signals sound flat when tuned correctly, and shrill as you tune to either side of the signal. People with AM sync or ECSS detectors won't really notice. Anyone with an SDR, as Chris has shown, will notice any small amount of drift over time, as the software allows you to look at long term trends. We can see when the heat in your place kicked onLol about seeing when the heat kicks in
+-RH
Hi Kage-Thanks for following. Yeah still lots of work to be done considering I am still at the VFO stage and haven't even moved on to the PA and modulator yet which will probably be a separate project, but at least that will be a lot simpler, or at least no where near as time consuming.
I've been watching your ongoing VFO build posts on your forum with great interest. Back in the 80s I occasionally ran a Johnson Valiant from the VFO when I needed to be where I had no rock. I never remember having had negative reports but then again, it was a long time ago What Vince said about buffering is true. FMing is a real issue, not only through the RF chain, but by perturbations through the power supply. With the good tight regulation you have with the LM431, that probably isn't an issue. Good luck with the project. BTW- nice pickup on that Amazon counter. Methinks I need one of those...
Looks like your're busy over there in .nl.Actually in the US and is a US based forum that is more radio tech orientated. No idea why the site would be blocked. Images are hosted on imgur so maybe that is why.