PS - You pushed a button there. I assume you meant aluminum foil. Tin foil has been out of general circulation for many decades. ¡°tinfoil¡± was a term that would immediately bring down the wrath of my father who was an aluminum salesman for all of his professional life.
I have successfully used grounded aluminum foil as an RF shield in more experiments than I can remember. Copper is better, but aluminum suffices in many cases.
DaveD
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On Feb 27, 2021, at 20:29, Dave Daniel <kc0wjn@...> wrote:
Think, Chuck, think.
On Feb 27, 2021, at 19:13, Chuck Harris <cfharris@...> wrote:
Does putting a tinfoil hat on your head take care of
the need for a screen room? Asking for a friend...
-Chuck Harris
Dave Daniel wrote:
Ummm...for experimentation purposes one could probably wrap the probe and cable with some grounded aluminum foil.
DaveD
On Feb 27, 2021, at 18:15, Jim Ford <james.ford@...> wrote:
And if/when that becomes a problem, you're going to need a screen room.
Not cheap, although I suppose if you have small enough devices under test, you could build a small screened chamber. Haven't tried it myself, but it does sound like an interesting exercise.
Jim Ford
------ Original Message ------
From: "Ed Breya via groups.io" <edbreya@...>
To: [email protected]
Sent: 2/27/2021 2:10:10 PM
Subject: Re: [TekScopes] P6021 Noise Problem?
If you have an RF spectrum analyzer, or access to one, you can easily see what's out there, and identify the exact frequencies and likely sources. We're awash with all sorts of EMI from everything in the environment, so assume there will always be some fuzziness added to measurements at higher sensitivities - it's just part of the deal.
Ed
