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Re: How can you amplify a signal but not attenuate it?

 by SFE ¦  Wed Nov 07, 2018 3:14 pm ¦  Forum: Wireless/RF ¦  Topic: How can you amplify a signal but not attenuate it? ¦  Replies: 4 ¦  Views: 232

I understand shielding but I'm talking about devices that amplify but not attenuate a signal wirelessly.

Re: How can you amplify a signal but not attenuate it?

 by SFE ¦  Wed Nov 07, 2018 10:25 am ¦  Forum: Wireless/RF ¦  Topic: How can you amplify a signal but not attenuate it? ¦  Replies: 4 ¦  Views: 232

I've heard of repeaters and devices that amplify but not ones that attenuate wirelessly I mean, not at the source. It is possible? I'm thinking of devices that claim to reduce EMF-why they claim they work, but in fact do nothing.

How can you amplify a signal but not attenuate it?

 by SFE ¦  Sat Nov 03, 2018 3:52 pm ¦  Forum: Wireless/RF ¦  Topic: How can you amplify a signal but not attenuate it? ¦  Replies: 4 ¦  Views: 232

Just wondering why is it you can amplify a signal with something like a repeater but not attenuate it wirelessly as well? Wouldn;t the same mechanics apply?

How to make Electrostatic Generator tuned to certain frequecies

 by SFE ¦  Thu Oct 18, 2018 5:59 pm ¦  Forum: Wireless/RF ¦  Topic: How to make Electrostatic Generator tuned to certain frequecies ¦  Replies: 1 ¦  Views: 1217

Is there a way to convert an electrostatic generator to one that gives off tuned frequencies? Any ideas would be appreciated.