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[Amps] Amp causing RFI Update

Subject: [Amps] Amp causing RFI Update
From: Gary H <>
Date: Tue, 4 Feb 2020 13:59:42 -0500
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Well thanks all for the advice. As for grounds I have two 8 ft ground rods and large radial field bonded to shack ground bus with short heavy wire and connected back to mains entrance ground.

We checked both amps with a spectrum analyzer all the way to 6 GHz.  Tube amp was not real clean but within specs for a 30 year old technology. The Hercules II SS amp was very clean.  So why Hercules bother his motion light and heath does not remains a mystery.

I tried three different antennas. One coax fed dipole, one open wire fed dipole and one vertical. Only the vertical did not cause his lights to come on with either amp.  My ants are 100 feet from his motion lights and 80 ft in the air. Vert is ground mounted at radial field.

I have fixed the problem by relocating the ends of the antennas another 50 feet further away.  I not longer bother his light.  Why this happens will have to be chalked up to RF black magic and his 9.99 walmart motion lights.

Thanks all

Gary K4MT
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