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Another test, here I tested 3 of my antennas: DIY 1/4 wave ground plane antenna DIY slim jim antenna Arrow (MURS/GMRS) antenna numbers don't lie, the Slim Jim claims to have 6dB and I believe it was measured against a 1/4 wave ground plane, well I did the same test and my gain was 6.69dB over the 1/4 wave ground plane and 3.44dB over a nice Jpole. I also did a test putting the Slim Jim only 12' high and I got better signal than my 1/4 wave mounted at 22' feet high. Highly recommended

I love his antennas! I've ordered lots. I'm looking into making my own for the fun and learning of it. I couldn't hit a GMRS Repeater about 15 miles away with a 25 watt base unit with an antenna about 8 foot up, but when I got Ed Fong's antenna, I put that up in a tree about the same height as the other antenna, and with 4 watts, I could hit it and receive it clear as day.. And nothing was wrong with the base or antennas, I tried 2 different radios and 3 different antennas, and 3 different locations, Ed's antenna worked great, and I appreciate the hours he spent with me on the phone talking about repeaters and the process of building his and everything.

Naw, EMP/CME is just tin foil hat stuff.