Ed Fong Antenna Troubleshooting
As program director for my club, I had Ed Fong do his standard presentation last year. He does these by request for clubs across the country and then offers a discounted group buy to the club afterward. I've built one clone of an Ed Fong DBJ and currently use it as well as two purchased antennas at my house for a base station, VHF Winlink and APRS. Below I’ve included my personal notes on installing Ed Fong antennas that I’ve gleaned either from Ed himself or my experience with them over the past year. The bottom approx. six inches in the pipe is just coax and not active antenna. This is for clamp mounting to a mast. Gluing/cementing the top cap is optional. If you are suspending the antenna from the top it is highly recommended. Gluing the bottom cap (with the coax connection) WILL void your warranty. These still seal quite well with compression. Paint of some kind is strongly encouraged. PVC degrades under UV light. Ed recommends regular rustoleum (avoid metallic colors, hammered...