This is a long story — I’ll skip the details. I had to take down all my wire antennas, including my main antenna, an off-center fed dipole.
I replaced all the antennas with a single end-fed antenna for 40, 20, 15 and 10 meters. The new antenna is the EFHW-4010 manufactured by MyAntennas.com.
Here’s a photo of the antenna installation. The transformer/balun is mounted under the eave of my screen rear porch. The two wires coming from the bottom of the balun are the coax feed line, and, #6 copper ground wire that terminates on the ground at an 8-foot copper ground rod driven almost entirely into the ground. There is a small loading coil on the antenna — that’s the dark object along the antenna wire. The antenna is 63 feet long; the far end terminates near my garden shed.
The hooked object in the lower right corner of the photo is a hook that holds a hummingbird feeder in the summer. The round object in the bottom center is our satellite TV dish.
I tied the coax and the ground wire together with nylon cable ties so the stiff ground wire prevents the coax from whipping around in the wind.
I’m very pleased with this antenna. In the one week it’s been up, I have worked several stations between Florida and Maine on 40-meter CW running both 80 watts and 5 watts.
Here’s a close-up view of the transformer/balun, feed line and ground wire.
The balun is secured to the house with a couple of stainless steel lag screws. The coax feed line is on the left, the copper ground wire on the right, the antenna runs to the left, 63 feet where it’s tired to a length of dacron rope that terminates at my garden shed.