My HF antenna

I thought I’d start off by doing a post about my HF antenna. Right now I have a doublet of unmeasured length, estimated to be about 55 feet long and 45-55 feet high. I had a lot of help from Thomas W2XG, who also gave me the wire for it, so thanks!

All it is is two pieces of 12AWG wire of equal length, with some 300 ohm tv twinlead in the middle, and ropes on the end. The ropes are 1/8″ dacron designed for antennas, and are connected at the other end to some trees. The ladder line is probably about 20 to 25ft long and goes down to a balun made by K8EC. The balun has SO-239 connectors, so I have a piece of coax and some ring terminals to connect it to the twinlead. This is temporary, obviously. It will be fixed whenever I remember to and get myself to go look for binding posts. The other end of the balun is connected to some Belden 7733A coax. It’s very low loss, but also thick and has a solid 10AWG center conductor, which makes it very stiff. That is connected to the back of my MFJ-945E tuner, then a 3ft RG-8x jumper connects this to the transceiver.

I have been able to tune it no problem on all bands 80 to 10 meters, excluding 60m because my radio does not have that band. I can get out to western Europe on 80m, but not much farther. 40m performs very well, and I’m getting out all over the world. 20 is even better, I can get all the way to VK6, pretty much my exact antipode, no problem(FT8 at least). I am running only 100w into it.

So far it’s withstood maybe 30mph winds, but we havent had much more than that here since I put it up.

Here it is as seen from the roof, picture is taken with a baofeng: