I don't know the loss and power-handling capability of that stuff (for transmitting); but, in small-signal applications, shielded twisted pair is great. A few years ago I considered making 70 feet of
On the transmit side at a commercial broadcast facility, they probably design so that they can use open balanced pairs or quads. Look at the pictures of VOA transmitters and you see open balanced pa
I have been kicking around the idea of making my own air dielectric coax using 2 or 3 inch irrigation tubing for the outer conductor. I had just about exactly the same idea with the balls. I had bee
In a web search I found several manufacturers of hollow plastic balls, in a range of sizes. An attractive possibility would be cylindrical "plugs" an inch or two long, of polyethylene or polystyrene
Presumably this is to replace the openwire line you're currently using? Dielectric losses aren't all that significant at HF frequencies (except, perhaps on 10,12,15 m, but even there...) unless you'r