Total posts : 45366
“Just yesterday I was thinking about LW and trying to figure out how I could put up a 50-foot antenna. Isn’t that the permitted size?”
Yes I believe it is…actual calculated length is 49 feet 2.55 inches. Don’t forget the 5% wiggle room! And maximum final RF stage input is 1 watt.
I have seen a few LW setups using the “lazy” L configuration. That is the antenna wire is arranged so that it forms an L turned 90* clockwise so the short end of the L is your feed point near the ground. Take a couple of insulator blocks, some rope and springs for tension relief, a couple of trees and your set!
Another approach is the sloping L or sloping long wire. This is a good approach when there is only one tree around or having to resort to a mast.
Follow the same principles for the ground system like that on a MW setup and it should perform well. I may even attempt a test by hooking that LW TX into one of my TCU-30 couplers just to see what happens. Maybe modify one of them to be turned into a LW wire antenna coupler.
I will probably construct my own LW transmitter. Since 15.217 states “Any” in operation mode, I may set this thing up so that it can do CW, AM and FM. It is all still in the early planning stages, mostly the antenna system. I have a couple of rough draft designs for the TX.