Since 2005 my HF antenna is the
300 watt Buckmaster 7-band OCF dipole. This is a good antenna, the best wire antenna ever!! Very well made and strong enough to last through ice storms, unlike all the HB wire antennas I've tried. Put it up and forget it! When a support tree blew down, only the nylon support rope broke.
This 25 foot high antenna works great on bands 80m to 6m, and works well on 160m. On the entire 80m band the SWR is less than 2:1. As long as your solid state TX is happy - 1:1 vs 2:1 - you won`t be able to tell the difference. The manufacturer has a recommended installation configuration, but I'm sure it will work fine in any reasonable setup. It is also a good SWL antenna.
The manufacturer also recommends not using a tuner because of the ferrite core balun design, but I use the TS-590S internal tuner on 15m, 30m, 60m and 160m. Without the tuner the SWR on 15m, 30m, 60m and 160m is about 3:1 at the TX end of the feedline, so the TS-590S tuner works fine. The balun can handle 300W, so core heating is not a problem at 100W - the antenna still works perfectly since 2005.
Need an antenna for 6m?
The OCF dipole (no tuner) works as good as a 6m dipole and I worked 8-10 grids in many January SS with a 20W transverter.
For 30 years I used a 6m dipole, now I have a Yagi. I do use the OCF antenna periodically to work 6m openings rather than swinging the beam back and forth.
Updated June 2020 W3KM