Ya’ know … if you haven’t tried this newer band yet, you’re missing out. It’s not a heavily used band, but there are people there. I’ve only done FT8 on 5.357 MHz (Channel 3, I think), but I’ve bagged a few new ones there. My LDG tuner tunes my vertical just fine. I have no idea what kind of efficiency, but I’ve worked all over the world with around 50 watts.
It’s an odd band. It’s shared with government and military, and they’ve got priority use … it’s channelized … the max power is 100 watts. Really an odd duck, but it is what it is. We just have to work with what the FCC allows us. Oh, and not all countries have given the amateurs the same channels, so that complicates things even more. Hey … just work ’em when you hear ’em. Try it … you’ll like it!
73 de Dick N4BC