Just read the Troposcatter link. Excellent info. Thanks for suggesting that. 50MHz and higher are fascinating to me. I am sure many on this forum have seen this Gordon West presentation but if you haven’t https://m.youtube.com/watch? v=uY2QunXXNPE California to Hawaii 2m SSB or CW is a goal of mine. I made a feeble attempt last summer with my FT818 at 6w....I think for that goal I may need to step up the power!