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Congrats on passing both elements.
I can tell you a story about waiting 3 months (actually, it was 94 days, but who countedo_O) before the federal register was updated.
The 811/811h is probably the most used amp by all Amateurs.
solid design when the user doesn't drive the snot out of it , trying to get 800 watts out of a 4-500 watt amp.
I used one for many years before I changed to a THP ($$) amp.
stay away from the Aluminum towers............. YMMV.
Also concrete/rebar isn't cheep, I have 6 yards under my 54 foot cu/to.
don't forget the cost of a proper raising fixture and hoists (NOT winches) with braking systems.
all in all, my TH 11DX Thunderbird (not a small antenna by any...
It's about return loss to the antenna,..... the more the better.
Without going into detail, basically the antenna can not radiate any more power than the value of the return loss.
There are real time maps available online to locate the E clouds.
I have never heard of the "negative gain" term either.
What many in this thread refer to as "short skip" is really DIRECT wave propagation.
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