You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
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...
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.
This forum does not allow a single user to have more than one username. If anyone wants to change their username contact an admin and it will be done. Multiple accounts belonging to the same member will be deleted without warning.