[TenTec] swr

[Richards]

On 8/16/2010 10:18 PM, Dr. Gerald N. Johnson wrote:
> A 43' vertical is a serious mismatch on 160 and 80, its too short, has a
> low radiation resistance and lots of reactance. That makes a tuner run a
> high loaded Q and have lots of circulating current in its circuits.


		Agreed.   That kinda sums it up nicely.


> I don't know what is in the $250 box, likely a loading coil with some
> sort of switching like a series resonant circuit for each band to select
> the right amount of loading coil. There wasn't a manual available for it
> on line to learn more.


		I could not find any details, either.  I am thinking
		I favor Mr. Salas's design - it is open, and apparently
		has the imprimatur of the QST Editorial Board.
		It looks, good, too.


================================== JHR  ==============================