On 5/3/2014 9:17 AM, WA3GIN in King George, VA wrote:
Dave, with ipmost and all due respect those mentioned auto-tuners do
NOT adjust the resonance of the antenna... they are purely impedance
matching devices
I share your concern about using the correct word(s) to describe what is
going on. That "tuner" is, indeed, an impedance matching device/network,
whose purpose is to present to the transmitter a load with which it is
"happy" to supply full power.
Likewise, I reject nearly all uses of the words "balun" and "ground,"
because they have multiple meanings that nearly always lead to
confusion, and to hams doing really dumb things. I also object to the
phrase "ground loop," which is a totally false concept, and also causes
hams to do really dumb (and wrong) things to solve real world problems.
Call it what it is -- that "tuner" is an adjustable matching network,"
at least a dozen different things are described by the word "balun," and
many uses of the word "ground" have nothing to do with a connection to
mother earth.
73, Jim K9YC
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|