[Milsurplus] Link coupling, dead horse

[Help - trapped in surplus store]

On this

} Marty, you sure about this? There's been a whole lotta transmitters
} out there with link coupling and no series Xc to cancel anything,
} and they work just fine.
} 


I sed

} I'll check "the (phd) elmer"

OK, old 30s, 40s handbooks sed link coupling best employed if there's series
Xc to cancel link's Xl.  This hugely widens the load range into which
there can be power transfer.  

On useful load range, he notes the manual for the Collins 180L antenna 
tuner that shows a Smith chart where the shaded region is the area of 
180L success & the unshaded is no-match arena.

Now there are big families of antennas that exhibit a series Xc and
these would work into a link just FB.  In those families are coax-fed
examples and both Mike Hanz & Starband Meir may be example owners since 
their TCS rigs both load FB with 1:4 step-up RF transformers.

Me'n Jack Antonio are of the other family where our antennas "don't
take power" with the 1:4 (nor do our dummy loads - pure R, certainly 
no series Xc)

So, Hue, there's complete disclosure.  Doing the link math is real college
boy stuff with complex variables, surface integrations, mutual inductances,
and stuff 'til kingdom come.

In fact "the elmer" says the pi net's model simplicity is as much a reason
as any it's become the favorite (don't say "of choice" around me)

     Marty