[BC] Isotron AM Antennas

[Tom]

So, a six-inch by 10 ft PVC pipe wound with that same 100 ft of #10 (I 
have a 500' spool of #14 available) insulated wire will self-resonate 
higher in the band than the 2 inch x 20 ft. 

Then adding in a whip antenna at the far end of the coil will add 
capacity, right?  Moves the resonance DOWN, if I'm remembering correctly. 

Hmm....

Same 100' wire, but a short fat coil instead of a tall skinny one. 

I've run a couple of different programs trying to get a handle on what's 
going on - and either I'm missing something, or the programs are, 
because neither one seems to match either each other or what I got 
empirically.....

Actual (first try) was actually 175' of #14 on 1" PVC, close-wound.  
couldn't find ANY resonances with that one...

Started over with 2" PVC... (arm ached for a week after rewinding all 
that copper.....).  Works, but not as well as the power line CC 
connection...

frequency of interest is 640 kHz in the event.

-- 
Tom Spencer
PG-18-25453 (nee' P1-18-48841)
http://radioxtz.com/