[Milsurplus] Alexanderson alternator on Xmas eve

[Unserviceable but Repairable]

another item

a cheapo 17.2 kc marker.  I did it w. a cmos divide-by-n & the right
xtal + 4001 osc w. 9V,  Calibration on DZ-2 hopeless & on Lowe it's
only good to 1kc.

That marker made all the difference

Say on ferrite bundles.  The L-factor (mu), doubles as an area
multipication factor too.

For mu=100, if the bundle end area is 10 in**2, effective area is 
1000 in**2.  About same capture area as a 3' loop

But where ya gonna get the ferrite rods?

And.  And fella built a 17kc-in, 28.017 kc-out self-powered job
to hoist to the heights.  Idea ws to get it outa purported
noise blanket near ground.  8' whip doubled as 17.2kc voltage-
probe antanna like on a car AND 10m out fm mini-ckt.s double-
balanced mixer..

Used our field day IC703 as on-ground rx.  Result?  Same as other
methods running @ Hunting Island.  Among these was a RYCOM (railway
comm.) & a loop.  A very late RYCOM with a BFO to demod 'carrier
telephony' which is SSB.

Be sure to inject a BFO sig somewhere w. a selective voltmeter.  Maybe
@ 18kc @ antenna input?

Have never tried a RAK/RBA.  Regen.s both hence no BFO need since 
self-supplied,

Nor has a laptop run w. spectran @ SC seashore.  I remain douptful with
time window short enuf for 18 wpm.  Suspect noise but have never been
sensible enuf to see if detectable on "regular rx."

   M