[Milsurplus] Need TCS antenna advice
Unserviceable but Repairable
cosmoline at aa4rm.ba-watch.org
Sat May 26 08:30:22 EDT 2007
Dear Lumberjack
in bullet format
o - The #@!$ing TCS only goes to 12mcs - fergit 20m
o - The external 'atu' for use on short ant.s under 2mcs (see book)
0 - if u crank out all L on front panel & switch out the 'xtra c,'
then u have output ala 'swinging link' (called variometer in
one response).* So a variable C in series with output will cancel
link L & u can load her right into a coax cable. Does 66'
cf dipole strike a chord?
--OR--
Just take any 15 ft or there abouts near-vertical wire & load her up
per book on 7mcs. Antenna MUST connect directly to panel post
since, contrary to folklore, that rotary inductor &
switchable cap IS the 'base loading coil' for the vertical that
starts right there.
Without a ground system (counterpoise) you'll get some RF on the
mic, but at 12Watts output.... c'mon, you're tough as a
lumberjack
Hope that's OK
'rm
*the output networks in command sets, TCSen, etc. are design triumphs.
they're meant to work with most anything & the antenna IS CONSIDERED
to start at the tx. This is the most profoundly disunderstood item
in hf mil-box tx civvy re-use. The most.
If you observe this stuff, you'll never be tempted to bust into such
a hf mil-box tx & 'improve the output circuit.'
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