[Lowfer] rx loop copuling

[John Andrews]

Dex,

If you decide to tune it, turn that transformer around.

JA

On 11/30/2010 12:37 PM, Dexter McIntyre W4DEX wrote:
> Thanks for all the comments and suggestions.  I presently have a 77 type
> core transformer with 25t to the coax, 75 turns on the antenna.  I put
> this antenna up just to try something different thinking that getting
> 400 feet from the house would be quieter.  Also because I have several
> 500 foot rolls of high quality 75 ohm coax.  The coax was used for
> restoration of buried transcontinental telcom cables.  It is just
> slightly smaller than RG-11, has double shield of very fine braid wire
> and a slick, tough vinyl jacket.  It was designed to temporarily restore
> service around a cable failure.  The antenna wire may not be WD-1 but it
> does appear to be the same as what I remember stringing while in the
> army.  It is has solid conductors that appear to be steel plated with
> copper.  I did an Ohm meter test just to verify continuity after string
> the antenna but don't recall the resistance.  I'll measure that when I
> make the next change at the feed.  The main frequency range of interest
> is VLF up to 190 kHz.  I suspect I won't be satisfied without tuning the
> antenna to resonance at whatever the current desired frequency may be.
> That's one thing that has impressed my about LF, resonance rules!
>
> More later,
> Dex
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