[Milsurplus] Antenna for receiving Alexanderson alternator

[J Forster]

The untuned LORAN loop I've been using for many years is simply 4 nails driven
into the studs on a gable end of my attic in a square about 5 feet per side, then
a 250 ft spool of #14 THHN house wire was wrapped around the nails and both ends
connected to a chunk of RG-58 to the receiver. It works well for LORAN as I said.

The loop is not shielded, although it could easily be done with aluminum or
copper tape, and is apparently does not need to be with the Austron receiver I
used. There are to TV sets with CRTs located within 20 feet of the loop and the
Austron does not loose track for many months at a time.

Best,
-John



Al Klase wrote:

> A serviceable loop can be pretty simple, like a piece of multi-conductor
> shielded cable with the conductors wired in series and made roughly
> resonate at the appropriate freq with a fixed cap. Use a tap at the
> first turn for the output. You need a gap somewhere in the shield or it
> becomes a shorted turn. My Octoloop (see Google) contains two or three
> turns of CAT-5 wired in series. Signals and atmospheric noise are strong
> down there so you probably don't need to be sharply tuned or use an
> amplifier. If you can hear 'spherics rather than buzz you're making progress
>
> Go for it, Mike! You're in a good location.
>
> Al