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Message-ID: <919606.19159.qm@web86505.mail.ird.yahoo.com>
Date: Wed, 17 Mar 2010 01:40:05 +0000 (GMT)
From: ALAN MELIA <alan.melia@btinternet.com>
To: rsgb_lf_group@blacksheep.org
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Subject: Re: LF: 8.97kHz antennas
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Hi Mike Yeah, but coupling to 1000 miles of power distribution system woul=
d be regarded a cheating by some.......and not really repeatable :-))

Alan G3NYK


--- On Tue, 16/3/10, Mike.WE0H <we0h@gmx.com> wrote:

> From: Mike.WE0H <we0h@gmx.com>
> Subject: Re: LF: 8.97kHz antennas
> To: rsgb_lf_group@blacksheep.org
> Date: Tuesday, 16 March, 2010, 20:23
> Maybe those cables & pipes would
> radiate some of the signal? Whatever is used to make the
> signal go far away is fine. It just might be worth a try to
> see if the ground loop works in the city. Just like you guys
> figured out how to make a LF antenna radiate good enough
> with your tiny backyards, this VLF antenna might work good
> enough with all the cables, pipes & buildings in the
> city. Out in the country in the open is always best but to
> figure out how a city dweller can get out on the VLF band
> with an antenna in his backyard, this could get more guys on
> the air. Any antenna is better than no antenna, we have all
> heard that phrase before.
>=20
> Mike
> WE0H
>=20
>=20
>=20
> Roger L wrote:
> > Thanks Alan.
> >=20
> > Yes I can understand that poor ground conductivity
> would result in a larger loop within the ground and that
> with high conductivity the loop would be very small. With
> regard to piping and cables, I'm thinking that any such
> tests would have to be done well away from buildings and
> property ideally in the middle of a large field out in the
> country or on a stretch of moorland perhaps well away from
> cables and pipes. In an urban area cables and pipes are
> everywhere and anything could be happening.
> >=20
> > 73s
> > Roger G3XBM
>=20
>=20