I’d be interested in hear about this also. I’ve always used ground
radials for my INV-L but this year I’d like to try an FCP.
I’ve read that the INV-L as well as the FCP need to be floated during
receive, which means two relays at the INV-L.
73 Mark K3MSB
On Thu, Jul 25, 2019, 4:11 AM CUTTER DAVID via Topband <
topband@contesting.com> wrote:
> Guy
> Slightly OT, but how do you deal with re-radiation from your inverted L?
> I'm about to erect one of your inverted L on FCP and my rx loops are about
> 50m away in the other corner of the field. Is that far enough?
> David G3UNA/G6CP
>
> > On 24 July 2019 at 07:13 Guy Olinger K2AV <k2av.guy@gmail.com> wrote:
> >
> >
> > I gotta agree with Rob. An inverted L aerial wire will hear ALL the noise
> > that is around. Mine sure does. RX antenna will help enormously if there
> is
> > a place to put one that does not get the noise second hand off the L. Not
> > enough room? A bit complicated, but "repeated" noise off the L can be
> dealt
> > with.
> >
> > The worst noises around here heard on my L were all repaired by the power
> > company. The nastiest noise was very hard to find, I actually never
> "found"
> > it by looking for it. Noise turned out to be from a bad splice in an
> > underground 13 kV cable going from the 13 kV delta overhead out on US 64
> to
> > the transformer for my eastern neighbor and next house over. It would
> come
> > and go with extended cold weather, but never would correlate to sunlight
> or
> > darkness. I would hear it next to my transformer walking around with my
> > battery K2 and a rubber ducky. It would never locate to up on a pole
> (only
> > power noise that didn't).
> >
> > Finally the splice hard-arced, exploding the fuse up on the pole for the
> > neighbor's 13 kV feed, and taking those two houses off the grid. The
> noise
> > went away with the cannon shot noise. Blessed quiet on 160 and 80. I had
> > put up with that for almost four years.
> >
> > In the end, Duke Energy completely reran his AND my buried 13kV lines,
> and
> > replaced his transformer. 35 years in the ground, 35 year old cable
> design
> > and materials, and deficient in THEIR opinion. Was really fun to watch
> them
> > use this super-neat burrowing setup that went right UNDER the woods and
> the
> > creek (whole other story). Now I can hear the lesser noises on my L from
> > all over Apex and Cary :>) Need RX antenna for sure. That way I don't
> have
> > to listen to the Cary, NC noise (NE) at the same time as the generally
> > closer and louder Apex, NC noise (S, SE).
> >
> > 73, Guy K2AV
> >
> > On Tue, Jul 23, 2019 at 9:37 AM Rob Atkinson <ranchorobbo@gmail.com>
> wrote:
> >
> > > > Over past few months, I have picked up an S5-S7 noise signature on
> my TB
> > > inv
> > > > L antenna with K2AV FCP system.
> > >
> > > I would not use an inverted L for receiving. Unusable for rx at my
> > > QTH but FB for transmitting.
> > >
> > > 73
> > > Rob
> > > K5UJ
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