Re: [IRCA] ââ"Science Fiction PL-380"-- Pest Control Version

[Walter Salmaniw <canswl@xxxxxxxxx>]

That was my mistake.  A 30 ' random wire fed into the SDR IQ yielded only a
handful of 9 kHz split stations, and lots of noise.  Next time!
73,....Walt

On Sun, Jan 24, 2016 at 7:01 AM, coffee_canuck <coffeecanuck@xxxxxxxxx>
wrote:

> Whenever I've taken an ALA100 to Hawaii I've been overwhelmed with its
> performance - 2 to 4 stations on every 9 kHz split -- and just using a 9 -
> 12 foot loop of wire...
>
> Colin Newell - CoffeeCrew.com - VA7WWV - Victoria - BC
>
> > On Jan 23, 2016, at 10:10 PM, Walter Salmaniw <canswl@xxxxxxxxx> wrote:
> >
> > Sigh!  A good idea, but as you say, a small diameter Wellbrook loop fits
> > the bill nicely, except for the lack of backside suppression, which is
> less
> > of an issue at Rockwork.  After my poor experience of a random wire to a
> > SDR-IQ in Hawaii, I'm going to seriously look at bring a Wellbrook along
> on
> > my next exotic trip.  I'm sure the results will be far better.
> 73,...Walt
> >
> >> On Sun, Jan 24, 2016 at 4:16 AM, Guy Atkins <dx@xxxxxxxxxxxxx> wrote:
> >>
> >> Hi Walt,
> >>
> >> To my knowledge no one has perfected a broad band FSL that works with
> >> anything close to the performance of a single channel, carefully peaked
> >> version. This has often been a topic of discussion between Gary and
> myself.
> >> The broad band FSL I made a few years ago in the end turned out to be
> FAR
> >> below the sensitivity of a tuned FSL. This FSL used a Wellbrook FLG100
> >> module as a matching device and amplifier. In use at home I thought it
> was
> >> working well, but on a DXpedition it was sorely lacking vs. a Wellbrook
> >> 1-meter active broad band loop.
> >>
> >> Different matching ratio transformers have been tried without much
> success.
> >> A tuned FSL is like any other inductively coupled loop in that it's a
> >> resonant circuit, and gain goes up sharply at the expense of
> bandwidth...
> >> not of much use for broad spectrum SDR captures!
> >>
> >> 73,
> >>
> >> Guy Atkins
> >> Puyallup, WA
> >>
> >>
> >>
> >>> ---------- Forwarded message ----------
> >>> From: Walter Salmaniw <canswl@xxxxxxxxx>
> >>> To: Mailing list for the International Radio Club of America <
> >>> irca@xxxxxxxxxxxxxxxx>
> >>> Cc:
> >>> Date: Sun, 24 Jan 2016 01:52:37 +0000
> >>> Subject: Re: [IRCA]
> >>> ââ
> >>> â"Science Fiction PL-380"-- Pest Control Version
> >>> Fellas, I'm interested again with the removal of the variable tuning
> >>> capacitor and use for broad spectrum Perseus SDR captures.  As you
> >> recall,
> >>> a number of these early large units were kindly built by Gary.  One was
> >>> sent my way (and I may have the same in Masset).  Results have been
> >>> variable.  Would anything different be done with these units compared
> to
> >>> what we know today?   73,...Walt
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