Re: [IRCA] DKAZ questions

[Don Moman VE6JY <ve6jy.1@xxxxxxxxx>]

before my FLG100 arrived I used a 16:1 transformer (BN73-202 core) and the
DXEng RPA-1 preamp.  It seemed to work fine and when I changed to the
FLG100 I don't recall any significant changes.

I plan to revisit this when/if I get my four  DKAZ system (1 in each
direction) installed.  Plan is to have a 16:1 at each DKAZ fed back thru 75
ohm to a center switch point with the RPA-1.  Perhaps this will get put up
this fall yet. Maybe.

73 Don
VE6JY

On Fri, Oct 7, 2016 at 3:36 AM, Chuck Hutton <charlesh3@xxxxxxx> wrote:

> But what I'd like to know is whether a homemade 16:1 transformer and a 20
> dB 50 Ohm preamp work just as well. They would cost a lot, lot less, but (I
> assume) give up a small amount of gain.
>
>
> Chuck
>
> ________________________________
> From: IRCA <irca-bounces@xxxxxxxxxxxxxxxx> on behalf of Nick Hall-Patch <
> nhp@xxxxxxxx>
> Sent: Thursday, October 6, 2016 7:02 PM
> To: Mailing list for the International Radio Club of America
> Subject: Re: [IRCA] DKAZ questions
>
> Agreed.    They do cost a fair amount (mind you the exchange rate
> with the pound isn't bad right now), but are solidly built and work
> very well.   Money well spent.
>
>
> best wishes,
>
> Nick
>
> At 22:17 06-10-16, you wrote:
> >I very strongly recommend the Wellbrook FLG100LN, They go right at the
> >antenna and replace your xfmr. Now what is picked up by the antenna is
> >amped 22 dB whereas what is picked up by the coax is not amped at all.
> >
> >I have two of these and they've survived IL weather for over 3 years.  73
> >KAZ Barrington IL
> >
> >On Thu, Oct 6, 2016 at 4:29 PM, Mark Pettifor <mark@xxxxxxxxxxxxxx>
> wrote:
> >
> > > For those of you who have DKAZ antennas, which preamp do you use? Do
> you
> > > find it makes much difference whether you put it at the antenna or in
> the
> > > shack?
> > >
> > > I need to "finish" construction on mine. Right now, I have two 470-ohm
> > > resistors alligator-clipped together for the null end, and a hand-wound
> > > transformer (my first ever) on a core made of unknown material, to go
> from
> > > 940 to 50 into a 50-ohm feedline.... RG-8X, 150 feet. That is also
> > > alligator-clipped together. It was for testing, ya know?  :^)
> > >
> > > It's been pretty good as is, but I want to get it ready to survive the
> > > winter.
> > >
> > > BTW, it's amazing the amount of noise just a short length of RG-8X 100%
> > > shielded coax will pick up. I have it mostly on the ground, but have a
> > > small part of the run overhead for now (30 feet?) so I don't mow over
> it.
> > >
> > > I know this is probably all in the archives, but technology changes,
> what
> > > people consider the "best" changes as they learn from experience, etc,
> etc.
> > >
> > > Thanks!
> > >
> > > Mark Pettifor
> > > 140' DKAZ pointed south
> > > random wire sloping up to the NW about 150 feet long, non-terminated
> > > ELAD FDM-S2
> > > Near Goshen, IN
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> Nick Hall-Patch
> Victoria, BC
> Canada
>
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