Re: [IRCA] DKAZ questions

[Jim B <jim01028@xxxxxxxxx>]

>
> âI use a quantum phaser and a home brew amplifier with a dkaz and super
> loop. A couple of local stations on 560 and 730 ( both 5 kw) overload it
> and show upon other frequencies unless I attenuate the output. The first
> thing I did was to remove the amp from the antenna end of the coax and
> bring it inside. I then put 12:1 / 1:12 transformers at the ends of the 75
> ohm coax. Hardly any overload now.   Jim
>
>
> Message: 2
> Date: Sat, 08 Oct 2016 03:37:48 +0000
> From: Nick Hall-Patch <nhp@xxxxxxxx>
> To: Mailing list for the International Radio Club of America
>         <irca@xxxxxxxxxxxxxxxx>
> Subject: Re: [IRCA] DKAZ questions
> Message-ID: <19b59409581e16fcc168c1284be41b55@mtlp000083>
> Content-Type: text/plain; charset="us-ascii"; format=flowed
>
>
> >I find it hard not hear WBZ underneath the null (phase) on a
> >number of frequencies
>
>
> Please don't overlook the phasers Keith.  The Quantum is a fine
> phaser, but it is not meant to be baked by RF.   I'd look at that
> even before the Wellbrook amps.    Years ago it was noticed that John
> Bryant's Quantum on Orcas Island was yielding Vancouver, BC stations
> in many nulls.....they were 25 miles away, admittedly over salt
> water, and pretty much qualified as his nearest locals.
>
> If the other phasers also have active elements, I'd certainly suspect
> them as well.
>
> best wishes,
>
> Nick
>
>
> At 02:45 08-10-16, you wrote:
> >Agreed Andy.  Looking forward to getting it soon.
> >
> >To simplify my earlier post my current set up is as follows:
> >
> >Receiver: ELAD SDR
> >Antennas: 50x100 Switched Termination Superloop running NE/SW and an
> >ALA 1530S+
> >Phasers:  I've tried 3 and all exhibit the same issue with WBZ.
> >Quantum Phaser, mini DXP-mk2 and an NCC-1.
> >Due to the position of the superloop (basically bisecting the
> >yard)  the furthest I can place the Wellbrook is about 90-100 ft
> >from it (to the SE side of the yard)
> >When I get the new LN model I'll be able to separate that from the
> >1530S+ by about 130ft.
> >
> >Earlier this evening I placed my 1530 on the other side of the yard
> >(the NW side) and there was actually some improvement.  Tomorrow
> >night I'll try the Chris Scott Notch Filter on each line and see if
> >that also helps a little more.
> >
> >FM Phasing is a heck of lot easier and has spoiled me :)
> >
> >Keith
> >Hingham MA
>
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