Topband: Sanity Check on K9AY Loop Sensitivity

[Joel Gray]

Hi Pete,
If you are using the blue Array Solutions control box, it is my
recollection that when you switch on the preamp, it also adds a BCB filter
to the signal path.
73, Joel
N9LQ


On Mon, Dec 12, 2022 at 9:11 AM Frank W3LPL <donovanf at starpower.net> wrote:

> Hi Pete,
>
> Any preamp that has loss definitely needs repair.  Preamps are simple
> devices that are easy to troubleshoot, the transistor is a likely
> culprit
>
> 73
> Frank
> W3LPL
>
> ----- Original Message -----
> From: "Pete N4ZR N4ZR" <pete.n4zr at gmail.com>
> To: "topband" <Topband at contesting.com>
> Sent: Monday, December 12, 2022 2:59:09 PM
> Subject: Topband: Sanity Check on K9AY Loop Sensitivity
>
> I just deployed my K9AY loop (yes, I know I'm late).  Anyhow, while it
> shows substantial directivity on broadcast stations, I was surprise by
> how much the K9AY loop's sensitivity suffers compared to my inverted L.
> Listening to a broadcast station with the K9AY on 1500 KHz, the station
> is S6-7 in the right direction and S3 in the reverse. and S9 +10 on the
> inverted L. There's also something haywire in the K9AY's preamp, which
> *reduces* signal by a couple of S-Units.  Could be I need to replace the
> transistor?
>
> --
> 73, Pete N4ZR
> One of the RBN team
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