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@gmail.com>
To: "topband" <Topband@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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