Topband: Unwanted sginals and noise

[Donald Chester]

My Beverage uses a toroidal transformer with separate primary and secondary. 
  I ground the primary (antenna input)winding to a ground rod surrounded by 
a mini radial system of about 10 radials about 15'long.  After lightning 
wiped out the transformer, I rewound it and placed it inside an plug-in coil 
form, and unplug it when the ant is not in use, and so far, no more damage, 
even during several nearby hits this summer.

The secondary is not grounded at the transformer end, but it is grounded at 
the receiver end, to the station ground system, which is designed for both 
rf and lightning.  There are no chokes or ferrite installed along the 
feedline.

I notice that with the transformer unplugged, I hear extremely weak signals, 
almost completely buried in the background hiss.  Of course, when I plug in 
the transformer, the antenna comes alive.  I assume that if the coax feeder 
were picking up unwanted signal and noise, that it would still be present 
with the transformer unplugged. I notice little, if any difference between 
unplugging the transformer, and disconnecting the antenna with the 
transformer plugged in.  In any case, the signal pickup I get from the 
feedline-less-antenna is too small to significantly degrade the performance 
of the Beverage.

Don K4KYV

Does anyone disagree with the above assumption?

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