[Lowfer] " XR " Top Hat finally finished

Andy - KU4XR ku4xr at yahoo.com
Wed Sep 15 21:00:19 EDT 2010


Hey everyone:

I finally finished what is to be the Top Hat for my lowFER antenna.
After deciding to use circumference wiring instead of radial
wiring for the Top Hat, I was pleasantly surprised with the measured
capacitance to ground when I connected it to the radial system using
a run of wire. The Top Hat mounted on its 14 foot pipe was about 
15 feet away from the radial connection point, so maximum capacitance
was not seen because the Top Hat was not directly over the connection
point for the radial system. Measured capacitance was fluctuating 
between 180pF, to 220pF. That was more than I expected, so I am
happy so far. I have no idea what the capacitance will be when I get
it mounted on the antenna, and raised to 40 feet AGL. Definitely lower.
Here is a link to the photos of the finished Top Hat if you would
like to view them:

http://ku4xr.webs.com/apps/photos/album?albumid=9876191

73 to all for now:
 

Andy - KU4XR - EM75xr - Friendsville, TN. USA
LOWfer Beacon " XR " @ 185.29875 KHz ( QRSS-60 )

*** Temporarily OFF, while constructing a new antenna ***

Coordinates:  N:  35º 43' 54" - W:  84º 3' 16"
http://www.myspace.com/beaconxr


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