[Lf] LF Antenna Report

'Geri' Kinzel, DK8KW DK8KW at compuserve.com
Sun Apr 23 14:21:52 CDT 2000


Hallo Frank,

have not had a look at the files you mention (but would love to see a
copy). However, exactly the sample you mention would interest me, too,
because that is exactly the configuration I use currently on 136 kHz.

>I would like for someone to work through a sample problem of a 60 foot
>tower at 136 kHz and 6 top hat wires.  We could, with his permission,
>build it at Ted's afterwards and see how well this data scales and how
>well it really does.  Any volunteers?

Well, not yet 6 top load radials but 5 only. But I plan to increase the
number to 6. At 45 degrees inclination, what is the optimum length? 

Currently I have an efficiency of minus 35 to 37 dB (I measured my ERP to
be 30 mW in up to 3 miles distance), does this match with the calculations?


Best 73, happy Easter Holidays!

Geri, DK8KW (W1KW)




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