[BC] Assistance with a tall tower

[Richard Fry]

> 1240Khz on a guyed 310 foot tall / two foot face triangular tower.

> Any "guestimate" on the series feed R and j ?
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By a quick NEC analysis, a ballpark estimate is about 350 +j 360 ohms.

The charts in Laport's "Radio Antenna Engineering" show about the same thing 
(link below).

   http://i62.photobucket.com/albums/h85/rfry-100/Laport_Scans.gif

The IDF at 1 km for 1 kW of applied power should be about 340 mV/m.

RF