[Elecraft] EFHW

[Bill Leonard N0CU]

The reason your antenna was a lot less finicky with a bit of coax is that the
EFHW antenna requires a return path for the RF field. Theoretically, without
a return path, the antenna won't radiate at all. The recommended setup for
this antenna is for a .05 wavelength counterpoised to be used. EZNEC models
indicate that there is little benefit to going much longer than .05
wavelengths, and a quarter wavelength is actually less effective than the
shorter lengths.  If no counterpoise is used, then coax shield becomes the
counterpoise by default.

Bill  N0CU



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