Hi Art,
Signals arriving at the BOGs are not travelling in the ground, therefore
their velocity of propagation (Vp) is unaffected by the ground.
B roadside spacing should be 350 feet.
Echelon spacing should be 70 to 130 feet, using W8JI crossfire-
echelon phasing. 140 foot spacing significantly increases the signal level
but produces slightly degraded RDF compared to 70 foot spacing.
http://www.w8ji.com/echelon-log_beverages.htm
The Vp of each BOG may be somewhat different, which may cause
some uncertainty when attempting to phase them. There is negligible
difference in the Vp of a pair of conventional Beverage antennas.
73
Frank
W3LPL
----- Original Message -----
From: "Art Snapper" <art@nk8x.net>
To: "160" <topband@contesting.com>
Sent: Thursday, October 1, 2015 1:28:15 PM
Subject: Topband: BOG question
I was thinking about phased BOGs.
Would the horizontal spacing and/or stagger between them, be reduced due to
the Vp change from ground proximity?
Art NK8X
ᐧ
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