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" <[email protected]> To: "160" <[email protected]> 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 _________________ Topband Reflector Archives - http://www.contesting.com/_topband _________________ Topband Reflector Archives - http://www.contesting.com/_topband
