Hi Felipe, Suggest you examine this website:
http://n4dj.com/Beverage.html 73 Frank W3LPL ----- Original Message ----- From: "Filipe Lopes" <ct1...@gmail.com> To: "k1fz" <k...@myfairpoint.net> Cc: "topband" <topband@contesting.com> Sent: Wednesday, April 1, 2015 3:18:01 PM Subject: Re: Topband: BOG antennas Hello Bruce, This is a very interesting subject. I am about to "maybe" test a BOG here at my French QTH and I am wondering if there are any tests made with best terminating resistance (235ohm? ) should I use a 9:1 transformer or 10:1 ? how does it perform compared to a usuall beverage? Can I cross 2 BOGs for 2 directions or more? will this affect the antenna pattern? I recently built an W7IUV preamp, will it be OK for the BOG ? Thanks in advance. 73's Filipe Lopes CT1ILT - CR6K F4VPX - TM3M 2015-04-01 16:43 GMT+02:00 k1fz <k...@myfairpoint.net>: > To BOG, or not to BOG, that is the question. > > Many are aware of the good, and bad points of the antenna. > > Good: > Is out of sight. > Requires a small space to function well > Typically has less noise than an above ground Beverage > As disturbed condx (QRN crashes) begin, it can be the quietest antenna. > > Bad > The Pattern can be poor if its too long. > Can be tough on a lawn mower. > > Note: Above ground Beverage antennas can cross as the low ~470 ohm > impedances do not couple well. > A typical BOG antenna has an even lower impedance of ~235 ohms and really > does not couple well to > other antennas, metal objects. ( I still avoid going over the radial > field.) > > > 73 > Bruce-K1FZ > For more info, try a BOG antennas search. > > Not an April 1st joke ! > _________________ > Topband Reflector Archives - http://www.contesting.com/_topband > _________________ Topband Reflector Archives - http://www.contesting.com/_topband _________________ Topband Reflector Archives - http://www.contesting.com/_topband