Doesn't help you HEAR any better! Generally, on top band, even with my modest inverted- L with a few elevated radials, if could hear 'em I could work 'em! With 500 W. Best thing I ever did for myself was to put up some quiet terminated receiving loops, so I could hear much better!
73, Charlie, K4OTV -----Original Message----- From: Topband [mailto:[email protected]] On Behalf Of Carl Sent: Friday, August 15, 2014 12:39 PM To: Tom W8JI; 'TopBand List' Subject: Re: Topband: Modeling the proverbial "vertical on a beach" A 3CX15000B7 or similar makes up for a lot of things and especially to those who always want to be on top in a pileup or contest. Carl KM1H ----- Original Message ----- From: "Tom W8JI" <[email protected]> To: "'TopBand List'" <[email protected]> Sent: Friday, August 15, 2014 9:51 AM Subject: Re: Topband: Modeling the proverbial "vertical on a beach" > > For receiving, an absence of noise sources in the path is all the > difference in the world. As an example of this look at what N7JW and K7CA > did from the Utah desert area. Utah desert is like the anti-saltwater, and > they are located much further from Europe than the east coast with a worse > polar area path, yet they had outstanding results. Saltwater has the same > advantage, as do freshwater bodies, of a lack of noise sources in what > might be a desired direction. > > For efficiency (which only affects transmitting), the advantage is > primarily concentrated at low angles and primarily affects vertically > polarized systems. The question then becomes one of wave angle and > polarization. > > Then there is distance as a factor, and path loss related to the magnetic > poles, which are factors. > > A good station has a combination of everything going for it, but there is > no magic and there certainly isn't any 10 dB or more involved just from > being near saltwater. A few dB here and there from multiple factors are > what make the difference. Move 25% or 50% closer, get rid of noise sources > in the path, increase vertical antenna performance at low angles a few dB, > and get away from going past the magnetic poles and it is a winner. It > isn't from magic, and it isn't all from the presence of saltwater, and it > is not 10-20 dB by any stretch of the imagination. > > 73 Tom > _________________ > Topband Reflector Archives - http://www.contesting.com/_topband > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2014.0.4716 / Virus Database: 4007/8040 - Release Date: 08/15/14 > _________________ Topband Reflector Archives - http://www.contesting.com/_topband --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com _________________ Topband Reflector Archives - http://www.contesting.com/_topband
