[TowerTalk] WSW beverage noise reduction

Pete Smith n4zr@contesting.com
Wed, 29 Mar 2000 10:23:35 -0500


At 05:10 PM 3/29/2000 +0200, i4jmy@iol.it wrote:
>
>Your Beverages are nearly normal to each other whose fact might well 
>explain an opposite rejection or sensitivity to a particular signal or 
>noise.
>Selecting a terminating resistor that matches antenna (here seen as a 
>line) impedance to itself is a good practice but doesn't cure if the 
>beverage lenght and height are not the best to enhance F/B or wanted 
>rejections.
>It's also possible that the "incriminated beverage" is coupling to 
>another antenna, or something else behaving like an antenna, that is 
>actually inducing noise and unwanted patterns in the beverage.
>A vertically polarized antenna shouldn't be close the beverage.
>Concerning the "predominant noise direction" this is typical of 
>artificial noises and much less common with weather realated radio 
>noises. 


What Mauri says about coupling and other degraders of Beverage performance
is no doubt true, but here in the eastern US it sure seems as if the SW
quadrant is noisier on average than the others.  I notice this often with
my lazy-vee parasitic array on 80m., and wonder if others with 4-squares or
equivalent confirm this.

73,  Pete N4ZR

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