[Antennas] vertical noise

2003年3月14日 01:25:56 +0000

Kees,
I use a 40M quarterwave vertical elevated and isolated up a quarterwave 
(35') and use 4 quarterwave radials running in a near horizontal. I live in 
a rural location. When comparing to a dipole up at 60' the vertical 
noticably by ear and s-meter out does the dipole on DX outside the USA. For 
high angle signals the dipole out does the vertical, but not for all of the 
"more regional" signals. For noise I cannot tell a difference between the 
vertical and the dipole during the evening hours. During the daytime hours 
the dipole is noticably more noisy, by ear and s-meter. I am happy with the 
vertical elevated, it does work well and is easy to maintain.
Good luck on the antenna,
Ken, KA0W
>From: [email protected]
>To: [email protected]
>Subject: [Antennas] vertical noise
>Date: 2003年3月13日 18:14:21 -0600
>>The 80m band (sometimes 40m) is very noisy around here.
>>I've heard that a typical vertical, even with good ground radials,
>is quite noisy when compared to a dipole especially on 80m and
>40m. This is for both verticals on the ground with a good radial
>system and those elevated and using a counterpoise radial system.
>Also that most AC power distribution noise is vertically polarized.
>What are some comments by those who have used both ?
>>I'm constructing some really good counterpoise radials for a Butternut
>HF6V vertical about 20ft off the ground ...and am wondering if I
>wouldn't be better off elevating the center point and loading the
>"radials" (without the vertical, of course). At least I'll have a 1/2
>wavelength antenna on all the bands and can use ladder line.
>The vertical isn't a 1/4 wave on all the bands and the only advantage
>I can see is omnidirectional and a low radiation (DX) profile.
>>I don't want to go the "receive on a loop and transmit on a xxx" ...yet.
>>73 Kees K5BCQ
>- - -
>>Your moderator for this list is:
>Larry Wilson KE1HZ [email protected]
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