[TowerTalk] 4-sqr & terrain

[Brian Smithson]

Thanks for the notes, Jim - it is for 80m. Sorry I didn't include that detail!

73,

-Brian n8wrl 

> -----Original Message-----
> From: towertalk-bounces at contesting.com 
> [mailto:towertalk-bounces at contesting.com] On Behalf Of Jim Lux
> Sent: Thursday, September 29, 2005 8:27 PM
> To: n8wrl at arrl.net; TowerTalk at contesting.com
> Subject: Re: [TowerTalk] 4-sqr & terrain
> 
> At 04:48 PM 9/29/2005, Brian Smithson wrote:
> >Hello Group!
> >
> >I'm trying to pick the best spot to site a 4-square on my property. 
> >I've got about 12 acres to play with but there are various 
> obsticles - 
> >two towers, a barn, pond, steep hills, etc. It slopes in 
> various places 
> >but the most-level spot may become an arena for horses. My 
> question is, 
> >how sensitive is the pattern to differences in height of the 
> verticals? 
> >That is, can the bases be ~3 feet difference in level from 
> each other?
> 
> 
> first question.. is the 4 square for 80m (in which case 3 
> feet is in the
> noise) or for 2m, (in which case it's not...
> 
> if you're on 40m, a quarter wavelength is, what, about 33 ft, 
> so you're talking 1/40th of a wavelength with 3 ft.. probably 
> not an issue. Probably not even an issue with 20m (unless you 
> have some sort of exotic phasing system that will be picky 
> about tiny changes in mutual Z, and then, you have much 
> bigger problems to worry about)
> 
> I'd guess that the small scale slopes will have less effect 
> than other things around (horses, towers, etc.).
> 
> It's actually,  
> 
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