[Elecraft] Sloping Terrain vs Feedline Losses

[David Gilbert]

Agree on the coax losses, but totally disagree on both of your other 
comments:

1.  Elevated radials will ONLY help reduce near field ground losses ... 
they will do nothing to help radiation pattern.  The effects of ground 
conductivity determine far field pattern (given a particular profile) no 
matter what kind of radials he uses.

2.  If there is any gain benefit from the terrain profile at all, it 
will be much more than 1 db.

Dave   AB7E


On 7/12/2016 3:49 PM, Craig Smith wrote:
> Ted …
>
> I think you are overstating the coax losses.   Even stock RG-11 should be perhaps 0.3 dB/100ft on 80 meters - around 1.5 dB for the 500 ft. run.
>
> Even so, I would probably gravitate toward the closer location.  With the elevated radials, the effects of the ground conductivity should be minimal.   Not sure if ON4UNs data assume elevated radials or many on-ground radials.  It could be that his estimate of the sloping ground advantage is for the later.   With the closer location, you will have perhaps 1 dB stronger signal in all directions because of the lower feedline loss.
>
> 73    Craig   AC0DS