[Elecraft] Sloping Terrain vs Feedline Losses

[Wes Stewart]

Ok, but I'm unclear about what "improves radiation pattern" means. To paraphrase 
your other premise, "I'm not sure if it does or doesn't but if it does, I'm sure 
it's big" has me wondering.  But I wonder about a lot of things...


On 7/13/2016 10:38 AM, David Gilbert wrote:
>
> No, I didn't mean that.
>
> If sloping ground improves radiation pattern, it's going to be worth more than 
> 1 db.  Pattern changes of any sort typically have significant effect, whereas 
> one db is almost trivial (notwithstanding my own experiments on that on my 
> website).  I'm not saying that sloping ground actually has a significant 
> effect ... only that if it has any effect at all it is likely to be greater 
> than 1 db.
>
> Dave   AB7E
>
>
>
> On 7/13/2016 10:06 AM, Wes Stewart wrote:
>> I hope you meant much less than 1 dB.
>>
>> On 7/13/2016 1:49 AM, David Gilbert wrote:
>>>
>>> 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