Those numbers I gave don't include all those variables. Some of the
variables like ground quality were included as a average value. Those
last models do not include all the possible variables because I don't
know what each person has. Once you know that, then the model can be
modified to include those other items. If you locate a large tower
directly behind any of these antennas they will not perform the same.
Exactly what that item is can change the results by a large amount.
This is not a typical situation so it is not analyzed as typical,
however the model can be modified to include it.
Knowing what items effect the performance and when those items should be
included into the model is all a part of learning how to use the
software. Another item which also have to be learned is how to test the
results to make sure you haven't exceeded the capability of the analysis
tool. These two items are also the area where most people misuse the
software.
Jerry, K4SAV
Richards wrote:
> That places a lot of faith in the modeling software. How does one
> know that sort of faith is warranted, given the number of variables that
> can alter the results in reality? How does the modeling program account
> for, and accommodate, all those variables? How do we know the
> modeling is really accurate in all real life situations? Won't the real
> situation contain variables, such as different soil and humidity
> conditions, for example, and other differences different locations
> present?
>
> (Not an argument, a legitimate and serious real question.)
>
> /////////////// Thanks -- K8JHR ///////////////
>
> =================================================
>
> K4SAV wrote:
>
>>
>> If you model these antennas you can go thru a lot of configurations
>> in a lot less time than it takes to build one and try to evaluate it.
>
>
> You can also optimize
>
>> all these parameters to produce a loop best suited for your
>> purposes. You can't do that by obtaining testimonials,
>
>
> ==================================================
>
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