Well see the reply which I got :) It is difficult to pursuade somebody who think knows everything. This time I need to prove, he is wrong as we had different type of conversation which he was definitely wrong but he just expleined himself that he is right. As it is my boss and I left him. But this is too much. I have been doing wireless for last 3 days and read many of charts like that and made perfect sence of them. as the APs are meant to be ceiling mounted it is understable that the signal will prapagate less through the back plate once it is on the ceiling. The heat map is confirming what you can read on the chart. I think he is just playing with words but as I got my education elsewhere I don't know the English terminology well enough to be able to compete in 'playing words' :) Anybody could help?
Much appreciated,
>> Hi Pete,
>> I followed up our conversation and I can confirm that the planes in this
>> document
>>
>> http://www.arubanetworks.com/pdf/products/DS_AP130Series.pdf
>>
>> are Elevation and Horizontal (or Azimuthal) patterns.
>
> I don't think so. There's nothing in the document to suggest that
> they're anything other than the standard antenna terminology, which
> means Electric Field Plane (E) and Magnetic Field Plane (H). That's
> basic antenna/RF engineering stuff. H is the symbol for magnetism.
>
> Besides, we both know that the radiation pattern from those APs is not
> spherical; it's roughly toroidal. If those diagrams were horizontal and
> vertical, they would be describing an almost perfect sphere.