On Thu, 4 Dec 2008 21:59:34 -0800 (PST), Ginu
wrote:

anyone?

You appear to be contradicting yourself:
P_required... translates to a transmit power of 1 mW.
....
However, 1mW happens to be the maximum transmit power
However?

As for:
I hope my math is clear.
If your conclusions for these case tests depart from rational
expectations; then you have one of two possibilites:

1. Your math may be clear, but wholly invalid (transcription error of
complex formulas into ascii text is a bummer);

b. Your math may be clear or murky, and otherwise entirely correct,
but you did it wrong.

iii. You suffer from transcription AND "plug-n-chug" errors;

four. Zigbee technology doesn't work.

If this is a classroom problem, you need to resolve it yourself. If
this is an engineering problem, what did the Zigbee help-line offer?
There's probably a simple nomograph posted at their website or in
their application notes.

73's
Richard Clark, KB7QHC