Quaoar hath wroth:

I challenge your 10% duty cycle on wireless. My Belkin router is
contantly transmitting, if I can believe the wireless activity LED. No
matter, this is not a personal challenge, just a search for reality.

See:
http://www.elliottlabs.com/documents/OFDM.pdf
The author measured peak and average power, using the ratio to
determine the average duty cycle. Flooding the pipe with lots of
traffic (i.e. streaming video) might result in perhaps 80-90%
transmission time, depending on whether it has to wait for
acknowledgements (TCP), or just spews data (UDP). However, typical
mixed traffic seems to have a very low duty cycle, which is where I
conjured my 10%. Duz this help or do you want more detail?

Also, the LED is NOT a direct indication that the device is
transmitting. The transmission times are so short, that the LED would
barely be visible if directly connected to the T/R switch. You would
only see a faint flicker. In order to see the flashing light better,
the designers implimented a pulse stretcher function, that extends the
time the LED is turned on, so that you could actually see the light.

I would be happy to duplicate the tests and post the resultant
oscilloscope pictures and calculations. It's actually a very simple
setup and test. However, I'm burned out and have a few things to do
tonite. Give me a few days as I'm planning to take some time off to
catch up on all my broken promises and chores.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558