"John Smith" wrote in message
...
On 1/30/2010 11:24 AM, Helmut Wabnig wrote:

...
Crack your cellphone and look at the antenna there.
Open your Bluetooth dongle.

Then calculate the lamda in air.


So what.
Ever heard about Epsilon?
http://en.wikipedia.org/wiki/Epsilon

w.

Exactly. My Bluetooth Dongle (and in no way representative of my real
dongle--either in size or performance! :-) ) is about the size of my index
finger nail. I'd imagine use of a suitable magnifying glass would allow
me to appraise the antenna it contains ...

Regards,
JS
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You would use a magnifying glass to examine an antenna in your dongle?