Posted by S Andreason on
URL: https://www.es-forum.com/Smart-phones-cell-phones-do-they-pulse-tp2651032p2651188.html

Hi Mary,

Yes, and yes.
I can pick up individual cell phones 1/2 mile away on the Acoustimeter,
when not drowned out by a cell tower.
And they do send out "Here I am" periodically, which probably leads to
"any new messages?"

Stewart


epicsconartist wrote:
>  Could it have come from the phone in her car?  Does anyone know if these newer generation phones send out periodic pulses like this, and would they reach that far into the house if her car was in the driveway?
>
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