GSM-noise "buzz" issue

Werner Almesberger werner at
Sun Sep 21 15:29:36 CEST 2008

Andy Green wrote:
> One interesting thing would be stick a tracking generator on the GSM
> antenna, put it near the headphone socket in a repeatable way, stick
> spectrum analyzer probe on the victim net, and sweep them to get a
> display of coupling efficiency vs frequency.

Do you think this will work ? I thought of using a tracking generator
when I wrote that mail lamenting that Joerg didn't have a signal
source, but then I realized that almost all tracking generators have
their maximum output at about 0dBm, while our troublemaker should be
more like 30dBm.

Of course, it can't hurt to give it a try while you have the

- Werner

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