GSM-noise "buzz" issue

Andy Green andy at openmoko.com
Fri Oct 31 03:18:32 CET 2008


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Somebody in the thread at some point said:

| That's effectively what I did.  I attached teflon tape to the bottom of
| the connector to isolate it. The buzz is still present.

Angus, I talked to Candy here in .tw the last few days about this, she
actually did the work to perform the tests Joerg is talking about.

One thing you can try that is quite simple and easy is to override
MICBIAS net by a ~1.5V battery on it to 0V.  She told that this alone
removes the buzz, it would be good to know if you can reproduce.

- -Andy
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