Converted DOSD power supply to linear

Posted by jedas on November 22nd, 2011 | 0 comments

My gps unit was unable to lock stable signal. I’ve found out that interference source was DOSD swithing power supply unit. I’ve removed it, and inserted linear 3.3V voltage regulator (LM1117-3.3). Works like a charm. Stable satellite lock near window where was no at all.

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