>=20 > I tried then to replicate the problem in the lab placing two working (cal= ling > each other) GSM phones upon the ECU, but they caused no problem. Well I'v= e > collected 20 hours and 700km's of tests on a prototype with doubtful sold= erings, > I guess I can affirm the design is reliable now anyway. :D >=20 > Cheers, > Mario >=20 If this is a commercial product you should really test it for radiated=20 susceptibility at an EMC lab. /Ruben =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D Ruben J=F6nsson AB Liros Electronic Box 9124, 200 39 Malm=F6, Sweden TEL INT +46 40142078 FAX INT +46 40947388 ruben@pp.sbbs.se =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .