Many analog telephones are susceptible to radiated fields. It's easy to
observe audible noise (the sine 1kHz modulation tone)when RF fields are
introduced under a laboratory test (IEC61000-4-3). Do you have any good EMC
design techniques which improve the resistance to such RF fields, when the
telephone enlosure is plastic material and wire is unshielded?
Thanks.

Best regards
Amund Westin


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