It has been shown that a primary cause of VHF and UHF interference to professional condenser microphones is inadequate termination within the microphone of the shield of the microphone's output wiring, a fault commonly known as the pin 1 problem. Tests using only audio frequency test signals generally fail to expose susceptibility to radio frequency (RF) interference. Simple RF tests for pin 1 problems in microphones and other audio equipment are described that correlate well with EMI observed in the field.

Author: Brown, Jim
Affiliation: Audio Systems Group, Inc., Chicago, IL
AES Convention: 115 (October 2003) Paper Number: 5897
Publication Date: October 1, 2003 Import into BibTeX
Subject: Instrumentation and Measurement
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=12348

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