20-111 - Communication Interference Caused by Unintentional Keyed Microphones

Date Issued

October 10, 1980

Responsible Office

AFS-350

Description

Alerts the aviation community to the potential hazards created by unintentional keying of microphones resulting in radio transmissions from airborne, mobile, and ground based radio transmitters and gives guidance on alleviating ensuing hazards.

• AC20-111.pdf (PDF)