TWO-WIRE AUDIO ACCESSORY FOR TWO-WAY RADIOS
Original Publication Date: 1996-May-01
Included in the Prior Art Database: 2002-Apr-16
Two-way portable radios ohen are used with a remote speaker/microphone (spkr/mic) accessory. The cable used in present designs has four or more wires. Field failure data indicates that the primary cause of failure is associated with the cable. Either wires damage or their many solder connections fail. To keep a small cable size, the many wires are of a small size and are not physically strong. A way to improve reliability as well as cost and manufactur- ability is to reduce the number ofwires required.