Special Features:

Joint electronic type designation system item name and p/n: alarm set, anti-intrusion, restricted area p/n an/gss-20; usage design: radar transciever assembly; supplemtary features: 914 mhz freq

Properties:

Two or more different types of items having a common mounting or mounted on each other which together form a portion of an antenna but which in itself is not a complete functioning item and cannot be assigned a more definite item name.