Description / Abstract:
All automatic altitude reporting digitizer equipment
manufactured under this standard shall comply with the requirements
as specified up to its maximum range as indicated on the equipment
nameplate.
The digitized altitude output shall be in accordance with "U.S.
National Standard for Common System Component Characteristics for
the IFF Mark X (SIF)/Air Traffic Control Radar Beacon System
SIF/ATCRBS and the International (ICAO) Standard Code for SSR
Pressure Altitude Transmission."