MIL-STD-449D (NOTICE 1), MILITARY STANDARD: RADIO FREQUENCY SPECTRUM CHARACTERISTICS MEASUREMENT OF (18 MAY 1976) [SUPERSEDING MIL-STD-752]

MIL-STD-449D (NOTICE 1), MILITARY STANDARD: RADIO FREQUENCY SPECTRUM CHARACTERISTICS MEASUREMENT OF (18 MAY 1976) [SUPERSEDING MIL-STD-752]. To all holders of MIL-STD-499d, Make the following Pen and Ink Changes.