a. EMC involves predicting and controlling interference.
It results in
signal systems operating without unacceptable degradation.
b. EMI is a disturbance that interrupts, obstructs, degrades, or limits
the performance of electronic or electrical equipment. It can be natural,
man-made, or mutual interference.
They are atmospheric
(b) Eruptions on the sun or other stars cause solar and cosmic
(c) Charged particles in the atmosphere cause precipitation static
(d) The medium through which radio waves are propagated causes
also a form of man-made interference.
(3) Mutual interference occurs when one C3 system interferes with
c. EMP is caused by a nuclear
d. Radio operations in unusual climatic and atmospheric conditions pose
special and unique situations for operators.