IBM 1483 Operator's Manual page 3

This equipment complies with FCC regulations for EMI.
WARNING!
This equipment generates, uses, and can radiate radio
frequency energy, and, if not installed and used in accor-
dance with the manual, may cause interference to radio
communications. It has been tested and found to comply
with the limits for a Class A computing device pursuant to
Subpart J of Part 15 of FCC Rules, which are designed to
provide reasonable protection against such interference
when operated in a commercial environment. Operation
of this equipment in a residential area is likely to cause
interference, in which case users, at their own expense,
will be required to take whatever measures may be neces-
sary to correct the interference.
701344-003 iii