Interference (For Uus.a. Only) - HP -11C Owner's Handbook Manual

242 Appendix D: Battery, Warrranty, and Service
Potential for Radio/Television
Interference (for U.S.A. Only)
The HP-11C generates and uses radio frequency energy and if
not installed and used properly, that is, in strict accordance with
the manufacturer's instructions, may cause interference to radio
and television reception. It has been type tested and found to
comply with the limits for a Class B computing device in ac-
cordance with the specifications in Subpart J of Part 15 of FCC
Rules, which are designed to provide reasonable protection
against such interference in a residential installation. However,
there is no guarantee that interference will not occur in a
particular installation. If your HP-11C does cause interference
to radio or television reception, which can be determined by
turning the calculator off and on, you are encouraged to try to
correct the interference by one or more of the following
measures:
Reorient the receiving antenna.
Relocate the calculator with respect to the receiver.
Move the calculator away from the receiver.
If necessary, you should consult your dealer or an experienced
radio/television technician for additional suggestions. You may
find the following booklet prepared by the Federal Communica-
tions Commission helpful: How to Identify and Resolve Radio-
TV Interference Problems. This booklet is available from the
U.S. Government Printing Office, Washington, D.C. 20402,
Stock No. 004-000-00345-4.