Sec.  15.15   General technical requirements.

   (a)  An  intentional or unintentional radiator shall be constructed in
   accordance  with  good  engineering design and manufacturing practice.
   Emanations from the device shall be suppressed as much as practicable, but
   in no case shall the emanations exceed the levels specified in these rules.

   (b) Except as follows, an intentional or unintentional radiator must be
   constructed  such  that the adjustments of any control that is readily
   accessible  by or intended to be accessible to the user will not cause
   operation  of  the  device in violation of the regulations. Access BPL
   equipment  shall  comply  with the applicable standards at the control
   adjustment that is employed. The measurement report used in support of an
   application for Certification and the user instructions for Access BPL
   equipment shall clearly specify the user-or installer-control settings that
   are required for conformance with these regulations.

   (c) Parties responsible for equipment compliance should note that the limits
   specified in this part will not prevent harmful interference under all
   circumstances. Since the operators of part 15 devices are required to cease
   operation should harmful interference occur to authorized users of the radio
   frequency spectrum, the parties responsible for equipment compliance are
   encouraged   to  employ  the  minimum  field  strength  necessary  for
   communications, to provide greater attenuation of unwanted emissions than
   required by these regulations, and to advise the user as to how to resolve
   harmful interference problems (for example, see  Sec. 15.105(b)).

   [ 54 FR 17714 , Apr. 25, 1989, as amended at  70 FR 1373 , Jan. 7, 2005]