Sec.  15.217   Operation in the band 160-190 kHz.

   

   (a) The total input power to the final radio frequency stage
   (exclusive of filament or heater power) shall not exceed one watt.

   (b) The total length of the transmission line, antenna, and ground
   lead (if used) shall not exceed 15 meters.

   (c) All emissions below 160 kHz or above 190 kHz shall be attenuated
   at least 20 dB below the level of the unmodulated carrier.
   Determination of compliance with the 20 dB attenuation specification
   may be based on measurements at the intentional radiator's antenna
   output terminal unless the intentional radiator uses a permanently
   attached antenna, in which case compliance shall be demonstrated by
   measuring the radiated emissions.