Lots of spectrum analyzer apps available for Android and iPhone. You can get an inexpensive calibrated mic from Parts Express. Pink noise can come from an app, CD or Vinyl. Do not use interstation noise.
White noise from FM is equal energy per frequency.
Pink noise is equal energy per octave.
Big difference, as white noise is much brighter - as energy doubles with each octave. Measurements made with white noise are all wrong, as the curve rises at 3dB/Octave from 0. 63Hz is 12 dB lower than 1KHz.