Here is the web page you requested: http://www-pw.physics.uiowa.edu/~jbg/gllvalues.html A few notes about the program: a) each line represents one frequency sweep b) E -> electric dipole antenna B -> search coil c) The HFR channels are always E d) The units are spectral density: E -> Volts squared / meters squared / Hertz B -> nanoTesla squared / Hertz