Frye FONIX FP40D - Manual (Page 139)

Calibration 131
7. PUSH F6 COMPEN (compensate) Probe. When the signal stops, the probe has been
compensated and the compensation has been saved.
8. To view the effects of compensation, EXIT MENU, adjust AMPLITUDE to 70 dB and push
START.
Note:
You may want to view the uncompensated differences between the two microphones. Follow
instructions 1-7 above. Interrupt the compensation process by pushing RESET shortly after you
hear the tones. Then follow instruction 8 above to view uncompensated differences.
Note:
If after Step 8 the differences between mics are unacceptable, try the process again, but level the
instrument between steps 7 and 8.
The compensation process can adjust for differences of up to 3.5 dB. If the difference between the
two microphones is more than 5 dB after calibration, consult factory.
IF YOU PUSH RESET DURING THE COMPENSATION PROCESS TO SEE THE UNCOMPENSATED
DIFFERENCES, YOU HAVE REMOVED THE COMPENSATION. IF YOU NOW WANT TO HAVE
COMPENSATED MICROPHONES, YOU MUST REDO THE COMPENSATION.