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Coupler Measurements 91
*MICROPHONES—Special operational selections for your microphones.
Choices are NORMAL, REVERSE, and SPLIT. See Sections 3.8.4 and 3.8.5 for
more details.
*SPECTRUM WINDOW—When performing spectrum analysis of random sig-
nals such as speech or room noise, leave this ON. If you would like to perform
a spectrum analysis of a “phase synchronous” signal such as might be found in
one of our other instruments, turn this OFF. See Chapter 9 for more details.
*OUTPUT—Select which external source devices are enabled in the Coupler
Multicurve screen. The AUTO and SPEAKER selections enable only the speaker
jack. EARPHONE enables only the earphone jack. BOTH enables both the speak-
er and the earphone jacks. See Section 2.5.5 for details.
* only available when the USER LEVEL is set to ADVANCED in the Default
Settings menu. See Section 2.3.2 for details.