Boonton 8201 Modulation Analyzer Quick Start - Manual (Page 8)

8
Control, Indicator Or Connector Index Number Function
DIST key 15 Selects audio distortion measurement.
RATIO key 16 Alternate action key. Changes the active display from absolute to relative. Units
keys may be used to select displayed units.
AM key 17 Selects AM modulation as the active function.
Use before setting AM modulation reference for subsequent ratio measurement,
or to activate the AM modulation display.
FM key 18 Selects FM modulation as the active function.
Use before setting FM modulation reference for subsequent ratio measurement, or
to activate the FM modulation display.
PM key 19 Selects PM modulation as the active function.
Use before setting PM modulation reference for subsequent ratio measurement, or
to activate the PM modulation display.
SPCL key 20 Selects special function as the active function.
Use before selecting special function.
PRGM key 21 Selects instrument program as the active function.
Use before selecting program number for store or recall.
LCL/INIT key 22 Causes instrument to “go-to-Iocal” if local lockout is not active and remote is ac-
tive, or initialize when the instrument is in the local state.
STO key 23 Stores the instrument setup at selected program number.
RCL key 24 Recalls instrument setup from selected program number.
PEAK keys:
+key
-key
±key
25
Selects + peak detector for display.
Selects - peak detector for display.
Selects peak average modulation display. The display is ( + peak ( + ) -peak )/2.
QUASI-PEAK key 26 Selects CCIR 386-3 peak detector for display. The display is peak responding,
calibrated in RMS.
RMS key 27 Selects a true RMS detector for modulation display.
HOLD key 28 Alternate action key used to display the greater of the current or last modulation
reading.
CAL key 29 Causes the selected function to be calibrated. Active for carrier LEVEL, AM, FM, and
PM.
RF IN connector 30 RF input connector, used to apply an external carrier signal.
AF OUT connector 31 Audio output connector, used to connect the demodulated signal to external test
equipment.
LINE switch 31 Switches the instrument ac power supply ON or OFF.