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Taking performance to a new peak

Quick Start Guide

8201A

 

Modulation Analyzer

PN: 98407700A

Summary of Contents for 8201A

Page 1: ...Taking performance to a new peak Quick Start Guide 8201A Modulation Analyzer PN 98407700A ...

Page 2: ...ent to use This document briefly describes the operat ing information for the Model 8201A Modulation Analyzer and all 8201A S variants including the descriptions of the front and rear panel controls displays connectors option selections and instructions for local and remote modes of operation Typical measurement situations are also described The 8201A is an updated version of the discontinued Mode...

Page 3: ...Displays and Operating Controls 5 Getting Started 5 Getting familiar with Function Keys 10 Getting familiar with Data Keypad 10 Getting familiar with Measurement Control Keys 11 Other Keys 12 Displayed Messages 13 Special Functions 13 Calibration and Performance Tests 14 ...

Page 4: ...IMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT NESS FOR A PARTICULAR PURPOSE Boonton will not be liable for any incidental damages or for any consequential damages as defined in Section 2 715 of the Uniform Commercial Code in connection with products covered by the foregoing warranties Safety and Caution Summary The following general safety precautions must be observed during all phas...

Page 5: ... listed in Table 1 Table 2 and shown in Figure 2 and Figure 3 Figure 1 8201A Modulation Analyzer Displays Getting Started The following instructions walk through a basic operation and func tionality tests to verify that the unit is working properly 1 Turn ON the instrument and press LCL INIT key 2 After a while the FREQUENCY LEVEL display will show up with 8201A firmware reference number and the o...

Page 6: ...nd it displays modulation in for AM kHz for FM deviation and RAD for PM deviation Also displays ratio in or dB BUS Status display 4 Displays current IEEE 488 bus status REM remote enabled LSN listener ad dressed TLK talker addressed and SRQ service request active SPCL PRGM display 5 The SPCL PRGM display is an entry only display which is two characters wide and display the current program number o...

Page 7: ...andpass filter Selects the 30 Hz high pass or CCIR bandpass filter Selects the 300 Hz high pass or CCIIT bandpass filter Selects the 3000 Hz high pass or C MSG bandpass filter Toggles filter selection from high pass to bandpass Low pass Hz keys 3 15 20 50 220 11 Selects the 3 kHz low pass filter Selects the 15 kHz low pass filter Selects the 20 kHz low pass filter Selects the 50 kHz low pass filte...

Page 8: ...fore 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 Se...

Page 9: ...nal to external test equipment AM out connector 7 Provides a means for connecting the demodulated AM signal to external test equipment DIST out connector 8 Provides a means for connecting the distortion analyzer signal output to external test equipment EXT REF connector 9 Provides a means for connecting an external 10 MHz frequency standard to the internal time base circuits Optional CAL OUT conne...

Page 10: ...described as below The top row of illuminated switches are the function keys These keys are used to select the parameter to be displayed and to enable the data keypad for subsequent data entry The functions are carrier FREQ carrier LEVEL audio SINAD audio FREQ audio DIST AM FM PM SPCL and PRGM The LED in the switch of the selected function will be illuminated continuously the others will be off un...

Page 11: ...switch will cause the selected filter to be placed into the measurement channel and cancel any other selected high pass filter Similarly depressing any low pass filter will cause the selected filter to be placed into the measurement channel and cancel any other selected low pass filter Figure 6 Measurement Control Keys of 8201A Modulation Analyzer HIGH PASS Filter keys Depressing any high pass swi...

Page 12: ... be used with any detector In operation as modulation measurements are made the larger of the current measurement or the previous measurement becomes the displayed modulation Depress the HOLD key to activate this mode and then depress the key again to cancel Other Keys Figure 7 Other Keys of 8201A Modulation Analyzer RATIO Key The RATIO key is an alternate action key which changes the active displ...

Page 13: ...ake about 80 seconds to complete The AM detector is cali brated first followed by the rms detector the FM detector and finally the PM detector If calibration error occurs they will be displayed as the particular is being calibrated Displayed Messages UNLOC message When the Model 8201A unlocks the FREQUENCY LEVEL display will be overwritten with the UNLOC message and the AUDIO and MODU LATION displ...

Page 14: ...y PM 1 0 accuracy FM Calibration The calibration process consists of 1 Applying to the FM discriminator in alternation two accurately controlled frequencies 2 Measuring the resulting recovered modulation information 3 Computing a correction factor for subsequent FM measure ments AM Calibration The operation of the AM calibrator is similar to that of the FM calibrator For detailed theory of operati...

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