HP 8642A Operation And Calibration Manual page 131

Model 864 2A/B
Operation
MODULATION CONTENTS
Figure 3-11. Modulation-Related Functions
.... 3-96
MODULATION, AM .......................... 3-97
AM ........................................... 3-97
Table 3-17. AM Operating Characteristics ...... 3-97
INT .......................... . .......
3-98
How to Set AM with the Internal Source
(Using the Modulation Oscillator) ........... 3-98
EXT AC, EXT DC .............................. 3-98
How to Set AM with an External Source ...... 3-98
HP-IB Codes ............................... 3-100
Comments ........ . . 3-101
Table 3-18. Limitations on AM Settings With
Amplitude ............................... 3-102
Related Special Functions .................... 3-104
113. Modulation Frequency Correction Off ..... 3-104
248. Calibrate the Modulation Frequency Bands
Again ................... . .......... 3-104
MODULATION, FM ......................... 3-105
FM .........................................
3-105
Table 3-19. FM Operating Characteristics ..... 3-105
Figure 3-12. FM Deviation Limitations for each
RF Frequency Band; Modulation Frequencies
<1389 Hz ............................... 3-106
Figure 3-13. FM Deviation Limitations for each
RF Frequency Band; Modulation Frequencies
2:1389 Hz ... ................. . . 3-106
INT
. . . . . . . . . . . . . . . . . . . . . . . .. ............. .. 3-107
How to Set FM with the Internal Source
(Using the Modulation Oscillator) .......... 3-107
EXT AC, EXT DC ............................. 3-108
How to Set FM with an External Source ...... 3-108
HP-IB Codes. . . . . . . . . . . . . . . . .. . ........... 3-110
Comments ................................. 3-110
Table 3-20. Maximum FM Deviation Settings
with Only an External Source .... . . 3-112
Related Special Functions .................... 3-112
5. External Low Rate FM On ............. 3-112
112. Internal
+
External Low Rate FM On .. 3-112
6. FM Pre-emphasis On .................. 3-113
Figure 3-14. FM Deviation Limits with/
without FM Pre-Emphasis .............. 3-114
Table 3-21. Factor for Y-Axis FM Deviation
Quotient .............................. 3-115
7. Low Distortion FM/cJ>M On ............. 3-115
113. Modulation Frequency Correction Off .. 3-115
115. Negative FM Polarity ......... . ... 3-115
116. DC FM Correction Off ............... 3-116
117. DC FM Update Mode On .... . .. 3-116
118. AC-Coupled DC FM On .. . .. 3-116
119. Disable Settling. . . . . . . . .. ..... . .. 3-116
248. Calibrate the Modulation Frequency
Bands Again .............. . . . . . . 3-116
MODULATION, cJ>M .......................... 3-119
cJ>M .......................................... 3-119
Table 3-22. cJ>M Operating Characteristics .... 3-119
Figure 3-15. cJ>M Deviation Limitations for each
RF Frequency Band ...................... 3-119
INT .. .......................... " ............
3-120
How to Set cJ>M with the Internal Source
(Using the Modulation Oscillator) .......... 3-120
EXT AC, EXT DC .............................
3-121
How to Set cJ>M with an External Source ...... 3-121
HP-IB Codes. . . . . . . . . . . . . . . .. . ............ 3-123
Comments ................................. 3-123
Related Special Functions .................... 3-124
7. Low Distortion FM/cJ>M On ............. 3-124
113. Modulation Frequency Correction Off .. 3-124
114. Negative cJ>M Polarity ............ . .. 3-124
119. Disable Settling. . .. . ................ 3-125
248. Calibrate the Modulation Frequency
Bands Again .......................... 3-125
MODULATION, PULSE ....................... 3-127
PULSE ....................................... 3-127
Table 3-23. Pulse Modulation Operating
Characteristics ........................... 3-127
INT ............................... 3-127
How to Set Pulse Modulation with the Internal
Source .................................. 3-127
EXT AC, EXT DC . . .......................... 3-128
How to Set Pulse Modulation with an External
Source ................ . ............. 3-128
HP-IB Codes. . . . . . .. ........... ... 3-129
Comments ............................... 3-129
Related Special Functions .................... 3-130
113. Modulation Frequency Correction Off .. 3-130
248. Calibrate the Modulation Frequency
Bands Again .......................... 3-130
MODULATION OSCILLATOR ................. 3-131
Table 3-24. Modulation Oscillator Operating
Characteristics ........................... 3-131
MOD FREQ .. . . ................... 3-131
How to Set Modulation Frequency ............ 3-131
MOD OUT . ...................................
3-131
How to Set Modulation Output Level ......... 3-131
HP-IB Codes ............................... 3-132
Comments ............... . ... ' ..... 3-132
Related Special Functions. . .............. 3-133
113. Modulation Frequency Correction Off .. 3-133
248. Calibrate the Modulation Frequency
Bands Again .......................... 3 -133
3-95