HP 8642A - Page 190

Operation Model 8642A/B
Special Functions (cont'd)
Table 3-28. Summary of Special Functions; Function to Code
Function
RF Frequency
Amplitude
AM
FM
$M
Modulation
Oscillator
Sweep
Miscellaneous
Service
Special Function Description
Prefer Heterodyne Band
Decrement Frequency by 0.1 Hz
Increment Frequency by 0.1 Hz
Phase Adjust by Knob or Step Keys
Phase Decrement 1°
Phase Increment 1°
Phase Decrement 5°
Phase Increment 5°
ALC Off
Attenuator Range Hold
Disable Settling
Prefer Heterodyne Band
External Low Rate FM
Internal + External Low Rate FM
FM Pre-Emphasis
Low Distortion FM/*M
Negative FM Polarity
DC FM Correction Off
DC FM Update Mode
AC-Coupled DC FM
Prefer Heterodyne Band
Disable Settling
Low Distortion FM/$M
Negative <J>M Polarity
Prefer Heterodyne Band
Disable Settling
Modulation Frequency Correction Off
Calibrate Modulation Frequency Bands Again
Sweep Up and Down
Linear Amplitude Sweep
Phase Continuous Frequency Sweep
Disable Settling
Special Functions 4-9 Off
All Special Functions < 200 Off
Special Function Verification Off
Display Firmware Information
Disable Display
Turn Off LCD Lighting
Clear Recall Registers
Service Mode (see Service Manual)
Code
Select
8
240
241
250
242
243
244
245
4
9
119
8
5
112
6
7
115
116
117
118
8
119
7
114
8
119
113
248
121
122
123
119
111
249
135
134
251
3
Off
208
204
209
219
208
205
212
206
207
215
216
217
218
208
219
207
214
208
219
213
221
222
223
219
0
100
211
235
234
3-170