HP 8591C Manual de usuario Pagina 287
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Spectrum Analyzer Mode Key Descriptions
Spectrum Analyzer Mode Functions
The total power of the channel is displayed. The adjacent
channel power ratios of both channels are also displayed and
the larger number is marked with a A. (Vertical lines on
the display indicate the six edges of the upper, lower, and
reference channels being measured.)
The measurement stops and the analyzer is returned to its
prior state when other measurement functions are activated.
The center frequency must be set to the intended carrier
frequency and the reference level set to optimize the
displayed signal. The channel bandwidth and channel
spacing must be entered by the user. If
PARAM
AUTO is
selected (so AUTO is underlined), other analyzer settings
will then be coupled and set automatically. The adjacent
channel power measurement is an rms measurement. This
means that the measurement of the total channel power and
the adjacent channel power ratios are accurately reported,
whether the transmitted signal contains tones, noise, or
both. IF
PARAM
AUTO is selected the parameters of the
instrument state are set for a valid measurement.
When using
PARAM
MAN, the following conditions must be
maintained to make a valid rms measurement:
l Video bandwidth is at least 10 times the resolution
bandwidth.
l Detector mode is sample (SMP). (You can use
DETECTOR SMP PK to select the detector mode.)
l Resolution bandwidth is less than or equal to 100
kHz.
l Video averaging is OFF.
l Neither MAX HOLD nor MIN HOLD trace mode is selected.
Front-Panel Key Access
[MEAS/USER]
6-11
- User’s Guide 1
- Assistance 6
- Safety Notes 7
- General Safety Considerations 8
- Cable TV Analyzer 9
- Documentation Description 9
- Contents 12
- Preparing For Use 22
- More 2 of 4, and CAL TRK 25
- Inspection 26
- Requirements 28
- 81x-5182 33
- 3. Press 34
- cable shipped with the cable 37
- TV analyzer 37
- Printing 38
- Plotting 38
- Press @%FiQ, More 39
- Printing or Plotting 43
- Equipment 46
- Electrostatic 60
- Discharge 60
- Getting Started 62
- Front-Panel 64
- Features 64
- Rear-Panel 68
- Controls 71
- Fine-Focus Control 73
- Annotation 74
- PEAK SEARCH] or press 81
- Procedure to Change the 90
- Information 92
- Overwritten 105
- Press LOAD FILE 117
- (PRESET) 119
- Card -+ Trace AMP COR 124
- Limit-Line 125
- Functions 125
- FREQUENCY], 300 126
- Using limit-line Functions 128
- Selecting the Type of 132
- Limit-Line Table 132
- Selecting the Limit-Line 133
- Table Format 133
- Using Limit-Line Functions 137
- Selecting the Segment 138
- Limit4ine 140
- Functions 140
- FREQUENCY] 300 MHz 141
- I IHZ SWP 30.0 145
- FREQUENCY), START 145
- Amplitude-Correction 153
- 14:85:24 154
- AUG 18 154
- External 157
- Keyboard 157
- [BACKSPACE) 158
- External Keyboard 159
- Installation 160
- To Enter a Screen Title 160
- Making Basic 162
- Measurements Using 162
- Spectrum Analyzer Mode 162
- CFREQUENCY) 165
- FREQUENCY) 167
- 300 (MHz), then 167
- PEAK SEARCH_) 168
- Resolution Bandwidth 169
- FREQUENCY] 300 (MHz) 170
- SEARCH].) 170
- FREQUENCY], 300 (MHz) 172
- PEAK SEARCH) 174
- (MHz) 175
- FREQUENCY], 100 177
- FREQUENCY), START FREQ , 88 184
- AUTO COUPLE) and 185
- FREQUENCY), 400 192
- I I I I I I 194
- Third-Order 195
- Intermodulation 195
- Distortion 195
- SEARCH] 196
- Making Measurements 201
- Using Spectrum Analyzer 201
- (MEAS~USER) 203
- Figure 5-1. FFT Annotation 204
- AMPLITUDE] and 206
- FREQUENCY) and adjust the 207
- Analyzer 208
- Stimulus-Response 212
- Measurements 212
- SPECTRUM ANALYZER 215
- ATN AUTO 216
- Refer to 216
- Figure 5-9. Normalized Trace 221
- SEARCH) to 223
- Time-Gate Utility Display 228
- Gate Delay 239
- Signal Delay 239
- ENTER 50.08 MHz 250
- (FFEZT] 256
- N dB Bandwidth Measurement 260
- N dB Bandwidth Measurement 261
- Adjacent Channel Power 271
- Adjacent Channel Power Graph 272
- Measurement 274
- Channel Power 275
- Key Descriptions 277
- Diagnostic 280
- Service Diagnostic 281
- A. (Vertical lines on the 285
- A. (Vertical lines on 287
- Front-Panel Key Access 291
- (jD’spLAy-1 291
- AUTO COUPLE] 293
- AUTO COUPLE) 293
- CATALOG 0% 308
- 981861 AT 309
- COUPLE) or 311
- AMPLITUDE] 326
- Spectrum Analyzer Mode Key 328
- Oescriptions 328
- PEAK SEARCH] 333
- CAT ITEM 334
- Mode Functions 337
- this function is disabled 343
- FREQUENCY] 351
- Coupling, UPDATE TIMEFREQ 363
- SEARCH] 365
- FREQUENCY) then 366
- PEAK SEARCH) and 367
- PEAK SEARCH), MARKER A , and 367
- ZOOM the first 384
- Descrrptions 403
- [MEAS/USER) 409
- (MKRFCTN) 411
- AUTO COUPLE) or 416
- TRACKING 424
- [MEAS~USER) 426
- Key Menus 433
- If You Have a Problem 450
- More 1 of 4 455
- FREQUENCY), -37 458
- Messages 463
- AUTO COUPLE), AUTO ALL (U) 473
- Options and Accessories 478
- Accessories 484
- Glossary 488
- FM span, 6-74 525
- Index- 10 526
- Index- 11 527
- Index- 12 528
- Index- 13 529
- Index- 14 530
- Index- 15 531
- Index- 16 532
- Index- 17 533
- Index- 18 534
- Index- 19 535
- Index-20 536
- Index-22 538
- Index-23 539
- Index-24 540
- Index-25 541
- Index-26 542
- Index-27 543
- Index-28 544
- Index-29 545
- Index-30 546
- Index-32 548
- Index-33 549
- Index-34 550
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