Keysight Technologies C Series - Page 74

Keysight Technologies C Series

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74 Keysight N9915-90015 User’s Guide

DTF (Distance to Fault) Measurements

DTF Measurement Settings

Re-reflections are measured at the FieldFox as mirror images of the original

faults. The largest fault is the open end of the cable. To avoid confusion, set

the Stop distance shortly after that fault.

Table of Contents

Title1
Notices2
Where to Find the Latest Information3
Is your product software up-to-date?3
A.12.7x Firmware – Release C Series FieldFox4
Contacting Keysight5
Content7
1 Overview25
- Models and Options25
- Accessories26
  - Optional Accessories26
- FieldFox Manuals, Software, and Supplemental Help27
  - Conventions that are used in the Manual27
  - Safety Notes28
2 Preparing for Initial Use of Your New FieldFox29
- Check the Shipment29
- Meeting Power Requirements for the AC/DC Adapter29
- Install the Lithium-Ion Battery30
  - Battery Usage30
- FieldFox ON/OFF Settings31
  - Power Button LED Status32
- FieldFox High Temperature Protection32
- Avoid Overpowering the FieldFox37
- Take the FieldFox Tour38
- How to Enter Numeric Values46
  - Multiplier Abbreviations46
- Connector Care47
3 CAT (Cable and Antenna Test) Mode49
- CAT Mode Settings51
- Return Loss Measurements59
  - How to Measure Return Loss59
- 1-Port Cable Loss Measurements60
  - How to make a 1-port Cable Loss Measurement60
- 2-Port Insertion Loss Measurements61
4 DTF (Distance to Fault) Measurements63
- How to make DTF Measurements64
- DTF Measurement Settings66
5 TDR (Time Domain Reflectometry) - Option 21575
- TDR Measurement Settings78
6 NA (Network Analyzer) Mode89
- NA Mode Settings91
7 Time Domain – Option 010113
- Overview115
- Time Domain (Transform) Settings116
- Trace Settings121
  - Transform Enable121
  - Gate Enable121
- Gating122
8 Calibration for NA, CAT, and VVM ModesFUTURE125
- Verifying Calibration and Jumper Cable Integrity126
- Verifying Calibration and Jumper Cable Integrity144
  - Verify a Calibration144
  - Test the Jumper Cable145
- Calibration Method Summary146
9 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)FUTURE147
- SA Mode Settings151
- Channel Measurements220
- How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers))230
  - EMF Features231
  - EMF Setup Procedure233
- Spectrum Emission Mask (SEM) — (SA Mode Only)243
  - How to select Spectrum Emission Mask (SEM) Measurement245
- IQ Analysis (SA Mode Only)250
- Effective Isotropic Radiated Power (EIRP) – (SA Mode Only)253
  - How to Select Effective Isotropic Radiated Power (EIRP)253
  - How to Setup EIRP (Effective Isotropic Radiated Power)253
10 RTSA (Real-time Spectrum Analyzer) Mode—Option 350255
- RTSA Mode Settings259
- Spectrogram Display281
  - Spectrogram Display (RTSA Option)281
  - Common Settings for Spectrogram282
- Record/Playback (RTSA Option)283
11 IQ Analyzer (IQA) – Option 351293
- About I/Q Analyzer (IQA) Measurements298
  - Setting the IF Path298
- I/Q Analyzer (IQA) Mode Settings299
- Using Markers (IQA)314
- Alignments319
- Trace Display States (IQA Mode)319
  - How to display the Trace States319
- Other Features Available321
12 Electromagnetic Interference (EMI) Measurements – Option 361323
- Using EMI Measurements (Option 361)327
- EMI Measurements Mode Settings328
- About Electromagnetic Interference (EMI) Measurements343
  - EMI Measurement Features (Option 361)343
- How to Set Up Electromagnetic Interference (EMI) Mode Settings345
  - EMI Measurement Mode Setup Procedure345
- Glossary (EMI)346
13 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378347
- Using OTA (Options 370 – LTE FDD, 372 – TDD, 377 – 5G TF, and Option 378 – 5G NR / 5G NR Conducted)350
- About Over–the–Air (OTA) Measurements352
- How to Set Up Over–the–Air (OTA) Mode Settings365
- How to Set Up EMF Mode Settings (Requires EMF (Option 358) and 5G NR (Option 378))400
  - EMF Features400
  - EMF Setup Procedure403
- How to Use Data Logging (OTA Options 370, 372, 377, and 378)407
- Other Features Available411
- About the Auto-Range Feature412
- Troubleshooting416
- Glossary (OTA)417
14 5G Rapid Prototype Phased Array Antenna – Option 360421
- Using the Phased Array Antenna (Option 360)423
- About Phased Array Antenna Measurements424
  - Phased Array Antenna Features (Option 360)424
- How to Set Up Phased Array Antenna Settings433
- How to Use Data Logging/Playback (Option 360)455
- Using Mapping459
- Other Features Available459
- Troubleshooting460
- Glossary (Option 360)461
15 USB Antennas – (Full Capability Requires EMF Option 358, and either SA mode (Option 233 Mixed Analyzers) or OTA—5G NR / 5G NR EVM Conducted Option 378)463
- Using USB Antennas (Also, Known as EMF Antennas)466
- About USB Antenna (Also, Known as EMF Antenna) Measurements467
  - USB Antenna Features467
- How to Set Up a USB Antenna (Also, Known as EMF Antenna)469
  - USB Antenna Setup Procedure469
- Other Features Available473
- Troubleshooting474
16 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307))475
- How to Install Node.js and Running the FieldFox Mapping Software480
- Downloading and Using the FieldFox Map Support Tool482
- Importing a .zip File to the FieldFox487
- How to Set Up Mapping Settings490
- How to Use Data Logging (Option 352)513
- Troubleshooting520
- Glossary (Option 360)526
17 Direction Finding (Option 390 Time Difference of Arrival (TDoA)) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)527
- Time Difference of Arrival (TDOA) – (Requires Option 390)529
- Troubleshooting530
  - GPS lock Errors530
18 Remote Server Mode (Requires SA Hardware/SA Option 233)531
- In this Chapter:532
- Connecting Using Remote Server533
  - Changing Frequency Converter Head Settings534
- 89600 VSA Software Overview (Requires N991xC/3xC and SA Option 233)535
19 Interference Analyzer (SA Mode) – Option 236537
- Spectrogram and Waterfall Displays538
- Record/Playback (SA Option)544
20 Reflection Mode (SA Models) - Option 320557
- Reflection Mode Settings560
21 Built-in Power Meter Mode – Option 310563
- Built-in Power Meter Settings565
22 Power Meter (USB/LAN) Mode - Option 302567
- USB and LAN Power Meter Settings569
- USB and LAN Power Meter Settings572
- Troubleshooting580
  - LAN Sensors580
23 Frequency Offset Using Power Sensor (FOPS) – Option 208583
- Overview585
- FOPS Settings587
24 Pulse Measurements Mode – Option 330593
- Supported Power Sensors593
- Pulse Measurement Settings599
25 VVM (Vector Voltmeter) Mode - Option 308611
- Overview613
- VVM Mode Settings614
- 1-Port Cable Trimming Measurements619
  - How to make a 1-Port Cable Trimming Measurement619
- 2-Port Transmission Measurements621
  - How to make a 2-Port Transmission Measurement621
- A/B and B/A Measurements622
26 ERTA (Extended Range Transmission Analysis) Mode - Option 209623
- Overview624
- Requirements and Limitations625
  - Requirements625
  - Limitations625
- Start Connection Wizard626
  - On the Receiver unit:626
- Configure Measurement Settings630
27 AM/FM Metrics (SA Only and Option 355)633
- Using AM/FM Metrics633
  - Overview of Measurement Types633
  - s636
- SINAD and THD Calculations640
- Interpreting AM/FM Metrics Error Messages643
  - Test Tone Not Found643
28 Channel Scanner (Option 312)647
- Using Channel Scanner648
- How to Set Up Channel Scanner649
29 Noise Figure Mode (Option 356)673
- Using Noise Figure676
- How to Define a Noise Figure Measurement682
- Calibration Wizard720
  - When to Calibrate720
- How to use Auto-Integration726
  - About Auto-Integration726
  - Auto-Integration Procedure727
- Other Features Available732
- Troubleshooting733
30 Data Analysis FeaturesDELETE_IF735
- All about Markers736
- All about Limit Lines751
- All about Trace Math763
- All about Scale Settings765
  - How to Use Scale Settings765
  - Averaging (CAT, NA, Power Meter, Channel Scanner, and Pulse Measurement Modes Only)766
31 System SettingsFUTURE769
- Run/Hold770
  - How to perform a single sweep while in Hold771
- Preset771
  - How to Preset the FieldFox771
- User Preset772
  - How to set User Preset772
  - How to recall User Preset772
- Audio (Volume) Control773
  - How to set the FieldFox Volume Control773
- Display (Settings)773
- Utilities776
  - How to view and change Utilities Settings776
- Preferences784
- Discrete Colors Softkey Menu801
  - Using the Discrete Colors Softkey Menu801
- System Configuration801
- Service Diagnostics815
- Understanding the Fan Controls818
32 Using the Mini-USB Port to send SCPI Commands and Queries821
- Mini-USB Connection to PC with IO Libraries821
33 File ManagementFUTURE823
- Saving and Recalling Files824
- Press Printing840
  - How to print the current screen or a saved file840
34 Working with the Lithium-Ion Battery841
- Viewing the Battery Charge Status841
  - Service Diagnostics—Battery Screen842
  - Built-In Battery Gauge842
- Charging the Battery843
  - Internal Charging with the AC/DC Adapter843
  - Using the External Battery Charger (N9910X–872)845
- Reconditioning Battery846
- Battery Care846
- Maximizing Battery Life846
- Lithium-Ion Battery Disposal847
35 Safety Considerations849
- For the FieldFox850
- For the AC/DC Adapter852
- For the External Battery Charger (N9910X-872)853
- For the Battery854
  - High Capacity Lithium Battery (N9910X-876)854
  - Standard Capacity Battery (N9910X-870)856
- Battery Protective Functions858
  - Battery Protective Functions (N9910X-876)858
  - Battery Protective Functions (N9910X-870)860
- Batteries: Safe Handling and Disposal861
- Battery Transportation861
- Environmental Requirements862
- Electrical Requirements862
- Electrostatic Discharge (ESD) Precautions862
- FieldFox Markings862
- Battery Markings865
- Packaging Markings868
- AC/DC Adapter Markings868
- Certification and Compliance Statements871
A: Connector Care Review873
- Connector Care Table874
B: Specifications/Data Sheet875
C: Instrument Calibration877
- How Often Should Calibrate My Instrument?877
- How do I Get an Instrument Calibration?877
- What Are My Choices of Instrument Calibration?878
D: Korean Battery Safety Translation879
E: Russian Battery Safety Translation889
F: Keysight Software End-User Licensing Agreement (EULA)901
Index905

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