HP 83236B Bedienungsanleitung Seite 37
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Chapter 2, Making Measurements
Transmit Spectrum
Steps: Go to
Spectrum Analyzer
@ Present Chan
1 Connect the equipment as shown in figure 16.
2 In the main menu, enter the Base Station Channel number for the transmitter
being tested.
3 Turn on your base station transmitter.
4 Scroll to and select Go to Spectrum Analyzer @ Present Chan. The
spectrum analyzer display will appear and the center frequency will be set to match the
channel number entered in step 2 (see figure 17).
5 Use the Controls area (set to Main) in the lower part of the spectrum analyzer
screen to make changes to the reference level and span settings as desired. Set the
Controls field to Marker to use marker functions.
6 To return to the main menu press SHIFT, then k1, then ENTER.
Figure 17
Note that the Marker
Frequency readout is
corrected to read the
actual PCS frequency.
- HP 83236B PCS Interface 1
- RESTRICTED 2
- Conventions 4
- Used in this 4
- Contents 10
- Getting Started 11
- Introduction 12
- Required 13
- Equipment 13
- Step 1: Make Connections 14
- Chapter 1, Getting Started 15
- CDMA/PCS BS 17
- Test Software 17
- Navigation of the 17
- . . . . . . . 16 19
- Step 4: Perform CDMA Tests 21
- Making Measurements 23
- Overview 25
- Average Power 26
- In this example, loss 27
- 1 dB of cable loss 27
- Modulation Quality (Rho) 28
- in the main menu 28
- Code Domain Power 30
- Code Domain Timing 32
- Code Domain Phase 34
- Transmit Spectrum 36
- Steps: Go to 37
- Spectrum Analyzer 37
- @ Present Chan 37
- & Enter Freq 38
- Ref level, Span, and Marker 39
- Receiver Sensitivity 40
- , typically to 0 41
- Search for PN Offset 44
- Figure 23 44
- Check Even-Second Clock 46
- Operating Overview 49
- Selecting a PCS Band 51
- −80 MHz 52
- −90 MHz 52
- ❒ Base Station Reference Freq 54
- Using Autostart 57
- Chapter 3, Operating Overview 61
- Troubleshooting 63
- Memory Overflow 65
- Test System 66
- Configuration 66
- Errors at Runtime 66
- Menu Screens in 68
- Match the Screens 68
- Offset" on page 44 69
- Chapter 4, Troubleshooting 70
- Frame Error Rate 71
- (Receiver 71
- Measurements) 71
- not set to zero 72
- Code Domain 74
- Measurements 74
- Glossary 77
- of 64 PN chips of a pilot 80
- by the 81
- Pilot PN Sequence A pilot 82
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