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E4404B
Agilent Technologies E4404B User Manual
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Chapter 1
GSM Use
Model
Identifying Interfering Signals
GSM Signals
Press
MEASURE
,
More
,
Monitor
Band/Channel
,
Meas S
etup
,
Method
Band
F
igure 1-6
Exampl
e Screen Showing In
terfering GSM Signals
Adjacent interferi
ng GSM signals will have the type of spectral
charact
eristic shown above
in Figur
e 1-6.
15
17
Table of Contents
Default Chapter
4
Safety Information
4
Table of Contents
5
1 GSM Use Model
7
Cellular Communications-Overview
8
The Fault Finding Process
9
Identifying Interfering Signals
12
Examples of Interference Signals
14
2 Preparing to Make GSM Measurements
18
GSM Measurements
19
Basic Key Use
20
Preparing to Make Measurements
21
Initial Settings
21
How to Make a Measurement
21
How to Save Measurement Results
23
3 Making GSM Base Station Measurements
24
Chapter Contents
25
Making the Output RF Spectrum (ORFS) Measurement
26
Purpose
26
Measurement Method
26
Making the Measurement
28
Results
29
Troubleshooting Hints
32
Making the Phase and Frequency Error Measurement
33
Purpose
33
Measurement Method
33
Making the Measurement
33
Results
34
Troubleshooting Hints
34
Making the Power Versus Time Measurement
36
Purpose
36
Measurement Method
36
Making the Measurement
37
Power Time Custom Masks
37
Results
38
Changing the View
38
Changing the Display
39
Troubleshooting Hints
39
Making the Power Steps Measurement
40
Purpose
40
Measurement Method
40
Making the Measurement
40
Results
41
Making the Transmitter Power Measurement
42
Purpose
42
Measurement Method
42
Making the Measurement
43
Results
43
Troubleshooting Hints
44
4 Making GSM Air Interface Measurements
45
Chapter Contents
46
Making the Monitor Band/Channel Measurement
47
Purpose
47
Measurement Method
47
Making the Measurement
47
Results
48
Troubleshooting Hints
49
Making the Out-Of-Band Spurious Measurement
50
Purpose
50
Measurement Method
50
Making the Measurement
50
Results
52
Inspecting Results
53
Troubleshooting Hints
53
Making the Transmitter Receive (Rx) Band Spurious Measurement
54
Purpose
54
Measurement Method
54
Making the Measurement
55
Results
56
Inspecting Results
57
Troubleshooting Hints
57
Making the Transmitter Transmit (Tx) Band Spurious Measurement
58
Purpose
58
Inspecting Results
60
Troubleshooting Hints
60
Making the Transmitter Power Measurement
61
5 Making GSM Cable and Antenna Measurements
62
Chapter Contents
63
Making Cable Fault Location Measurements
64
Purpose
64
Making Return Loss Measurements
68
Purpose
68
Making the Measurement
68
Example
70
Making Loss/Gain Measurements
74
Purpose
74
Making the Measurement
74
Example
75
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Agilent Technologies E4404B Specifications
General
Brand
Agilent Technologies
Model
E4404B
Category
Measuring Instruments
Language
English
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