Agilent Technologies U2000 Series Wartungshandbuch PDF herunterladen (Seite 74)

3 Specifications and Characteristics

58 U2000 Series Operating and Service Guide

Example:

U2000A power sensor, measured power = –4 dBm, gate length = 1.36 ms,

number of averages = 256.

The measured power is –4 dBm, thus the corresponding noise per sample

is 85 µW (refer to the noise per sample table).

Use Equation 2 for measurement noise calculation:

The calculated measurement noise (1.123 µW) is lower than the

measurement noise specification (21 µW). In this case, the measurement

noise would be 21 µW.

85µW

256

-------------

1.36 ms()0.68µs()⁄

-------------------------------------------------

⎝⎠

⎛⎞

× 1.123µW=

1 2 ... 69 70 71 72 73 74 75 76 77 78 79 ... 98 99

Agilent U2000 Series 1
USB Power Sensors 1
Certification 3
Limitation of Warranty 3
Exclusive Remedies 3
Safety Summary 4
Safety Notices 4
Safety Symbols 5
Regulatory Markings 6
20002/96/EC 7
General Safety Information 8
Environmental Conditions 9
Contents 11
2 Operating Information 12
4 Service 13
5 Appendix 13
List of Figures 14
List of Tables 15
Getting Started 17
Introduction 18
Power Sensor Overview 19
LED Indicator Guide 20
Getting Started 1 21
Principles of Operation 22
1Getting Started 24
Milimeter-Wave Applications 26
Initial Inspection 27
System Requirements 28
Operating Information 37
Measurement Mode 38
Operating Information 2 39
Measurement Gate 40
2 Operating Information 42
Setting the Range 43
Measurement Considerations 44
Speed and Averaging 45
Internal and External Zeroing 46
Step Detection 49
U2000/1/2A –60 dBm to +20 dBm 50
U2000/1/2H 50
50 dBm to +30 dBm 50
U2000/1B 50
30 dBm to +44 dBm 50
Agilent Technologies 51
Specification definitions 53
Specifications 54
Maximum SWR (25 °C ±10 °C) 55
Maximum SWR (0 °C to 55 °C) 61
Maximum Power 63
Power Accuracy 64
25 °C for U2000/1/2/4A models 65
25 °C for U2000/1B models 65
for U2000/1/2H models 66
Switching Point 67
Examples 68
U2000/1/2/4A Power Sensors 68
U2000/1/2H Power Sensors 68
U2000/1B Power Sensors 68
Average only Mode 69
Normal Mode 72
Settling time 75
Cal Factor Uncertainty 78
General Characteristics 83
General Information 86
Performance Test 87
Replaceable Parts 90
Service 92
Disassembly Procedure 93
Reassembly Procedure 94
Reassembly instructions: 94
U2000B and U2001B 95
Appendix 97

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