HP E6380-90019 Bedienungsanleitung Seite 61
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Chapter 3 61
Overview of the Test Set’s Built-In Tools
Using RF Tools Program
Estimating Antenna Return Loss
If you are measuring the return loss of an antenna connected to the end
of a known good feed line, you can determine the approximate return
loss of the antenna by subtracting twice the line loss. For example, if
you measure a return loss of 24 dB and the line is known to have 2 dB
loss, the estimated return loss of the antenna is 20 dB (since there is a
total of 4 dB of loss as the signal is sent to the SWR bridge and reflected
back to the Test Set). This estimate is in error if the coaxial line and
connectors do not have a return loss somewhat greater than 24 dB.
Main Menu
- Test Set 1
- Main Menu 10
- Product Information 11
- 1 Getting Started 23
- Before Connecting a Radio 24
- Properly? 31
- 2Operating Overview 33
- Displaying CDMA Measurements 34
- Frequencies 40
- Averaging Measurements 46
- Using USER Keys 51
- Replacing Batteries 53
- 3 Overview of the Test Set’s 55
- Built-In Tools 55
- Using RF Tools Program 56
- Using the Spectrum Analyzer 68
- Using IB_UTIL Programs 74
- Securing a Test Procedure 75
- Clearing RAM 76
- Using the DEMO Program 78
- CDMA Measurements 82
- RF Channel 109
- Analog Measurements 116
- AF Freq Measurement 117
- DC Level Measurement 117
- FM Deviation Measurement 118
- Frequency Error Measurement 119
- Frequency Measurement 119
- TX Power Measurement 120
- SINAD Measurement 122
- SNR Measurement 122
- AF Anl In 123
- AF Cnt Gate 123
- AFGen1 Freq 124
- AFGen1 To 124
- AFGen2 Freq 125
- AFGen2 To 125
- Amplitude 126
- Atten Hold 126
- Audio In Lo 127
- Audio Out 127
- Auto/Norm 127
- Auto Zero 128
- Center Freq 128
- Controls 128
- Cont/Single 128
- De-Emp Gain 129
- De-Emphasis 129
- Detector 130
- Ext Load R 131
- Filter 1 131
- Filter 2 132
- FM Coupling 133
- Freq (marker) 133
- Gain Cntl 134
- IF Filter 135
- Input Atten 135
- Input Gain 136
- Input Port 136
- Internal 137
- Level (div) 137
- Lvl (marker) 138
- Marker To Peak+ 139
- Marker To Peak 139
- Marker To (spectrum analyzer) 139
- Mod In To 140
- No Pk/Avg 140
- Normalize 141
- Notch Freq 141
- Notch Gain 142
- Offset Freq 142
- Output Port 143
- Pk Det To 143
- Port/Sweep 144
- Position 145
- Ref Level 146
- RF Cnt Gate 147
- RF Gen Freq 148
- RF In/Ant 148
- Scope To 149
- Sensitivity (RF analyzer) 150
- Settling 151
- Speaker ALC 152
- Speaker Vol 152
- Time/div 154
- Track/Fixed 154
- Trig-Delay 155
- Tune Freq 156
- TX Pwr Meas 156
- TX Pwr Zero 157
- Vert/div 158
- Vert Offset 158
- Control Fields 159
- Configuring the Instrument 160
- 7 Connectors 183
- Connectors 184
- Modifications 196
- Accessories 197
- 9 Error Messages 203
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