Anritsu MG3642A Manual de usuario Pagina 93
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SECTION 5 MEASUREMENT
5-1
SECTION 5
MEASUREMENT
5.1 Measurement of Sensitivity
The sensitivity of the receiver means the minimum signal input level required to output the rated signal of the receiver.
The following incidental conditions are required for the signal level, noise level, and signal distortion obtained in the
output side of the receiver:
• AM receiver ............. Indicated by the minimum value of the typically modulated carrier voltage required to output
the rated signal of the specified signal-noise rate (S/N). For example, when S/N = 20 dB, the
minimum value of the carrier input voltage for 60 % modulation required to output the 50-
mW signal is indicated by 10
µ
V.
• FM receiver .............. Indicated by the minimum value of the typically modulated carrier voltage required to obtain
the rated output and specified value (–12 dB in 400 MHz) of the signal to noise and distortion
(SINAD) obtained by adding the signal distortion to the signal-noise rate (S/N). In addition,
this sensitivity is indicated by the minimum value of the carrier voltage required to suppress
the receiver noise output by 20 dB at no-modulation. This is called a noise suppression (NQ)
sensitivity.
This section describes the latter 20 dB NQ sensitivity and explains how to measure the 12 dB SINAD sensitivity.
- ANRITSU CORPORATION 1
- Safety Symbols 2
- For Safety 3
- Equipment Certificate 7
- Anritsu Warranty 7
- Anritsu Corporation Contact 7
- Notes On Export Management 8
- CE Conformity Marking 10
- 4. Authorized representative 11
- C-tick Conformity Marking 12
- Power Line Fuse Protection 13
- SECTION 1 19
- 1.2 Operation Manual 20
- 1.3 Composition of Devices 21
- 1.3.2 Options 22
- Table 1-3. Options 22
- 1.4 Application Parts 23
- 1.5 Specifications 24
- Specifications (continued) 25
- (0 to 50°C) 29
- ■ Option 22 (FSK encoder) 29
- SECTION 1 GENERAL 30
- SECTION 2 31
- PRECAUTION 31
- CAUTION 32
- SECTION 2 PRECAUTION 33
- WARNING CAUTION 34
- WARNING 35
- SECTION 3 37
- PANEL LAYOUT 37
- SECTION 3 PANEL LAYOUT 38
- 3.1.2 Rear panel layout 39
- 3.1.3 Panel layout diagram 40
- Fig. 3-2. Rear Panel 40
- Fig. 3-1. Front Panel 40
- OPERATING INSTRUCTIONS 41
- SECTION 4 41
- 4.1.1 Turning Power On 43
- 4.1.2 Turning Power Off 44
- 4.2 Explanation of Screens 45
- Chk SysGPIB Opt Trig 46
- Main Menu (2/2) 46
- [Preset] key 46
- MG3641A/MG3642A front panel 46
- 4.4 Setting the Frequency 48
- [Rel Freq] key 49
- [Shift] key 49
- 4.4.3 Frequency Offset 50
- [Level] key 51
- [Rel Level] key 52
- 4.5.3 Output Level Offset 53
- 4.5.4 Level Continuous Mode 54
- [RF Off/On] key 55
- Chk SysGPIB Opt Trig 57
- 4.6 Setting the Modulation 58
- [Modulation] key 59
- Mod Ofs MemAFSwp 68
- Main Menu (1/2) 68
- [Memory] 70
- (Memory Set) key 70
- [Memory] key 71
- 4.9.4 Clearing the Memory 73
- 4.10 Sweep Functions 75
- Main Menu (1) 76
- Sweep Auxiliary 79
- Output Connector 79
- MG3641A/MG3642A rear panel 79
- 4.11 Trigger Function 81
- Trigger Program 82
- No Trig Program 82
- Trig Input 83
- 4.12 Miscellaneous Functions 85
- 4.12.1 Setting Display On/Off 85
- Chk SysGPIB Opt Trig 86
- Mod Ofs Mem 90
- Data out of range 90
- Error messages 90
- SECTION 5 93
- MEASUREMENT 93
- SECTION 5 MEASUREMENT 100
- Disturbing wave input level 101
- SECTION 6 107
- 6.1.3 Setup example 108
- 6.1.4 Standard 109
- 6.2 Device Message List 110
- 6.2.4 Writing Commands 111
- Fig. 6-2. Writing Commands 111
- 6.2.5 Compounding Commands 112
- 6.2.6 Parameter 113
- 6.2.7 Unit 113
- 6.2.8 Command Tree 114
- SECTION 6 GPIB 115
- 6.3 Connecting the GPIB Cable 120
- Program message unit 121
- Numeric program data 122
- Logical program data 122
- Character program data 122
- Suffix data (unit) 122
- 6.4.2 Response message format 124
- 6.5 Status Message 126
- 6.5.5 SCPI error messages 131
- 6.6 Initializing Device 133
- 6.7.1 Frequency subsystem 134
- 6.7.2 Output level subsystem 138
- Response Level offset value 140
- 6.7.3 AM subsystem 144
- 6.7.4 FM subsystem 145
- 6.7.5 PM subsystem 147
- 6.7.7 MEMORY subsystem 151
- 6.7.8 Display subsystem 153
- 6.7.9 System subsystem 154
- 6.7.10 Status subsystem 155
- 6.8 IEEE488.2 Common Command 157
- MG3641A/MG3642A 159
- MS2651A spectrum analyzer 159
- 6.10.1 Outline 162
- (3) Output level 163
- SECTION 7 169
- PERFORMANCE TEST 169
- SECTION 7 PERFORMANCE TEST 170
- 7.3 Performance Test 171
- 7.3.1 Output frequency 172
- Power meter 173
- +15 to Ma-8) 174
- (5) Note on test 179
- SECTION 8 181
- CALIBRATION 181
- 8.3 Calibration 182
- SECTION 8 CALIBRATION 184
- SECTION 9 185
- STORAGE AND TRANSPORTATION 185
- 9.3.1 Repacking 186
- 9.3.2 Transportation 186
- APPENDIX A 187
- INITIAL FACTORY SETTINGS 187
- APPENDIX B 191
- FUNCTION-KEY TRANSITION 191
- [Frequency offset value] 193
- 0.00 dB 193
- APPENDIX C 197
- FRONT AND REAR PANEL LAYOUT 197
- APPENDIX D 201
- APPENDIX D INDEX 202
- 3.1.1，4.4.3，4.5.3 203
- APPENDIX E 207
- Copy this at the measurement 212
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