
4. Operating Instruction
4.2 Advanced operation guide
138
Video bandwidth
Video
Bandwidth
>
Resolution
Bandwidth
The video bandwidth value should be large enough to make
sure the video bandwidth filter does not weaken the signal
during the rising time.
The parameters are listed in Table 4.5 for the signal trigger events and the simultaneous arrival of pulses,
namely the SD is 0. If the signal is a non-zero delay, it will be added to the recommended value of gate delay.
Table 4.5 Recommended value for measured parameters of the Gate
Pulse width
Gate delay
Minimum Resolution
Bandwidth
Gate width
20μs
8μs
1MHz
8μs
50μs
40μs
100kHz
8μs
100μs
40μs
100kHz
48μs
500μs
400μs
10kHz
80μs
1ms
600μs
10kHz
200μs
5ms
4ms
1kHz
0.8ms
10ms
6ms
1kHz
2.4ms
50ms
30ms
1kHz
12ms
100ms
50ms
1kHz
24ms
4.2.9.4 Measuring example: to measure the RF pulse signal of FM modulation by the use of gating LO
The example of time gate measurement is a simple pulse signal of frequency modulation, aiming to eliminate
the pulse spectrum to observe the spectrum of FM carrier, which seems to be a continuous signal instead of a
pulse signal. It is possible to reveal the simple modulation behind the pulse spectrum.
Step 1. Generate the FM signal modulated by RF pulse via the signal generator:
There are many ways to generate FM signal modulated by RF pulse. The internal modulation of 1464 series
signal generator is applied to this example, with the parameter shown in Table 4.6.
Table 4.6 Parameters of 1464 series signal generator
Frequency
400 MHz
Amplitude
-10dBm
Modulation
Pulse modulation On and FM modulation On
Pulse period
5ms (or pulse repetition frequency 200Hz)
Pulse width
4ms
Pulse input
Internal auto
FM modulation rate
50kHz
FM frequency offset
1kHz
FMinput
For internal
Waveform
Sine wave
Step 2. Connect the signal generator and Series Signal Analyzer:
As shown in Fig. 4.56, connect the Series Signal Analyzer and signal generator, where the RF output of signal
generator is connected to the RF input of the analyzer, and the monitoring output port of the signal generator
to the input port of external trigger on the front panel of 4051 Series Signal Analyzer.
Содержание 4051 Series
Страница 1: ...4051 Series Signal Spectrum Analyzer User Manual China Electronics Technology Instruments Co Ltd...
Страница 5: ......
Страница 6: ......
Страница 7: ......
Страница 14: ......
Страница 18: ......
Страница 68: ......
Страница 203: ...5 Menu 5 1 Menu structure 189 5 1 2 10 Measurement Control Meas Ctrl Restart Pause Fig 5 2 10 Measurement Control Menu...
Страница 214: ...5 Menu 5 1 Menu structure 200 5 1 3 3 Span X Axis Span Span 3 000000 GHz Full Span Last Span Fig 5 3 3 Span Menu...
Страница 225: ...5 Menu 5 1 Menu structure 211 5 1 3 13 Maker Mkr Fig 5 3 13 Marker Menu...
Страница 226: ...5 Menu 5 1 Menu structure 212 5 1 3 14 Marker Function Marker Func Fig 5 3 14 Marker Function Menu...
Страница 230: ...5 Menu 5 1 Menu structure 216 5 1 4 3 Span X Axis Span Span 3 000000 MHz Full Span Last Span Fig 5 4 3 Span Menu...
Страница 241: ...5 Menu 5 1 Menu structure 227 5 1 4 13 Maker Mkr Fig 5 4 13 Marker Menu...
Страница 242: ...5 Menu 5 1 Menu structure 228 5 1 4 14 Marker Function Marker Func Fig 5 4 14 Marker Function Menu...
Страница 246: ...5 Menu 5 1 Menu structure 232 5 1 5 3 Span X Axis Span Span 8 000000 MHz Full Span Last Span Fig 5 5 3 Span Menu...
Страница 259: ...5 Menu 5 1 Menu structure 245 5 1 5 13 Maker Mkr Fig 5 5 13 Marker Menu...
Страница 260: ...5 Menu 5 1 Menu structure 246 5 1 5 14 Marker Function Marker Func Fig 5 5 14 Marker Function Menu...
Страница 264: ...5 Menu 5 1 Menu structure 250 5 1 6 3 Span X Scale Span X Scale Scale Div 2 00dB Fig 5 6 3 Span Menu...
Страница 265: ...5 Menu 5 1 Menu structure 251 5 1 6 4 Bandwidth BW Measure BW 1 000000MHz Fig 5 6 4 Bandwidth Menu...
Страница 266: ...5 Menu 5 1 Menu structure 252 5 1 6 5 Sweep Sweep Fig 5 6 5 Sweep Menu...
Страница 272: ...5 Menu 5 1 Menu structure 258 5 1 6 10 Auto Setting Auto Set Couple All Fig 5 6 10 Auto Setting Menu...
Страница 275: ...5 Menu 5 1 Menu structure 261 5 1 6 13 Maker Mkr Fig 5 6 13 Marker Menu...
Страница 276: ...5 Menu 5 1 Menu structure 262 5 1 6 14 Marker Function Marker Func Fig 5 6 14 Marker Function Menu...
Страница 277: ...5 Menu 5 1 Menu structure 263 5 1 6 15 Peak Search Peak Search Fig 5 6 15 Peak Search Menu...
Страница 280: ...5 Menu 5 1 Menu structure 266 5 1 7 3 Span X Scale Span Fig 5 7 3 Span Menu...
Страница 282: ...5 Menu 5 1 Menu structure 268 5 1 7 5 Sweep Sweep Sweep Time 400 00 ms Man Sweep Points 1001 Auto Fig 5 7 5 Sweep Menu...
Страница 291: ...5 Menu 5 1 Menu structure 277 5 1 7 13 Maker Mkr Fig 5 7 13 Marker Menu...
Страница 292: ...5 Menu 5 1 Menu structure 278 5 1 7 14 Marker Function Marker Func Fig 5 7 14 Marker Function Menu...
Страница 296: ...5 Menu 5 1 Menu structure 282 5 1 8 3 Span X Scale Span Fig 5 8 3 Span Menu...
Страница 297: ...5 Menu 5 1 Menu structure 283 5 1 8 4 Bandwidth BW Res BW 30 00 kHz Man Auto Fig 5 8 4 Bandwidth Menu...
Страница 298: ...5 Menu 5 1 Menu structure 284 5 1 8 5 Sweep Sweep Sweep Time 400 00 ms Man Auto Fig 5 8 5 Sweep Menu...
Страница 301: ...5 Menu 5 1 Menu structure 287 5 1 8 7 Trace Trace Select Trace Trace 1 Clear Write Trace Average Fig 5 8 7 Trace Menu...
Страница 306: ...5 Menu 5 1 Menu structure 292 5 1 8 12 Marker Marker Fig 5 8 12 Marker Menu...
Страница 307: ...5 Menu 5 1 Menu structure 293 5 1 8 13 Maker Mkr Fig 5 8 13 Marker Menu...
Страница 308: ...5 Menu 5 1 Menu structure 294 5 1 8 14 Marker Function Marker Func Fig 5 8 14 Marker Function Menu...
Страница 309: ...5 Menu 5 1 Menu structure 295 5 1 8 15 Peak Search Peak Search Fig 5 8 15 Peak Search Menu...
Страница 312: ...5 Menu 5 1 Menu structure 298 5 1 9 3 Span X Scale Span Span 4 000000 GHz Fig 5 9 3 Span Menu...
Страница 314: ...5 Menu 5 1 Menu structure 300 5 1 9 5 Sweep Sweep Sweep Time 400 00 ms Man Sweep Points 1001 Auto Fig 5 9 5 Sweep Menu...
Страница 323: ...5 Menu 5 1 Menu structure 309 5 1 9 13 Maker Mkr Fig 5 9 13 Marker Menu...
Страница 324: ...5 Menu 5 1 Menu structure 310 5 1 9 14 Marker Function Marker Func Fig 5 9 14 Marker Function Menu...
Страница 326: ...5 Menu 5 1 Menu structure 312 5 1 10 Spurious emission 5 1 10 1 Frequency Frequency Fig 5 10 1 Frequency Menu...
Страница 328: ...5 Menu 5 1 Menu structure 314 5 1 10 3 Span X Scale Span Fig 5 10 3 Span Menu...
Страница 329: ...5 Menu 5 1 Menu structure 315 5 1 10 4 Bandwidth BW Fig 5 10 4 Bandwidth Menu...
Страница 333: ...5 Menu 5 1 Menu structure 319 5 1 10 7 Trace Trace Fig 5 10 7 Trace Menu...
Страница 337: ...5 Menu 5 1 Menu structure 323 5 1 10 10 Auto Setting Auto Set Couple All Fig 5 10 10 Auto Setting Menu...
Страница 340: ...5 Menu 5 1 Menu structure 326 5 1 10 13 Maker Mkr Fig 5 10 13 Marker Menu...
Страница 341: ...5 Menu 5 1 Menu structure 327 5 1 10 14 Marker Function Marker Func Fig 5 10 14 Marker Function Menu...
Страница 345: ...5 Menu 5 1 Menu structure 331 5 1 11 3 Span X Scale Span Fig 5 11 3 Span Menu...
Страница 354: ...5 Menu 5 1 Menu structure 340 5 1 11 10 Auto Setting Auto Set Couple All Fig 5 11 10 Auto Setting Menu...
Страница 357: ...5 Menu 5 1 Menu structure 343 5 1 11 13 Maker Mkr Fig 5 11 13 Marker Menu...
Страница 358: ...5 Menu 5 1 Menu structure 344 5 1 11 14 Marker Function Marker Func Fig 5 11 14 Marker Function Menu...
Страница 359: ...5 Menu 5 1 Menu structure 345 5 1 11 15 Peak Search Peak Search Fig 5 11 15 Peak Search Menu...
Страница 656: ......