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Keysight Technologies E8740A-060, Руководство для стартапов

Keysight Technologies E8740A-060 - Это многофункциональный анализатор спектра с частотным охватом от 10Гц до 6ГГц. Чтобы начать использование этого продукта, загрузите бесплатный "Стартовый Руководство" с {веб-сайта}. Изучайте функционал и настройки без труда благодаря этому исчерпывающему руководству.

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Keysight E8740A-060 Start-up Guide

11

Figure 1

Average noise density marker noise at 79 GHz

Step

Action

Notes

Содержание E8740A-060

Страница 1: ...Keysight E8740A 060 Performance Radar Signal Analysis Solution Start up Guide Performance Radar Signal Analysis Solution with N9041B DSOS804 and VSA89600 software...

Страница 2: ...customarily provided to the public to use modify reproduce release per form display or disclose commercial computer software or commercial com puter software documentation No additional government re...

Страница 3: ...Control Instrument product The affixed product label is as shown below Do not dispose in domestic household waste To return this unwanted instrument contact your nearest Keysight Service Center or vis...

Страница 4: ...4 Keysight E8740A 060 Start up Guide THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK...

Страница 5: ...kList 8 Requirements 8 Full Span Measurements with the N9041B 9 Viewing the noise floor of the N9041B 9 Effect of software pre selector 12 Power Spectral Density Measurement with N9041B 15 Occupied Ba...

Страница 6: ...6 Keysight E8740A 060 Start up Guide THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK...

Страница 7: ...rger than 1 GHz and which requires time sampled data the down converted signal can be routed to the rear wideband IF connector The IF signal can then be analyzed with a DSO804A oscilloscope and VSA896...

Страница 8: ...his guide a test radar signal was generated The modulation used was FMCW Frequency Modulated Continuous Wave with pulse period of 1 to 2 ms Both up and symmetrical FMCW was used A Keysight M8195A 65GS...

Страница 9: ...t the full range input attenuation to zero a Select the Amplitude panel or press the AMPTD key b Select Attenuation tab and tap the Full Range Atten control Enter 0 dB using the soft numeric keypad c...

Страница 10: ...e level from 74 to 84 GHz a Select the Marker panel or press the Marker key b Select the Settings tab and in the Marker Frequency control enter 79 0 GHz c Select Marker Function tab and then the Band...

Страница 11: ...Keysight E8740A 060 Start up Guide 11 Figure 1 Average noise density marker noise at 79 GHz Step Action Notes...

Страница 12: ...which avoids adding additional noise unlike a physical pre selector Step Action Notes 1 Turn on radar source a Connect the radar source to the RF2 port as shown in Figure Observe the spectrum as in F...

Страница 13: ...on process This includes the low side image frequencies which was not completely filtered by the output image filter in the signal generation set up as described in the section Equipment and Software...

Страница 14: ...ide Figure 4 FMCW spectrum without software pre selector 3 Reactivate the software pre selector after viewing waveform a Follow the sequence of the previous step but this time enable the Software Pres...

Страница 15: ...enter 5 0 GHz Ensure that the detector is already in RMS average mode See step 6 of Viewing the noise floor of the N9041B on page 9 2 Change analyzer resolution bandwidth RBW a Select the BW panel or...

Страница 16: ...16 Keysight E8740A 060 Start up Guide Figure 5 Average power spectral density using marker band power function Step Action Notes...

Страница 17: ...mode which measures the bandwidth containing 99 0 by default of the total transmission power Step Action Notes 1 Change to OBW Mode a Press the MODE MEAS hardkey or tap the Screen tab b For Mode Measu...

Страница 18: ...p on the Res BW and Video BW and enter the required parameters accordingly Figure 7 shows the display Figure 7 Spectrum analyzer in OBW mode 4 The readout shows by default 99 OBW of the total power Th...

Страница 19: ...b For Mode Measurement and View choose Spectrum Analyzer Swept SA and Normal This step is required only if spectrum analyzer was in OBW mode after the previous exercise 2 Set the center frequency and...

Страница 20: ...xt Peak Next Pk Right or Next Pk Left controls Change Peak Threshold level in the Pk Search Config tab to make peak search navigation easier Figure 8 Peak power spectrum For the purpose of this sectio...

Страница 21: ...l toggle the Swept Zero switch to Zero Span d Select the BW panel In the Settings tab change the Res BW and Video BW to 8 0 MHz ETSI EN302264 1 document specifies that radiated peak power should ideal...

Страница 22: ...equency span a Select the Frequency panel or press the FREQ hard key b In the Start Freq control enter 25 0 GHz In the Stop Freq control enter 77 0 GHz The detector should be in peak mode If not see s...

Страница 23: ...Keysight E8740A 060 Start up Guide 23 Figure 10 Out of band spurious sweep Step Action Notes...

Страница 24: ...om the N9041B to the oscilloscope s Ch1 input as shown in Figure 11 below b Connect the 10 MHz OUT port from the N9041B to the 10 MHz Ref In of the DSOS804 Figure 11 Connection diagram between the N90...

Страница 25: ...the Attenuation tab and tap the Full Range Atten control Enter 0 dB using the soft numeric keypad c Tap the Mech Atten control and enter 0 dB with the soft numeric keypad Or set the attenuation level...

Страница 26: ...ware did not start automatically when launched Note that some working knowledge of VSA software is required to use this section of the guide Please refer to VSA89600 help documentation to learn how to...

Страница 27: ...sBW tab set the parameters to as shown below f In Input Analog tab set the appropriate vertical Range manually or use the Auto range to optimize S N Figure 13 shows the resulting waveform with the FMC...

Страница 28: ...28 Keysight E8740A 060 Start up Guide Figure 13 Output from Ext IF out connector Spectrum seen on VSA89600 and oscilloscope Step Action Notes...

Страница 29: ...to 79 GHz as the center frequency a At the Input User Corrections dialog key in the settings as shown below b In the spectrum trace open the Trace XScale Dialog Trace XScale uncheck Full Scale and ent...

Страница 30: ...0 Keysight E8740A 060 Start up Guide Figure 14 The spectrum on VSA89600 after the correction in step 3 The frequency axis now shows the RF frequency and in the correct positive scale Step Action Notes...

Страница 31: ...r to the oscilloscope input a Perform the steps described in Using Wideband IF Output on page 24 up to step 9 2 Change measurement type to FMCW Analysis a Activate the analysis From the MeasSetup menu...

Страница 32: ...to the knowledge that the generated FMCW test has pulse region length of 2 ms b Use other parameters if required to help the software detect and synchronize the FMCW regions 5 Set time parameters for...

Страница 33: ...Keysight E8740A 060 Start up Guide 33 Figure 15 FMCW analysis with the 89601B BN BHP FMCW radar analysis Step Action Notes...

Страница 34: ...34 Keysight E8740A 060 Start up Guide THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK...

Страница 35: ...n is subject to change without notice Always refer to the Keysight website for the latest revision Keysight Technologies 2017 Edition 1 November 1 2017 Printed in Malaysia E8749A 90600 E8749A 90600 ww...

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