Keysight Technologies 423B Operating And Service Manual Download Page 1 | Manualshive

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Keysight 423B and 8470B

Detectors

Operating and

Service Manual

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Summary of Contents for 423B

Page 1: ...Keysight 423B and 8470B Detectors Operating and Service Manual ...

Page 2: ...these rights customarily provided to the public to use modify reproduce release perform dis play or disclose commercial computer soft ware or commercial computer software documentation No additional government requirements beyond those set forth in the EULA shall apply except to the extent that those terms rights or licenses are explicitly required from all providers of commercial computer softwar...

Page 3: ... Symbols The following symbols on the instrument and in the documentation indicate precautions which must be taken to maintain safe operation of the instrument Regulatory Markings When you see this symbol on your instrument you should refer to the instrument s instruction manual for important information This symbol indicates hazardous voltages The laser radiation symbol is marked on products that...

Page 4: ...nitoring and 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 visit http about keysight com en companyinfo environment takeback shtml for more information Sales and Technical Support To contact Keysight for sales and technical support refer to the supp...

Page 5: ...rective 4 Product category 4 Sales and Technical Support 4 List of Figures 7 List of Tables 9 Description 11 Features 11 Options 11 Connectors 11 Installation 12 Initial inspection 12 Storage and shipment 12 Operating Information 15 Operator s check 16 Performance Tests 17 Frequency response test 17 Higher level sensitivity test 17 Low level sensitivity test 17 Match test SWR 17 Service 18 ...

Page 6: ...6 Keysight 423B and 8470B Operating and Service Manual THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK ...

Page 7: ...Keysight 423B and 8470B Operating and Service Manual 7 List of Figures Figure 1 Peak power measurement 16 ...

Page 8: ...8 Keysight 423B and 8470B Operating and Service Manual THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK ...

Page 9: ...Keysight 423B and 8470B Operating and Service Manual 9 List of Tables Table 1 Specifications 13 ...

Page 10: ...10 Keysight 423B and 8470B Operating and Service Manual THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK ...

Page 11: ...frequency range of the 423B is 10 MHz to 12 4 GHz The frequency range of the 8470B is 10 MHz to 18 GHz AM modulation can be detected up to about 1 MHz Options The 423B and 8470B detectors are available with the following non exclusive options Option 001 Matched pair of detectors Option 002 Furnished with matched load resistor for optimum square law characteristics Option 003 Positive polarity outp...

Page 12: ...air or replacement of the damaged or defective equipment Keep the shipping materials for the carrier s inspection 3 If you are returning the instrument for service repackaging the instrument requires original shipping containers and materials or their equivalents Keysight can provide packaging materials identical to the original materials Any adjustment maintenance or repair of this product must b...

Page 13: ...ically 1 3 kΩ shunted by 35 to 65 pF typically 50 pF Output polarity Negative refer to options for positive polarity units Detector element Supplied Bias Not required Noise 50 mVpp with CW applied to produce 100 mV output Options 423B and 8470B Option 002 Furnished with matched load resistor for optimum square law characteristics of 25 C within 0 5 dB from square law over a range of at least 30 dB...

Page 14: ...ong 20 mm diameter 2 47 in long 0 78 in diameter 64 mm long 19 mm diameter 2 50 in long 0 75 in diameter a RF may leak through the output connector below 1 GHz It can be reduced if objectionable with a suitable low pass filter b Measured at 30 dBm Flatness is the peak to valley range of the response c External load resistance 50 kΩ d Specifications given for 25 C unless otherwise noted e Measureme...

Page 15: ...he detector DO NOT NEEDLESSLY HANDLE THE DETECTOR ELEMENT USED IN CRYSTAL DETECTOR Static electricity which builds up on a person especially on a cold dry day must never be allowed to discharge through the detector Avoid exposed leads to or from the detector since these are often touched accidentally NOTE When using the detector with an oscilloscope and the waveshapes to be observed have rise time...

Page 16: ...enerator output to make detector s output equal to that of pulse generator as indicated by markings on the graticule step A 3 Leave the CW generator at setting obtained in step B Disconnect the detector from CW generator 4 Connect the output of CW generator to the power meter step C Measure the adjusted levels set in step B of the CW generator output The peak power of the pulse envelope observed i...

Page 17: ... voltmeter or oscilloscope as the indicator connect the detector to the signal source Adjust the RF power level for a 100 mV detected output from the detector using a CW signal 2 Disconnect the detector from the signal source and measure the RF output level The RF output level should be 0 35 mW 3 Repeat steps 1 and 2 for all frequencies of interest across the band Low level sensitivity test 1 Usin...

Page 18: ... internal adjustments and should not be opened it should only be repaired by service trained personnel Should it become necessary to return the 423B and 8470B for repair or service contact your nearest Keysight Sales and Service Center Refer to Sales and Technical Support on page 4 of this manual ...

Page 19: ...n is subject to change without notice Always refer to the Keysight website for the latest revision Keysight Technologies 2014 2019 Edition 3 January 15 2019 Printed in Malaysia 00423 90103 00423 90103 www keysight com ...

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