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30q 3 MS
Option 001 Supplement to Operating Manual
Model HP 3585B
Spectrum Analyzer
Warning
To prewent potential fire or shock hazard, do not
expose equipment to rain or moisture.
HEWLETT
Ea PACKARD
HP Part Numbers 0358~90012
Microfiche Part Numbers 0358s90212
Printed in U.S.A.
Printdate 08\89
Edition 1
Ii0889
COPYRIGHT AND DISCLAIMER NOTICE
Copyright - Agilent Technologies, Inc. Reproduced with the permission of Agilent
Technologies Inc. Agilent Technologies, Inc. makes no warranty of any kind with regard
to this material including, but not limited to, the implied warranties of merchantability
and fitness for a particular purpose. Agilent Technologies, Inc. is not liable for errors
contained herein or for incidental or consequential damages in connection with the
furnishing, performance, or use of this material or data.
Table of Contents
GeneralInformation 1-l
InstallationVeriticatiou , . . . ,*. .. .. . . ... ... .. . . . , l- 1
Owrview 2-l
What is SweepGating? ........... ......... . . . . ............ 2-l
How Doesit Work? ............. ......... . . . ............ 2-2
GateDelay .................. ......... . . ............ 2-4
Choiceof Trigger Modes .......... ......... . . . ............ 2-4
Using Sweep Gating 3-l
CallingupSwwp GatingMenus .... ......... . . .3-l
SweepGatingStatusLiie ....... ......... .3-3
Using GateDelay ............ ......... .3-4
Using ExternalGatemode ....... ......... * 3-5
Using Timed Gatemode ........ ......... .3-l
Using Normal mode .......... ......... .3-10
Quick Entry ............... ......... ,3-11
FlemotcOperation 4-l
Appendix A-i
Determinationof Trigger Holdoff Time . . . . . . . . . . . . . . . . . . . . ...*.. A-l
ExternalGateMode: . .. ..... ...... . . . . . . . . . . ...* . A-l
Timed GateMode: . . . . , . . . ....... ......... . . *. . . A-l
Appendix B-l
~nctiona~C~a~gesto~eHP3~~ .. ......... ...,.... . . :. , .B-1
General Information
1
General Information
This Operating Manual Supplement introduces and explains Option 001 (Sweep Gating) for the HP
3S85B Spectrum Analyzer. To fully understand and use the Sweep Gating feature, you should use
this supplement in conjunction with the HP 3S85B Operating Manual. When necessary,individual
parts of the operating manual are referenced within this supplement+
Specifications for the standard HP 3S8SB (when performing non-gated measurements) are not
changedwith the installation of the Option GOI. When using gated modes, measurement accuracy
will settle to within k 0.2 dB of stated accuracyif you use a gate delay that is 2 the minimum
recommended signal setup time.
The Counter function (Marker/Continuous Entry section) may give incorrect results when trying to
measure burst signals. This happens becausethe counter will continue to count during the period of
time when the desired signal is not present.
Installation Verification
Verify that the Gated Sweep option is installed using the following procedure:
Press
hstr Preset
(Entry section)
Press(blue) Merru The tnmu shownin figure l-l shouldappearon the screen.
(Trimcr section)
PressExt With MI signal appliedto the externaltriggerinput the diiplayedttacewilj not be
(Triger section) updated.
twice
PressFree Run The displayedtraceshouldnrnvbe .xntmuouslyupdated.
(Trigger section)