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HP 81110A with 81112A Perf. Test  p91


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5




5Agilent 81110A/'12A
Performance Test




                       1
Agilent 81110A/'12A Performance Test




Introduction
                 Use the tests in this chapter if you want to check that the Agilent
                 81110A Pulse Generator Frame with the Agilent 81112A 330
                 MHz Output Channel(s) is working correctly. Before starting any
                 testing allow all test equipment to warm up for at least 30 minutes.

Conventions Used
              When referring to actions that you perform during the tests, the
              following conventions are used:

                 FUNCTION This indicates that a labelled button must be pressed

                 [[MODE/TRG] This shows that a soft-key must be pressed. A soft-
                 key is an unlabelled button whose label is shown on the display,
                 and which can vary according to the job that the button is doing

                 CONTINUOUS PULSES This is an option shown on the dis-
                 play, and is selected by use of the vernier keys. It is shown in
                 upper or lower case to match the case displayed.

Test Results Tables
               Tables for entering the results of the tests are included at the end
               of this chapter. The tests are numbered and reference numbers for
               each Test Result (TR) are given in a small table at the end of each
               test. The reference number shows you where the actual results
               should be entered in the Test Results Tables.

                 The Test Results tables at the end of the chapter should be photo-
                 copied, and the Test Results entered on the copies. Then, if the
                 tests need to be repeated, the tables can be copied again.




2                     Agilent 81110A/'12A Performance Test
                                  Agilent 81110A/'12A Performance Test



If Channel 2 has been fitted to your instrument, make an extra
copy of the Test Results tables for entry of the results of tests on
that channel. In this case, however, it is not necessary to repeat the
Period tests, as these are common to both channels.




      Agilent 81110A/'12A Performance Test                          3
Agilent 81110A/'12A Performance Test




Recommended Test Equipment and Accessories

                      The following tables list the recommended test equipment you
                      need to perform all the tests in this chapter. You can use alternative
                      instruments if they meet the critical specifications given. The test
                      set-ups and procedures assume you are using the recommended
                      equipment.

              Test Equipment                Model                         Critical Specifications

         Oscilloscope                Agilent 54121T     20 GHz, 10 bit vertical resolution, Histogram
         or

         Oscilloscope                Agilent 54750A +   20 GHz, 15 bit vertical resolution, Histogram
                                     Agilent 54751A

         Counter                     Agilent 5334B      Period and Time Interval measurements
                                     #010, 030          Oven Osci, 1.3 GHz C-Channel
         or

         Counter                     Agilent 53132A     Frequency measurements > 150 MHz
                                     #001/010, 030      High-Stability Timebase, 3 GHz Channel

         Digital Voltmeter           Agilent 3458A      DCV up to 20 V

         Pulse Generator             Agilent 8110A      up to 150 MHz

         Delay line                  Agilent 54008A     22 ns




                              Accessories                         Model                 Critical Specifications

         Digitizing Oscilloscopes Accessories
         Attenuators                                        33340C#020              20 dB
                                                            33340C#006               6 dB
         Power Splitter                                     11667B
         SMA/SMA (m-m) adaptor                             1250-1159
         SMA/BNC Adaptor                                   1250-1700
         SMA Cable                                         8120-4948




4                            Agilent 81110A/'12A Performance Test
                                                       Agilent 81110A/'12A Performance Test




                        Accessories                     Model          Critical Specifications

        50  Feedthrough Termination               10100C           2 W,1%
                                                  See Figure       10 W,0.1%

        Adapter                                   1251-2277        BNC to Banana

        Cable Assemblies, BNC                     8120-1839

        Torque Wrench                             8710-1582        5/16 in, 5 lb-in (56 Ncm)



NOTE:                    When you connect the test equipment for the first time, and
                         whenever you change the setup during the course of these tests,
                         use the 8710 - 1582 torque wrench to tighten and loosen SMA
                         connectors. This will ensure that the connectors are at the correct
                         tightness and give the best signal transfer.




                          Agilent 81110A/'12A Performance Test                                   5
Agilent 81110A/'12A Performance Test



50 Ohm, 0.1%, 10 W Feedthrough Termination

                 The following figure provides a schematic and a parts list except
                 for the case. The case must provide shielding and maintain
                 grounding integrity.




                    50 Ohm, 0.1%, 10 W Feedthrough Termination


                 The following parts are required:

                 1. R1 = 53.6, 1%, 10 W; Part Number: 0699-0146.

                 2. R2 = 200 , 10%, 0.5 W, Variable trimmer; Part Number:
                    2100-3350.

                 3. R3 = 681 ;, 1%, 0.5 W; Part Number: 0757-0816.

                 4. BNC (M): Part Number: 1250-0045.

                 5. BNC (F): Part Number: 1250-0083.



6                     Agilent 81110A/'12A Performance Test
                                              Agilent 81110A/'12A Performance Test




Getting Started
              The AgilentAgilent 81110A is controlled by selecting options in a
              series of pages that are displayed on the instrument's screen.
              These options vary with the boards that are fitted in the instru-
              ment. When the Agilent 81110A is being tested, therefore, differ-
              ent situations can arise, depending on whether you have a standard
              instrument or one that has had additional boards fitted. The fol-
              lowing examples illustrate this

Typical Examples of Displayed Screens



                    Per 1.000



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