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AMT75 Impedance Adapter Instructions

1

General Safety Summary

Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it. To avoid potential hazards, use this
product only as specified.

Ground the Product.

 This product is indirectly grounded through the grounding

conductor of the mainframe power cord. To avoid electric shock, the grounding
conductor must be connected to earth ground. Before making connections to the
input or output terminals of the product, ensure that the product is properly
grounded.

Observe All Terminal Ratings.

 To avoid fire or shock hazard, observe all ratings

and markings on the product. Consult the product manual for further ratings
information before making connections to the product.

The common terminal is at ground potential. Do not connect the common
terminal to elevated voltages.

Do Not Operate Without Covers.

 Do not operate this product with covers or panels

removed.

Do Not Operate With Suspected Failures.

 If you suspect there is damage to this

product, have it inspected by qualified service personnel.

Do Not Operate in Wet/Damp Conditions.

Do Not Operate in an Explosive Atmosphere.

Keep Product Surfaces Clean and Dry.

Terms in this Manual.

 These terms may appear in this manual:

WARNING.

 Warning statements identify conditions or practices that could result

in injury or loss of life.

CAUTION.

 Caution statements identify conditions or practices that could result in

damage to this product or other property.

To Avoid Fire or

 Personal Injury

Symbols and Terms

Summary of Contents for 070-9479-00

Page 1: ...furbished and purchasing new Financing options such as Financial Rental and Leasing are also available on application TMG will assist if you are unsure whether this model will suit your requirements C...

Page 2: ...to 50 Ohm Impedance Adapter 070 9479 00 There are no current European directives that apply to this product This product provides cable and test lead connections to a test object of electronic measuri...

Page 3: ...issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Printed in the U S A Tektronix Inc P O Box...

Page 4: ...tions This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this...

Page 5: ...you may purchase up to five years of Calibration Services Service Assurance Advantages H Priced well below the cost of a single repair or calibration H Avoid delays for service by eliminating the nee...

Page 6: ...nsult the product manual for further ratings information before making connections to the product The common terminal is at ground potential Do not connect the common terminal to elevated voltages Do...

Page 7: ...t us by e mail tm_app_supp tek com For product support outside of North America contact your local Tektronix distributor or sales office Service Support Contact your local Tektronix distributor or sal...

Page 8: ...on signals from a 75 W coax cable to the 50 W input of an oscillo scope while minimizing aberrations and reflections The AMT75 adapter fully complies with ANSI T1 102 and ITU T G 703 50 W TekProbe out...

Page 9: ...dapter is actually B 5 When you use this adapter on these oscilloscopes divide the measurement or scale factor by 2 to obtain the correct value When you connect the adapter to instruments that do not...

Page 10: ...e Mb s 270 143 44 736 139 264 51 84 155 51 8 448 34 368 139 264 Connection to Tektronix TDS Series with the TekProbe II Interface TekProbe input DITS template test signal BNC to SMA 50 terminator 50 B...

Page 11: ...64 Mb s E 4 139 264 Mb s STS 1 51 84 Mb s Compliance with industry standards ANSI T1 102 and ITU T G 703 n Input impedance 75 1 5 at DC Input VSWR return loss typical 1 1 1 26 45 dB to 1 GHz see Figur...

Page 12: ...dapter AMT75 Impedance Adapter Instructions 7 1 100 1 090 1 080 1 070 1 060 1 050 1 040 1 030 1 020 1 010 1 000 VSWR Frequency MHz 1 0 10 100 1000 0 10 20 30 40 50 Return loss dB Figure 3 Typical VSWR...

Page 13: ...e equipment Table 1 Test equipment Description Minimum requirements Example product Power supply 1 1 VDC out across 75 W with 0 5 mV resolution Wavetek 9100 Digital multimeter 1 5 1 2 digit with sense...

Page 14: ...onnect the input and sense of the DMM to the output of the AMT75 adapter with a 50 W BNC T adapter two 50 W BNC cables and two BNC banana adapters 50 000 Multimeter 75 terminator 50 BNC cables 50 T ad...

Page 15: ...wn in Figure 5 CAUTION To avoid damaging the 75 W input use only 75 W connectors and 75 W cables on the 75 W input 75 000 W Multimeter 75 W BNC cables and 75 W T adapter 50 W BNC adapter 50 W terminat...

Page 16: ...To avoid damaging the 75 W input use only 75 W connectors and 75 W cables on the 75 W input Multimeter Power supply 1 0000 V 50 W termination 50 W BNC adapter 75 W BNC cables and 75 W T adapters Figu...

Page 17: ...upply 50 BNC adapter 75 BNC cables and 75 T adapter Figure 7 Measuring the attenuation accuracy 6 Change the DMM range as follows DMM Setting Range 1 V 7 Activate the power supply 8 Check that the vol...

Page 18: ...mperature RH Date of Calibration Technician AMT75 Performance Test Minimum Incoming Outgoing Maximum Output Impedance 50 1 5 49 25 __________ __________ 50 75 Input impedance 75 1 5 73 875 __________...

Page 19: ...14 AMT75 Impedance Adapter Instructions Replaceable Parts 1 2 3 4 NOTE Parts illustrated with dashed lines are not replaceable 5 Figure 8 Replaceable parts...

Page 20: ...Performance Verification AMT75 Impedance Adapter Instructions 15 1 2 3 4 5 Figure 9 Optional accessories...

Page 21: ...R SMA ELEC FEMALE BNC TO MALE SMA 24931 29JP170 1 3 012 0104 00 1 CA ASSY RF COAXIAL RFD 50 OHM RG58 U 18 0 L MALE BNC X FEMALE BNC 74868 35001 1 4 012 1339 00 1 CA ASSY RF COAXIAL RFD 75 OHM 24 L BNC...

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