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8

Agilent X/P/K281C Adapters Operating and Service Manual 

1

Introduction

Product Overview

The X281C, P281C, and K281C adapters provide a 
convenient means of coupling between waveguide and 
coaxial systems. Power can be transmitted in either 
direction, and each adapter covers the full frequency range 
of its waveguide size. A step- like internal structure 
transforms the waveguide impedance to the 50 

Ω

 impedance 

of the coaxial line.

Options

Option 006

Option 006 adds two alignment holes to the waveguide 
flange. The dimensions of the Option 006 alignment holes 
are provided in the following table.

Table 1-1

Option 006 Alignment Hole Measurement Dimensions

Model

Alignment Hole 

Diameter “A”

Dimension “B”

Dimension “C”

X281C

3.175 mm

(+0.014 to 0.0)

15.49 mm

16.26 mm

P281C

3.175 mm

(+0.014 to 0.0)

12.62 mm

12.14 mm

K281C

2.381 mm

(+0.014 to 0.0)

8.13 mm

8.51 mm

Summary of Contents for K281C

Page 1: ...Agilent Technologies Agilent X P K281C Adapters Including Options 006 012 013 106 Operating and Service Manual ...

Page 2: ...ms covering the material in this document that conflict with these terms the warranty terms in the sep arate agreement shall control Technology Licenses The hardware and or software described in this document are furnished under a license and may be used or copied only in accor dance with the terms of such license Restricted Rights Legend U S Government Restricted Rights Soft ware and technical da...

Page 3: ...fety Earth Ground This is a Safety Class I product provided with a protective earthing terminal An uninterruptible safety earth ground must be provided from the main power source to the product input wiring terminals power cord or supplied power cord set Whenever it is likely that the protection has been impaired the product must be made inoperative and secured against any unintended operation Bef...

Page 4: ...ailand 1 800 629 485 800 810 0189 800 938 693 1 800 112 929 81 426 56 7832 080 769 0800 1 800 888 848 1 800 375 8100 0800 047 866 1 800 226 008 Europe Austria Belgium Denmark Finland France Germany Ireland Italy Netherlands Spain Sweden Switzerland French Switzerland German United Kingdom Other European Countries 0820 87 44 11 32 0 2 404 93 40 45 70 13 15 15 358 0 10 855 2100 0825 010 700 01805 24...

Page 5: ...cautions 13 Operating Procedure 13 Performance Test SWR 14 Adjustments 14 3 Specification 15 General Specifications 16 Physical Specifications 16 Specifications 16 Mechanical Characteristic 18 Pin Depth 18 Environmental Specifications 21 Safety and Regulatory Markings 22 Declaration of Conformity 24 4 Service Information 25 Service Information 26 Replacing the Center Conductor Contact 26 Replaceab...

Page 6: ...6 Agilent X P K281C Adapters Operating and Service Manual This page is intentionally left blank ...

Page 7: ...ies Agilent X P K281C Adapters Operating and Service Manual 1 Introduction Product Overview 8 Options on page 8 Instruments Covered by Manual on page 10 This chapter provides an overview of the Agilent X P K281C Adapters ...

Page 8: ... step like internal structure transforms the waveguide impedance to the 50 Ω impedance of the coaxial line Options Option 006 Option 006 adds two alignment holes to the waveguide flange The dimensions of the Option 006 alignment holes are provided in the following table Table 1 1 Option 006 Alignment Hole Measurement Dimensions Model Alignment Hole Diameter A Dimension B Dimension C X281C 3 175 mm...

Page 9: ...or to replace the standard 3 5 mm f connector Option 013 Option 013 for the X281C offers a Type N f connector to replace the standard 7 mm connector Option 013 is not offered for the K281C and the P281C Option 106 Option 106 is only available for the K281C It replaces the standard 3 5 mm f connector with a 3 5 mm m connector and adds two alignment holes to the waveguide flange The dimensions of th...

Page 10: ...y Manual The adapters covered by this manual have a two part serial number The first four digits and letter constitute the serial number prefix The last five digits form the sequential suffix that is unique to each adapter The contents of this manual apply to adapters prefixed at 3032A and above ...

Page 11: ...e Manual 2 Installation Initial Inspection 12 Operation and Safety Precautions 13 Operating Procedure on page 13 Performance Test SWR on page 14 Adjustments on page 14 This chapter provides you important information on how to check and prepare your instrument for operation ...

Page 12: ...s manual Agilent Technologies will arrange for repair or replacement of the damaged or defective equipment Keep the shipping materials for the carrier s inspection 3 If you are returning the instrument under warranty or for service repackaging the instrument requires original shipping containers and materials or their equivalents Agilent Technologies can provide packaging materials identical to th...

Page 13: ...the allowable energy and power levels may result in damage to the adapter or associated equipment Care should be taken to protect the face of the flange from any damage that would prevent close surface to surface contact Any burring denting or scratching may increase RF leakage and the reflection coefficient of the waveguide connection The supplied plastic cover should be used to protect the flang...

Page 14: ...results must be less that those listed in Table 3 1 plus the measurement uncertainty of the measuring system Measurements may be made using a standard reflectometer setup To ensure satisfactory performance make sure flanges and coaxial connectors are not damaged or worn Adjustments Adjustments should not be made unless the adapter does not meet specifications or unless the unit has been physically...

Page 15: ...ral Specifications 16 Physical Specifications on page 16 Specifications on page 16 Mechanical Characteristic 18 Pin Depth on page 18 Environmental Specifications 21 Safety and Regulatory Markings 22 Declaration of Conformity 24 This chapter provides the specifications of the Agilent X P K281C Adapters ...

Page 16: ...ate and are printed in italic Model X281C P281C K281C Net weight 210 g 7 20 oz 110 g 4 0 oz 40 g 1 3 oz Dimensions Length Width Height 73 mm 2 9 in 41 mm 1 6 in 61 mm 2 4 in 52 mm 2 0 in 33 mm 1 3 in 55 mm 2 2 in 35 mm 1 4 in 22 mm 0 9 in 38 mm 1 5 in Waveguide size Nominal outer diameter 25 40 x 12 70 mm 1 00 x 0 50 in 17 83 x 9 93 mm 0 70 x 0 39 in 12 70 x 6 35 mm 0 50 x 0 25 in Table 3 1 Specif...

Page 17: ...vailable Not available 3 5 mm female 3 5 mm male Not available 3 5 mm male with 6 alignment holes Specifications in this table are measured with no gap between the full diameters of the male and female center conductors The power that can be handled will be a function of the size of the center conductor The majority of the heat flow will be via conduction The weak point is the coax portion The wav...

Page 18: ...he center conductor mating plane differs from being flushed with the outer conductor mating plane The pin depth of a connector can be in one of two states protruding or recessed Figure 3 2 Figure 3 3 and Figure 3 4 show a visual representation of proper pin depth for connector types for standard and option models Table 3 2 Connector Types for Standard and Options Model X281C P281C K281C Standard O...

Page 19: ...Specification 3 Agilent X P K281C Adapters Operating and Service Manual 19 Figure 3 2 Type N Connectors Figure 3 3 3 5 mm Connectors ...

Page 20: ...20 Agilent X P K281C Adapters Operating and Service Manual 3 Specification Figure 3 4 7 mm Connector ...

Page 21: ... environmental specifications The following are the summarized environmental specifications for these adapters Store the adapters in a clean dry environment Table 3 3 Agilent X P K281C Environmental Specifications Temperature Operating Storage Shipment 0 C to 55 C 55 C to 75 C Relative Humidity Operating Storage Shipment 95 relative at 40 C Altitude Operating Storage Shipment 4600 m 15000 ft 15000...

Page 22: ...t ac input The CE mark is a registered trademark of the European Community If it is accompanied by a year it indicates the year the design was proven ff N10149 The C Tick mark is a registered trademark of the Australian Spectrum Agency The CSA mark is a registered trademark of the Canadian Standards Association ISM1 A This text indicates that the instrument is an Industrial Scientific and Medical ...

Page 23: ...Specification 3 Agilent X P K281C Adapters Operating and Service Manual 23 This symbol indicates that the power line switch is OFF or in STANDBY position ...

Page 24: ...s Operating and Service Manual 3 Specification Declaration of Conformity A copy of the Manufacturer s Declaration of Conformity for this instrument can be obtained by contacting your local Agilent Technologies sales representative ...

Page 25: ...ing and Service Manual 4 Service Information Service Information 26 Replacing the Center Conductor Contact on page 26 Replaceable Parts 27 This chapter provides service instructions and lists the available replaceable parts for the Agilent X P K281C Adapters ...

Page 26: ...ductor Do not use excessive force when tightening center conductor parts Model K281C All Options To replace the center conductor you will need a 5 64 inch hexagonal nut driver In some units the center conductor mounting hole was made oversized to allow for a slight adjustment When the center conductor is replaced in these units it may be necessary to readjust and retest if the unit does not meet s...

Page 27: ...l Figure 4 1 Replaceable Parts NOTE Table 1 1 on page 8 gives dimensional tolerances for Option 006 that can be expected to yield satisfactory results It may be necessary to try various combinations of spacers and shims to obtain proper dimensions The use of at least one shim is recommended because of electro chemical differences between the connector body and the adapter body Refer to the appropr...

Page 28: ...ed 85130 20002 collet holder Shim 5020 8540 0 013 mm or 5020 8541 0 025 mm Center conductor Not replaceable Spacer Not replaceable Washer Not replaceable Nut Not replaceable Blank label Not replaceable Flange cap 5040 0354 X281C Option 012 Connector body 1250 0916 Male 1250 0918 Nut 1250 0016 Ring Spacer 00281 20027 0 05 mm or 00281 20028 0 075 mm or 00281 20049 0 025 mm Center conductor contact 5...

Page 29: ...nnector body 1250 0914 Spacer 00281 20027 0 05 mm or 00281 20028 0 075 mm or 00281 20049 0 025 mm Center conductor contact 5180 0854 Shim 5020 8540 0 013 mm or 5020 8541 0 025 mm Center conductor Not replaceable Spacer Not replaceable Washer Not replaceable Nut Not replaceable Blank label Not replaceable Flange cap 5040 0354 Table 4 1 X281C Replaceable Parts continued Description Part Number ...

Page 30: ...Connector body 1250 1466 Spacer 00281 20027 0 05 mm or 00281 20028 0 075 mm or 00281 20049 0 025 mm Center conductor contact 85050 20001 G slotted 85130 20002 collet holder Shim 5020 8540 0 013 mm or 5020 8541 0 025 mm Center conductor Not replaceable Spacer Not replaceable Washer Not replaceable Nut Not replaceable Blank label Not replaceable Flange cap 5040 0358 ...

Page 31: ... 00281 20043 Spacer 000281 20045 Washer 3050 0261 Nut 0608 0003 Blank label Not replaceable Flange cap 5040 0357 Required but not Supplied 5 64 inch hexagonal nut driver K281C Option 012 Option 106 Connector body 1250 1509 Spacer 5021 9679 0 013 mm or 5021 9680 0 025 mm or 5021 9681 0 051 mm Center conductor contact 00281 20044 Spacer 000281 20045 Washer 3050 0261 Nut 0608 0003 Blank label Not rep...

Page 32: ...K281C Adapters Operating and Service Manual 4 Service Information Miscellaneous Items Loctite 222 0470 0573 Operating and Service Manual 00281 90043 Table 4 3 K281C Replaceable Parts continued Description Part Number ...

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