Page 2 - Notice
ii 281A/B Operating And Service Manual Notice The information contained in this document is subject to change without notice. Agilent Technologies 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 pa...
Page 3 - What You’ll Find In This Manual...; Specifications, page 2
281A/B Operating And Service Manual iii What You’ll Find In This Manual… • Overview, page 1 • Specifications, page 2 • Inspection and Shipping, page 3 • Operation, page 5 • Replaceable Parts, page 7
Page 4 - Warranty; Certification
iv 281A/B Operating And Service Manual Warranty Custom systems are warranted by contractual agreement between Agilent Technologies and the customer. Certification Agilent Technologies, Inc., certifies that this product met its published specifications at the time of shipment from the factory. Agilen...
Page 5 - Assistance
281A/B Operating And Service Manual v NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. AGILENT TECHNOLOGIES SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OR MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. EXCLUSIVE REMEDIES. THE REMEDIES PROVIDED HEREIN ARE BUYER’S SOLE AND EXCLUSIVE REMEDIES. AGILE...
Page 6 - Service and Support; Asia Call Center Numbers
vi 281A/B Operating And Service Manual Service and Support By internet, phone, or fax, get assistance with all your test and measurement needs. Online assistance: www.agilent.com/find/assist United States(tel) 1 800 452 4844 Latin America(tel) (305) 269 7500(fax) (305) 269 7599 Canada(tel) 1 877 894...
Page 7 - Safety and Regulatory Information; WARNING; CAUTION; Instrument Markings
281A/B Operating And Service Manual vii Safety and Regulatory Information Review this product and related documentation to familiarize yourself with safety markings and instructions before you operate the instrument. This product has been designed and tested in accordance with international standard...
Page 8 - Before Applying Power
viii 281A/B Operating And Service Manual Safety 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 s...
Page 9 - Overview; Description
281A/B Adapters Operating and Service Manual 1 Overview Description Agilent 281 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 with an SWR of l...
Page 10 - Specifications; Table 1
2 281A/B Adapters Operating and Service Manual Specifications Specifications Table 1 281A/B Specfications CAUTION 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 wavegu...
Page 11 - Inspection and Shipping; Inspection; Mechanical Check; Claims; Shipping; Using Original Packaging; Use a strong shipping container. A double-wall carton made of
281A/B Adapters Operating and Service Manual 3 Inspection and Shipping Inspection and Shipping Inspection Mechanical Check If external damage to the shipping carton is evident, the carrier’s agent should be present when the adapter is unpacked. Check the adapter for external damage. If damage is evi...
Page 12 - Seal the shipping container securely
4 281A/B Adapters Operating and Service Manual Inspection and Shipping 3. Use enough shock-absorbing material (3 to 4-inch layer) around all sides of the adapter to provide firm cushion and prevent movement inside the container. 4. Seal the shipping container securely 5. Mark the shipping container ...
Page 13 - Operation; Protest Flanges; When connecting an adapter to a waveguide.; Connector Types; Type N Connectors; Figure 2 Dimensions of Type N Connectors
281A/B Adapters Operating and Service Manual 5 Operation Operation Protest Flanges 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 will increases RF leakage and the reflection coefficient ...
Page 14 - Precision 7 mm Connectors; Performance Test; The maximum SWR for the Adapters are listed in
6 281A/B Adapters Operating and Service Manual Operation Precision 7 mm Connectors Except for Option 13, the 281B model adapter has a APC-7 precision 7-mm coaxial connector. These connectors rely on uniform end-to end contact of both conductors for electrical continuity. Consequently, the condition ...
Page 15 - Replaceable Parts; The exploded view of
281A/B Adapters Operating and Service Manual 7 Replaceable Parts Replaceable Parts The 281A may be disassembled for part replacement, but the 281B should be returned to Agilent because liquid nitrogen and special wrenches and gauges are needed for assembly. The exploded view of Figure 3 gives inform...
Page 16 - NOTE; All 281B adapters should be returned for part replacement.
8 281A/B Adapters Operating and Service Manual Replaceable Parts NOTE All 281B adapters should be returned for part replacement. Table 2 281A Replaceable Parts Item No. Description Model No. Agilent Part No. 1 RF Connector Body X281A 5020-0213 2 Probe Assembly X281A not applicable Probe Body 1 1. Th...