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User’s and Service Guide
Agilent 11857D
7 mm Test Port Return Cable Set
Agilent Part Number 11857-90014 Supersedes: September 1999
Printed in USA October 2003
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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 particular p urpose. Agilent
Technologies shall not be liable for errors contained herein or for incidental or consequential damages in
connection with the furnishing, performance, or use of this material.
Agilent T ec hnologies assumes no respons ibilit y for the use or re liabili ty of its sof tware on equip ment that
is not furnished by Agilent Technologies.
This document contains proprietary information which is protected by copyright. All rights are reserved.
No part of this document may be photocopied, reproduced, or translated to another language without
prior written consent of Agilent Technologies.
R
ESTRICTED RIGHTS LEGEND
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252.227-7013 for DOD agencies, and subparagraphs (c)(1) and (c)(2) of the Commercial Computer
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Agilent Technologies, Inc.
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Santa Rosa, CA 95403-1799, U.S.A.
© Copyright 1986-2003 Agilent Technologies, Inc.
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Documentation Warranty
THE MATERIAL CONTAINED IN THIS DOCUMENT IS PROVIDED “AS IS,” AND IS
SUBJECT TO BEING CHANGED, WITHOUT NOTICE, IN FUTURE EDITIONS.
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DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED WITH REGARD TO
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WARRANTY TERMS IN THE SEPARATE AGREEMENT WILL CONTROL.
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User’s and Service Guide 11857-90014 3
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Contacting Agilent
Table 1 Contacting Agilent
Online assistance: www.agilent.com/find/assist
United States
(tel) 1 800 452 4844
New Zealand
(tel) 0 800 738 378
(fax) (+64) 4 495 8950
Malaysia
(tel) 1 800 828 848
(fax) 1 800 801 664
Tai w an
(tel) 0800-047-866
(fax) (886) 2 25456723
Latin America
(tel) (305) 269 7500
(fax) (305) 269 7599
Japan
(tel) (+81) 426 56 7832
(fax) (+81) 426 56 7840
Philippines
(tel) (632) 8426802
PLDT subscriber only):
(tel) (
1 800 16510170
(fax) (632) 8426809
PLDT subscriber only):
(fax) (
1 800 16510288
Peo ple’s R epubl ic of
China
(tel) (preferred):
800-810-0189
(tel) (alternate):
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(fax) 10800-650-0121
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(tel) within Bangkok:
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(fax) 000-800-650-1101
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(tel) (+31) 20 547 2323
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Hong Kong
(tel) 800 930 871
(fax) (852) 2506 9233
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General Information
To obtain optimum performance from this cable set, observe these simple precautions:
• Flex and straighten the cables as little and seldom as possible.
• Make connections carefully to avoid misalignment and connector damage or inaccurate
measurements.
• Keep the connectors free of dirt and metallic particles.
• If you must clean the connectors, try clean compressed air first. Do not use abrasives. With
a plastic swab, apply only liquid Freon (trichlorotrifluoroethane) as a solvent.
• 7 mm center conductor recession with collet removed: 0.0 to 0.003 inch.
Description
The 11857D cable set consists of two 7 mm 50 ohm cables, specified from 300 kHz to 6 GHz.
This set provides shielded RF connections to extend the test ports of S-parameter test sets
such as the 85046A. The cables can be ordered as either phase-matched or unmatched.
Model Description Qty Part Number
11857D
Standard
11857D Option
B24
Phase-matched 7 mm 50 ohm cables 2 8120-4779
Unmatched 7 mm 50 ohm cables 2 8120-8899
User’s and Service Guide 11857-90014 5
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Figure 1. Model 11857D Cables, Option B24
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Operating Characteristics
11857D
Standard
Impedance 50 ohm (nominal) 50 ohm (nominal)
Connectors 7 mm 7 mm
Phase Match ≤ 4 degrees
(at 2 GHz)
Return Loss ≥ 24 dB
(300 kHz to 3 GHz)
11857D
Option B24
≥ 24 dB
(300 kHz to 3 GHz)
Physical Characteristics
11857D
Standard
Length 61 cm
(24 inches)
n/a
11857D
Option B24
61 cm
(24 inches)
Weight (both cables):
Net 0.91 kg (2 lbs) 0.91 kg (2 lbs)
Shipping 1.36 kg (2 lbs) 1.36 kg (2 lbs)
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