Agilent 11567A Data Sheet

User’s and Service Guide

Agilent Technologies

11857B

75 Ohm Type-N

Test Port Return Cable Set

Manufacturing Part Number: 11857-90016

Printed in USA

Print Date: September 1999

Supersedes September 1988

© Agilent Technologies, Inc. 1988, 1999

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User’s and Service Guide

HP 11857B
75Ω Type-N Test Port Return Cable Set

HP Part Number 11857-90016 Supersedes: September 1988
Printed in USA September 1999

Notice.

The information contained in this document is subject to change without notice.

Hewlett-Packard 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 purpose. Hewlett-Packard 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.

© Copyright 1988-1999 Hewlett-Packard Company

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.

• Type-N(f) center conductor protrusion: 0.207 inch maximum.

• Type-N(m) center conductor shoulder or dielectric recession: 0.208 inch minimum.

Description

The HP 11857B RF cable set consists of two type-N 75Ω cables, specified from 300 kHz to
2 GHz. This set provides shielded RF connections to extend the test ports of S-parameter test
sets such as the HP 85046B. The cables can be ordered as either phase-matched or
unmatched.

Model Description Qty HP Part Number

HP 11857B

Standard

HP 11857B
Option B24

Phase matched type-N 75Ω cables

male-male connectors

male-female connectors

Unmatched type-N 75Ω cables

male-male connectors

male-female connectors

1
1

1
1

8120-2408
8120-2409

8120-8898
8121-0002

User’s and Service Guide 11857-90016 3

Figure 1. Model HP 11857B Cables, Option B24

4 User’sand Service Guide 11857-90016

Operating Characteristics

HP 11857B

Standard

Impedance 75Ω (nominal) 75Ω (nominal)

Connectors Type-N, male-male

Type-N, male-female

Phase Match ≤ 4°

(at 2 GHz)

Return Loss ≥ 24 dB

(300 kHz to 2 GHz)

Type-N, male-male
Type-N, male-female

HP 11857B
Option B24

n/a

≥ 24 dB

(300 kHz to 2 GHz)

CAUTION Mating a 75Ω(f) connector with a 50Ω(m) connector will destroy the 75Ω(f)

connector.

Physical Characteristics

HP 11857B

Standard

Length 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)

HP 11857B
Option B24

61 cm

(24 inches)

User’s and Service Guide 11857-90016 5