Keysight V8486A User Manual

Keysight V8486A
Power Sensor

User’s Guide

Notices

Copyright Notice

© Keysight Technologies 1999-2018
No part of this manual may be reproduced in

any form or by any means (including electronic
storage and retrieval or translation into a for­eign language) without prior agreement and
written consent from Keysight Technologies as
governed by United States and international
copyright laws.

Manual Part Number

08486-90131

Edition

Edition 6, March 1, 2018

Printed in:

Printed in Malaysia

Published by:

Keysight Technologies
Bayan Lepas Free Industrial Zone,
11900 Penang, Malaysia

Technology Licenses

The hard ware and/or software described in
this document are furnished under a license
and may be used or copied only in accordance
with the terms of such license.

Declaration of Conformity

Declarations of Conformity for this product
and for other Keysight products may be down­loaded from the Web. Go to http://www.key-

sight.com/go/conformity. You can then search

by product number to find the latest Declara­tion of Conformity.

U.S. Government Rights

The Software is “commercial computer soft­ware,” as defined by Federal Acquisition Regu­lation (“FAR”) 2.101. Pursuant to FAR 12.212
and 27.405-3 and Department of Defense FAR
Supplement (“DFARS”) 227.7202, the U.S.
government acquires commercial computer
software under the same terms by which the
software is customarily provided to the public.
Accordingly, Keysight provides the Software to
U.S. government customers under its standard
commercial license, which is embodied in its
End User License Agreement (EULA), a copy of
which can be found at http://www.key-

sight.com/find/sweula. The license set forth in

the EULA represents the exclusive authority by
which the U.S. government may use, modify,
distribute, or disclose the Software. The EULA
and the license set forth therein, does not
require or permit, among other things, that
Keysight: (1) Furnish technical information
related to commercial computer software or
commercial computer software documenta­tion that is not customarily provided to the
public; or (2) Relinquish to, or otherwise pro­vide, the government rights in excess of these
rights customarily provided to the public to
use, modify, reproduce, release, perform, dis­play, or disclose commercial computer soft­ware or commercial computer software
documentation. No additional government
requirements beyond those set forth in the
EULA shall apply, except to the extent that
those terms, rights, or licenses are explicitly
required from all providers of commercial
computer software pursuant to the FAR and
the DFARS and are set forth specifically in
writing elsewhere in the EULA. Keysight shall
be under no obligation to update, revise or
otherwise modify the Software. With respect
to any technical data as defined by FAR 2.101,
pursuant to FAR 12.211 and 27.404.2 and
DFARS 227.7102, the U.S. government
acquires no greater than Limited Rights as
defined in FAR 27.401 or DFAR 227.7103-5 (c),
as applicable in any technical data.

Warranty

THE MATERIAL CONTAINED IN THIS DOCU­MENT IS PROVIDED “AS IS,” AND IS SUBJECT
TO BEING CHANGED, WITHOUT NOTICE, IN
FUTURE EDITIONS. FURTHER, TO THE MAXI­MUM EXTENT PERMITTED BY APPLICABLE
LAW, KEYSIGHT DISCLAIMS ALL WARRAN­TIES, EITHER EXPRESS OR IMPLIED, WITH
REGARD TO THIS MANUAL AND ANY INFOR­MATION CONTAINED HEREIN, INCLUDING
BUT NOT LIMITED TO THE IMPLIED WARRAN­TIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. KEYSIGHT
SHALL NOT BE LIABLE FOR ERRORS OR FOR
INCIDENTAL OR CONSEQUENTIAL DAMAGES
IN CONNECTION WITH THE FURNISHING,
USE, OR PERFORMANCE OF THIS DOCU­MENT OR OF ANY INFORMATION CONTAINED
HEREIN. SHOULD KEYSIGHT AND THE USER
HAVE A SEPARATE WRITTEN AGREEMENT
WITH WARRANTY TERMS COVERING THE
MATERIAL IN THIS DOCUMENT THAT CON­FLICT WITH THESE TERMS, THE WARRANTY
TERMS IN THE SEPARATE AGREEMENT
SHALL CONTROL.

Safety Information

CAUTION

A CAUTION notice denotes a hazard. It calls
attention to an operating procedure, practice,
or the like that, if not correctly performed or
adhered to, could result in damage to the
product or loss of important data. Do not pro­ceed beyond a CAUTION notice until the indi­cated conditions are fully understood and met.

WARNING

A WARNING notice denotes a hazard. It calls
attention to an operating procedure, practice,
or the like that, if not correctly performed or
adhered to, could result in personal injury or
death. Do not proceed beyond a WARNING
notice until the indicated conditions are fully
understood and met.

2 Keysight V8486A User’s Guide

Certification

Warranty

Keysight Technologies certifies that this product met its published specifications at the time of
shipment. Keysight further certifies that its calibration measurements are traceable to the United
States National Institute of Standard and Technology (formerly National Bureau of Standards), to
the extent allowed by that organization’s calibration facility, and to the calibration facilities of other
International Standards Organization members.

This Keysight Technologies instrument product is warranted against defects in material and
workmanship for a period of 3 years from date of shipment. During the warranty period, Keysight
Technologies will at its option, either repair or replace products which prove to be defective. For
warranty service or repair, this product must be returned to a service facility designated by
Keysight Technologies. Buyer shall prepay shipping charges to Keysight Technologies and Keysight
Technologies shall pay shipping charges, duties, and taxes for products returned to Keysight
Technologies from another country. Keysight Technologies warrants that its software and firmware
designated by Keysight Technologies for use with an instrument will execute its programming
instructions when properly installed on that instrument. Keysight Technologies does not warrant
that the operation of the instrument, or firmware will be uninterrupted or error free.

Limitation of Warranty

The foregoing warranty shall not apply to defects resulting from improper or inadequate
maintenance by Buyer, Buyer-supplied software or interfacing, unauthorized modification or
misuse, operation outside of the environmental specifications for the product, or improper site
preparation or maintenance. NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. KEYSIGHT
TECHNOLOGIES SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE.

Keysight V8486A User’s Guide

3

Exclusive Remedies

THE REMEDIES PROVIDED HEREIN ARE BUYER’S SOLE AND EXCLUSIVE REMEDIES. KEYSIGHT
TECHNOLOGIES SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY OTHER LEGAL
THEORY.

Safety Considerations

Read the information below before using this instrument.

The following general safety precautions must be observed during all phases of operation, service,
and repair of this instrument. Failure to comply with these precautions or with specific warnings
elsewhere in this manual violates safety standards for design, manufacture, and intended use of
the instrument. Keysight Technologies assumes no liability for the customer’s failure to comply
with these requirements.

4 Keysight V8486A User’s Guide

Environmental Conditions

The V8486A is designed for indoor use and in an area with low condensation. The table below
shows the general environmental requirements for this instrument.

Environmental condition Requirement

Temperature

Humidity

Altitude

Operating condition
– 0 °C to 55 °C
Storage condition
– –40 °C to 70 °C

Operating condition
– Up to 95%
Storage condition
– Up to 95% RH at 40°C (non-condensing)

Operating condition
– Up to 4550 meters
Storage condition
– Up to 7,600 meters

Keysight V8486A User’s Guide 5

Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC

This instrument complies with the WEEE Directive (2002/96/EC) marking requirement. This affixed
product label indicates that you must not discard this electrical or electronic product in domestic
household waste.

Product category:

With reference to the equipment types in the WEEE directive Annex 1, this instrument is classified
as a “Monitoring and Control Instrument” product.

The affixed product label is as shown below.

Do not dispose in domestic household waste.

To return this unwanted instrument, contact your nearest Keysight Service Center, or visit http://

about.keysight.com/en/companyinfo/environment/takeback.shtml for more information.

Sales and Technical Support

To contact Keysight for sales and technical support, refer to the support links on the following
Keysight websites:

– www.keysight.com/find/waveguidepowersensors

(product-specific information and support, software and
documentation updates)

– www.keysight.com/find/assist

(worldwide contact information for repair and service)

6 Keysight V8486A User’s Guide

Table of Contents

Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Limitation of Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Exclusive Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC . . . . . . . . . . 6

Product category: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Sales and Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1Introduction

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Recommended calibration interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Initial inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Interconnections and calibration . .

age and Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Stor

Original packaging . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2 General Operation

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Operating precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Power meter calibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Power measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Modulation effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Linearity correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3 Specifications and Characteristics

Specifications and Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Calibration Factor (C

4Service

Performance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Zero set performance verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Power linearity per

Replaceable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Repair and adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

formance verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Keysight V8486A User’s Guide 7

List of Figures

List of Tables

Figure 1-1
Figure 2-1
Figure 2-2
Figure 4-1
Figure 4-2

Table 2-1 Cal factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Table 3-1
Table 4-1

Keysight V8486A power sensor with accessories and hardware
Precision V-band interface on the front of the power sensor . .

Typical influence of temperature on sensitivity . . . . . . . . . . . . . . . . .19

Zero set performance verification equipment setup . . . . . . . . . . . . . . 26

Power linearity performance verification equipment setup . . . . . . . . 28

Calibration factor uncertainty at 1 mW (0 dBm) . . . . . . . . . . . . . . . . . 23

Replaceable parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

. . . . 10

. . . . . 17

8 Keysight V8486A User’s Guide

Keysight V8486A Power Sensor
User’s Guide

1 Introduction

General Information 10
Installation 12
Storage and Shipment 13

This chapter provides an overview of the V8486A power sensor and its general information.

9

1Introduction

General Information

This User’s guide contains information about initial inspection and operation of the Keysight
V8486A power sensor.

Keysight V8486A
power sensor

Flange screws
(1390-0671)

Figure 1-1 Keysight V8486A power sensor with accessories and hardware

Warranty

The power sensor is warranted and certified as indicated on page 3 of this manual. Do not open
the power sensor. Any attempt to disassemble the power sensor will void warranty.

Description

The Keysight V8486A is a diode-based power sensor. It measures power levels in a range from –30
dBm to +20 dBm. (Specifications for the power sensor are in Table 3-1 .) The Keysight V8486A
measures at frequencies from 50 GHz to 75 GHz.

The power is determined from the ac voltage developed across the waveguide termination from the
microwave source. The diodes convert this ac voltage to dc. The dc voltage produced is
proportional to the square of the ac voltage. The dc voltage thus generated is a very low-level
voltage and requires amplification before it can be transferred via the sensor cable to the power
meter.

Hex ball driver
(8710-1539)

10

The amplification is provided by an input amplifier assembly which consists of a chopper (sampling
gate) and an input amplifier. The dc voltage is routed to the chopper circuit which converts the

Keysight V8486A User’s Guide