Keysight N9000B CXA Specification Guide
Keysight N9000B CXA Signal Analyzer
Specification Guide
Notices
© Keysight Technologies, Inc.
2016-2020
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, Inc. as
governed by United States and
international copyright laws.
Trademark Acknowledgments
Manual Part Number
N9000-90035
Edition
Edition 4, December 2020
Only available in electronic format
Published by:
Keysight Technologies
No 116 Tianfu 4th street
Chiengdu, 610041 China
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 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 WILL 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 accordance
with the terms of such license.
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.keysight.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
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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
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extent that those terms, rights, or
licenses are explicitly required
from all providers of commercial
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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.
Safety Notices
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.
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.
Warranty
This Keysight technologies instrument product is warranted against defects in
material and workmanship for a period of one year from the date of shipment.
during the warranty period, Keysight Technologies will, at its option, either
repair or replace products that 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 shall pay shipping charges to return the product to
Buyer. However, Buyer shall pay all shipping charges, duties, and taxes for
products returned to Keysight Technologies from another country.
Where to Find the Latest Information
Documentation is updated periodically. For the latest information about this
analyzer, including firmware upgrades, application information, and product
information, see the following URL:
http://www.keysight.com/find/cxa
To receive the latest updates by email, subscribe to Keysight Email Updates:
http://www.keysight.com/find/emailupdates
Information on preventing analyzer damage can be found at:
http://www.keysight.com/find/PreventingInstrumentRepair
1. Keysight CXA Signal Analyzer
Definitions and Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Conditions Required to Meet Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Frequency and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Frequency Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Standard Frequency Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Precision Frequency Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Frequency Readout Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Frequency Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Frequency Span. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Sweep Time and Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Triggers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Gated Sweep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Number of Frequency Display Trace Points (buckets) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Resolution Bandwidth (RBW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Power Bandwidth Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Analysis Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Video Bandwidth (VBW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Amplitude Accuracy and Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Maximum Safe Input Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Display Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Marker Readout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
IF Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
IF Phase Linearity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Input Attenuation Switching Uncertainty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Absolute Amplitude Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Resolution Bandwidth Switching Uncertainty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Reference Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Display Scale Switching Uncertainty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Display Scale Fidelity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Available Detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Dynamic Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Gain Compression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1 dB Gain Compression Point (Two-tone). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Displayed Average Noise Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Spurious Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Second Harmonic Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Third Order Intermodulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Phase Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Power Suite Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Channel Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Occupied Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Adjacent Channel Power (ACP). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Power Statistics CCDF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Burst Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Spurious Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Spectrum Emission Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Contents
5
Contents
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
2. I/Q Analyzer
Specifications Affected by I/Q Analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Clipping-to-Noise Dynamic Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Data Acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
ADC Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
3. Option CR3 - Connector Rear, Second IF Output
Specifications Affected by Connector Rear, Second IF Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Other Connector Rear, Second IF Output Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Second IF Out Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
4. Option C75 - Connector Front, 75 Ohm Additional RF Input, 1.5 GHz
Specifications Affected by Connector, 75 Ohm Additional RF Input, 1.5 GHz . . . . . . . . . . . . . . . . . .64
Maximum Safe Input Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Second Harmonic Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Third Order Intermodulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
RF Input VSWR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Other Connector, 75 Ohm Additional RF Input, 1.5 GHz Specifications . . . . . . . . . . . . . . . . . . . . . .67
5. Option EMC - Precompliance EMI Features
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
RMS Average Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
6. Option B25 (25 MHz) - Analysis Bandwidth
Specifications Affected by Analysis Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
Other Analysis Bandwidth Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
IF Spurious Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
IF Frequency Response. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
IF Phase Linearity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Full Scale (ADC Clipping) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Data Acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Time Record Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
7. Option P03, P07, P13 and P26 - Preamplifiers
Specifications Affected by Preamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
Other Preamp Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Preamplifier (Option P03, P07, P13, P26). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Maximum Safe Input Level – Preamp On. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
1 dB Gain Compression Point (Two-tone) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Displayed Average Noise Level (DANL) Preamp On. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
6
8. Options T03 and T06 - Tracking Generators
General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Output Frequency Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Frequency Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Output Power Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Maximum Safe Reverse Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Output Power Sweep. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Phase Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Dynamic Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Spurious Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
RF Power-Off Residuals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Output VSWR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
9. Option ESC - External Source Control
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Frequency Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Dynamic Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Power sweep range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Measurement Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Supported External Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Contents
10. Options PFR - Precision Frequency Reference
Specifications Affected by Precision Frequency Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
11. Analog Demodulation Measurement Application
RF Carrier Frequency and Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Post-Demodulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Frequency Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Frequency Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Amplitude Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Amplitude Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Phase Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Phase Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Analog Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
FM Stereo/Radio Data System (RDS) Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
12. Phase Noise Measurement Application
General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Maximum Carrier Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Measurement Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Measurement Accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Amplitude Repeatability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Offset Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
13. Noise Figure Measurement Application
General Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Noise Figure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
7
Contents
Noise Figure Uncertainty Calculator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
14. W-CDMA Measurement Application
Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122
Channel Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Adjacent Channel Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Power Statistics CCDF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Occupied Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
Spectrum Emission Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Spurious Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126
Code Domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
QPSK EVM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Modulation Accuracy (Composite EVM). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Power Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130
In-Band Frequency Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
15. LTE/LTE-Advanced Measurement Application
Supported Air Interface Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135
Channel Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Transmit On/Off Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Adjacent Channel Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Occupied Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137
Spectrum Emission Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Spurious Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138
Modulation Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
In-Band Frequency Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Operating Band, FDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140
Operating Band, TDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
8
Keysight CXA Signal Analyzer
Specification Guide
1 Keysight CXA Signal Analyzer
This chapter contains the specifications for the core signal analyzer. The
specifications and characteristics for the measurement applications and options are
covered in the chapters that follow.
9
Keysight CXA Signal Analyzer
Definitions and Requirements
Definitions and Requirements
This book contains signal analyzer specifications and supplemental information. The distinction among
specifications, typical performance, and nominal values are described as follows.
Definitions
• Specifications describe the performance of parameters covered by the product warranty (temperature =
0 to 55°C, also referred to as "Full temperature range" or "Full range", unless otherwise noted.
• 95th percentile values indicate the breadth of the population (»2s) of performance tolerances expected
to be met in 95% of the cases with a 95% confidence, for any ambient temperature in the range of 20 to
30°C. In addition to the statistical observations of a sample of instruments, these values include the
effects of the uncertainties of external calibration references. These values are not warranted. These
values are updated occasionally if a significant change in the statistically observed behavior of
production instruments is observed.
• Typical describes additional product performance information that is not covered by the product
warranty. It is performance beyond specification that 80% of the units exhibit with a 95% confidence
level over the temperature range 20 to 30°C. Typical performance does not include measurement
uncertainty.
• Nominal values indicate expected performance, or describe product performance that is useful in the
application of the product, but is not covered by the product warranty.
Conditions Required to Meet Specifications
The following conditions must be met for the analyzer to meet its specifications.
• The analyzer is within its calibration cycle. See the General section of this chapter.
• Under auto couple control, except that Auto Sweep Time Rules = Accy.
• For signal frequencies < 10 MHz, DC coupling applied (Option 513/526 only).
• Any analyzer that has been stored at a temperature range inside the allowed storage range but outside
the allowed operating range must be stored at an ambient temperature within the allowed operating
range for at least two hours before being turned on.
• The analyzer has been turned on at least 30 minutes with Auto Align set to Normal, or, if Auto Align is
set to Off or Partial, alignments must have been run recently enough to prevent an Alert message. If the
Alert condition is changed from “Time and Temperature” to one of the disabled duration choices, the
analyzer may fail to meet specifications without informing the user. If Auto Align is set to Light,
performance is not warranted, and nominal performance will degrade to become a factor of 1.4 wider
for any specification subject to alignment, such as amplitude tolerances.
Certification
Keysight Technologies certifies that this product met its published specifications at the time of shipment
from the factory. Keysight Technologies further certifies that its calibration measurements are traceable to
the United States National Institute of Standards and Technology, to the extent allowed by the Institute’s
calibration facility, and to the calibration facilities of other International Standards Organization members.
10 Chapter 1
Keysight CXA Signal Analyzer
Frequency and Time
Frequency and Time
Description Specifications Supplemental Information
Frequency Range
Maximum Frequency
Option 503 3.0 GHz
Option 507 7.5 GHz
Option 513 13.6 GHz
Option 526 26.5 GHz
Preamp Option P03 3.0 GHz
Preamp Option P07 7.5 GHz
Preamp Option P13 13.6 GHz
Preamp Option P26 26.5 GHz
Minimum Frequency Option 503, or 507
Preamp
Off 9 kHz
On 100 kHz
Minimum Frequency Option 513, or 526
Preamp AC Coupled DC coupled
Off 10 MHz 9 kHz
On 10 MHz 100 kHz
Band
Option 513, or 526
Option 503, or 507
0 (9 kHz to 3.0 GHz) x 1
0 (9 kHz to 3.08 GHz)
1 (2.95 to 3.8 GHz) x 1
2 (3.7 to 4.55 GHz) x 1
3 (4.45 to 5.3 GHz) x 1
4 (5.2 to 6.05 GHz) x 1
5 (5.95 to 6.8 GHz) x 1
6 (6.7 to 7.5 GHz) x 1
1 (2.95 to 7.58 GHz)
2 (7.45 to 9.55 GHz) x 2
3 (9.45 to 12.6 GHz) x 2
4 (12.5 to 13.05 GHz) x 2
4 (12.95 to 13.8 GHz) x 4
5 (13.4 to 15.55 GHz) x 4
6 (15.45 to 19.35 GHz) x 4
7 (19.25 to 21.05 GHz) x 4
LO Multiple (Na) Band Overlaps
x 1
x 2
b
Chapter 1 11
Keysight CXA Signal Analyzer
Frequency and Time
Description Specifications Supplemental Information
8 (20.95 to 22.85 GHz)
x 4
9 (22.75 to 24.25 GHz) x 4
10 (24.15 to 26.55 GHz) x 4
a. N is the LO multiplication factor.
b. In the band overlap regions, take option 513/526 for example, 2.95 to 7.5 GHz, the analyzer may use either band for measure-
ments, in this example Band 0 or Band 1. The analyzer gives preference to the band with the better overall specifications, but
will choose the other band if doing so is necessary to achieve a sweep having minimum band crossings. For example, with CF
= 2.98 GHz, with a span of 40 MHz or less, the analyzer uses Band 0, because the stop frequency is 3.0 GHz or less, allowing
a span without band crossings in the preferred band. If the span is between 40 and 60 MHz, the analyzer uses Band 1,
because the start frequency is above 2.95 GHz, allowing the sweep to be done without a band crossing in Band 1, though the
stop frequency is above 3.0 GHz, preventing a Band 0 sweep without band crossing. With a span greater than 60 MHz, a
band crossing will be required: the analyzer sweeps up to 3.0 GHz in Band 0; then executes a band crossing and continues
the sweep in Band 1.
Specifications are given separately for each band in the band overlap regions. One of these specifications is for the preferred
band, and one for the alternate band. Continuing with the example from the previous paragraph (2.98 GHz), the preferred
band is band 0 (indicated as frequencies under 3.0 GHz) and the alternate band is band 1 (2.95 to 7.5 GHz). The specifications
for the preferred band are warranted. The specifications for the alternate band are not warranted in the band overlap region,
but performance is nominally the same as those warranted specifications in the rest of the band. Again, in this example, consider a signal at 2.98 GHz. If the sweep has been configured so that the signal at 2.98 GHz is measured in Band 1, the analysis
behavior is nominally as stated in the Band 1 specification line (2.95 to 7.5 GHz) but is not warranted. If warranted performance is necessary for this signal, the sweep should be reconfigured so that analysis occurs in Band 0. Another way to
express this situation in this example Band0/Band 1 crossing is this: The specifications given in the “Specifications” column
which are described as “2.95 to 7.5 GHz” represent nominal performance from 2.95 to 3.0 GHz, and warranted performance
from 3.0 to 7.5 GHz.
Description Specifications Supplemental Information
Standard Frequency Reference
Accuracy [(time since last adjustment aging
rate) + temperature stability +
a
calibration accuracy
]
Temperature Stability
20 to 30C
Full temperature range
Aging Rate
Achievable Initial Calibration
2 10
2 10
1 106/year
1.4 10
6
6
b
6
Accuracy
Settability
Residual FM
2 10
8
(10 Hz) p-p in 20 ms (nominal)
(Center Frequency = 1 GHz
10 Hz RBW, 10 Hz VBW)
a. Calibration accuracy depends on how accurately the frequency standard was adjusted to 10 MHz. If the adjustment procedure is
followed, the calibration accuracy is given by the specification “Achievable Initial Calibration Accuracy”.
b. For periods of one year or more.
12 Chapter 1
Keysight CXA Signal Analyzer
Frequency and Time
Description Specifications Supplemental Information
Precision Frequency Reference
(Option PFR)
Accuracy [(time since last adjustment
aging rate) + temperature stability +
calibration accuracy
a]b
Temperature Stability
20 to 30C
Full temperature range
Aging Rate
1.5 10
5 10
8
8
5 10
10
/day (nominal)
Total Aging
1 Year
2 Years
Settability
Warm-up and Retrace
300 s after turn on
900 s after turn on
c
Achievable Initial Calibration Accuracy
1 10
1.5 10
2 10
d
4 10
7
9
8
7
Nominal
1 107 of final frequency
8
1 10
of final frequency
Stand by power to reference oscillator Not supplied
Residual FM
(Center Frequency = 1 GHz
(0.25 Hz) p-p in 20 ms
(nominal)
10 Hz RBW, 10 Hz VBW)
a. Calibration accuracy depends on how accurately the frequency standard was adjusted to 10 MHz. If the adjustment procedure is
followed, the calibration accuracy is given by the specification “Achievable Initial Calibration Accuracy.”
b. The specification applies after the analyzer has been powered on for 15 minutes.
c. Standby mode does not apply power to the oscillator. Therefore warm-up applies every time the power is turned on. The
warm-up reference is one hour after turning the power on. Retracing also occurs every time the power is applied. The effect of
retracing is included within the “Achievable Initial Calibration Accuracy” term of the Accuracy equation.
d. The achievable calibration accuracy at the beginning of the calibration cycle includes these effects:
1) Temperature difference between the calibration environment and the use environment
2) Orientation relative to the gravitation field changing between the calibration environment and the use environment
3) Retrace effects in both the calibration environment and the use environment due to turning the instrument power off.
4) Settability
Chapter 1 13
Keysight CXA Signal Analyzer
Frequency and Time
Description Specifications Supplemental Information
Frequency Readout
Accuracy
Example for EMC
c
a. The warranted performance is only the sum of all errors under autocoupled conditions. Under non-autocoupled conditions, the
frequency readout accuracy will nominally meet the specification equation, except for conditions in which the RBW term domi-
nates, as explained in examples below. The nominal RBW contribution to frequency readout accuracy is 4 of RBW for RBWs
from 1 Hz to 3 MHz (the widest autocoupled RBW), and 30 of RBW for the (manually selected) 4, 5, 6 and 8 MHz RBWs.
Example: a 20 MHz span, with a 4 MHz RBW. The specification equation does not apply because the Span: RBW ratio is not auto-
coupled. If the equation did apply, it would allow 50 kHz of error (0.25) due to the span and 200 kHz error (5) due to the
RBW. For this non-autocoupled RBW, the RBW error is nominally 30, or 1200 kHz.
b. Horizontal resolution is due to the marker reading out one of the trace points. The points are spaced by span/(Npts - 1), where
Npts is the number of sweep points. For example, with the factory preset value of 1001 sweep points, the horizontal resolution is
span/1000. However, there is an exception: When both the detector mode is “normal” and the span > 0.25 (Npts - 1) RBW,
peaks can occur only in even-numbered points, so the effective horizontal resolution becomes doubled, or span/500 for the fac-
tory preset case. When the RBW is autocoupled and there are 1001 sweep points, that exception occurs only for spans > 750
MHz.
c. In most cases, the frequency readout accuracy of the analyzer can be exceptionally good. As an example, Keysight has character-
ized the accuracy of a span commonly used for Electro-Magnetic Compatibility (EMC) testing using a source frequency locked to
the analyzer. Ideally, this sweep would include EMC bands C and D and thus sweep from 30 to 1000 MHz. Ideally, the analysis
bandwid th would be 120 kHz at 6 dB, and the spacing of the points would be half of this (60 kHz). With a start frequency of 30
MHz and a stop frequency of 1000.2 MHz and a total of 16168 points, the spacing of points is ideal. The detector used was the
Peak detector. The accuracy of frequency readout of all the points tested in this span was with 0.0032 of the span. A perfect
analyzer with this many points would have an accuracy of 0.0031 of span. Thus, even with this large number of display points,
the errors in excess of the bucket quantization limitation were negligible.
(marker freq. freq. ref. accy. + 0.25 span + 5
a
RBW
+ 2 Hz + 0.5 horizontal resolutionb)
Single detector only
0.0032 (nominal)
Description Specifications Supplemental Information
Frequency Counter
a
See note
b
Count Accuracy (marker freq. freq. Ref. Accy. + 0.100 Hz)
Delta Count Accuracy (delta freq. freq. Ref. Accy. + 0.141 Hz)
Resolution 0.001 Hz
a. Instrument conditions: RBW = 1 kHz, gate time = auto (100 ms), S/N 50 dB, frequency = 1 GHz.
b. If the signal being measured is locked to the same frequency reference as the analyzer, the specified count accuracy is 0.100 Hz
under the test conditions of footnote a. This error is a noisiness of the result. It will increase with noisy sources, wider RBWs,
lower S/N ratios, and source frequencies > 1 GHz.
14 Chapter 1
Keysight CXA Signal Analyzer
Frequency and Time
Description Specifications Supplemental Information
Frequency Span
Range
Option 503 0 Hz, 10 Hz to 3 GHz
Option 507 0 Hz, 10 Hz to 7.5 GHz
Option 513 0 Hz, 10 Hz to 13.6 GHz
Option 526 0 Hz, 10 Hz to 26.5 GHz
Resolution 2 Hz
Span Accuracy
Swept
FFT
a. Horizontal resolution is due to the marker reading out one of the trace points. The points are spaced by span/(Npts 1), where
Npts is the number of sweep points. For example, with the factory preset value of 1001 sweep points, the horizontal resolution is
span/1000. However, there is an exception: When both the detector mode is “normal” and the span > 0.25 (Npts 1) RBW,
peaks can occur only in even-numbered points, so the effective horizontal resolution becomes doubled, or span/500 for the factory preset case. When the RBW is auto coupled and there are 1001 sweep points, that exception occurs only for spans > 750
MHz.
(0.25 span + horizontal resolutiona)
(0.10 span + horizontal resolutiona)
Description Specifications Supplemental Information
Sweep Time and Trigger
Sweep Time Range
Span = 0 Hz 1 s to 6000 s
Span 10 Hz 1 ms to 4000 s
Sweep Time Accuracy
Span 10 Hz, swept 0.01 (nominal)
Span 10 Hz, FFT 40 (nominal)
Span = 0 Hz 1 (nominal)
Sweep Trigger Free Run, Line, Video, External 1, RF
Burst, Periodic Timer
Delayed Trigger
a
Range
Span 10 Hz, swept 1 s to 500 ms
Span = 0 Hz or FFT 150 ms to +500 ms
Resolution 0.1 s
a. Delayed trigger is available with line, video, RF burst and external triggers.
Chapter 1 15
Keysight CXA Signal Analyzer
Frequency and Time
Description Specifications Supplemental Information
Triggers Add itional information on some of the triggers and
gate sources
Video
Independent of Display Scaling and Reference Level
Minimum settable level 170 dBm Useful range limited by noise
Maximum usable level
Highest allowed mixer levela + 2 dB (nominal)
Detector and Sweep Type
relationships
Sweep Type = Swept
Detector = Normal, Peak,
Sample or Negative Peak
Triggers on the signal before detection, which is
similar to the displayed signal
Detector = Average Triggers on the signal before detection, but with a
single-pole filter added to give similar smoothing to
that of the average detector
Sweep Type = FFT Triggers on the signal envelop in a band wid th wider
than the FFT width
RF Burst
Level Range
-50 to -10 dBm plus attenuation (nominal)
b
Level Accuracy ±2 dB + Absolute Amplitude Accuracy (nominal)
Bandwidth (10 dB) 18 MHz (nominal)
Frequency Limitations If the start or center frequency is too close to zero, LO
feedthrough can degrade or prevent triggering. How
close is too close depends on the bandwidth.
External Triggers
See "Inputs/Outputs" on page 47.
a. The highest allowed mixer level depends on the attenuation and IF Gain. It is nominally 10 dBm + input attenuation for Preamp
Off and IF Gain = Low.
b. Noise will limit trigger level range at high frequencies, such as above 13 GHz.
16 Chapter 1
Keysight CXA Signal Analyzer
Frequency and Time
Description Specifications Supplemental Information
Gated Sweep
Gate Methods Gated LO
Gated Video
Gated FFT
Span Range Any span
Gate Delay Range 0 to 100.0 s
Gate Delay Settability 4 digits, 100 ns
Gate Delay Jitter 33.3 ns p-p (nominal)
Gate Length Range
(Except Method = FFT)
Gated Frequency and
Amplitude Errors
Gate Sources External
100.0 ns to 5.0 s Gate length for the FFT method is fixed at
1.83/RBW, with nominally 2% tolerance.
Nominally no additional error for gated
measurements when the Gate Delay is
greater than the MIN FAST setting
Pos or neg edge triggered
Line
RF Burst
Periodic
Description Specifications Supplemental Information
Number of Frequency Display
Trace Points (buckets)
Factory preset 1,001
Range 1 to 40,001 Zero and non-zero spans
Chapter 1 17
Keysight CXA Signal Analyzer
Frequency and Time
Description Specifications Supplemental Information
Resolution Bandwid th (RBW)
Range (3.01 dB bandwidth) 1 Hz to 8 MHz
Bandwidths above 3 MHz are 4, 5, 6, and
8MHz.
Bandwidths 1 Hz to 3 MHz are spaced at 10%
spacing using the E24 series (24 per decade):
1.0, 1.1, 1.2, 1.3, 1.5, 1.6, 1.8, 2.0, 2.2, 2.4, 2.7,
3.0, 3.3, 3.6, 3.9, 4.3, 4.7, 5.1, 5.6, 6.2, 6.8, 7.5,
8.2, 9.1 in each decade.
Power Band wid th Accuracy
a
RBW Range
1 Hz to 750 kHz 1.0% (0.044 dB) (nominal)
820 kHz to 1.2 MHz 2.0% (0.088 dB) (nominal)
1.3 to 2.0 MHz 0.07 dB (nominal)
2.2 to 3 MHz 0.15 dB (nominal)
4 to 8 MHz 0.25 dB (nominal)
Accuracy (3.01 dB bandwid th)
b
RBW Range
1 Hz to 1.3 MHz 2 (nominal)
1.5 to 3.0 MHz 7 (nominal)
4 to 8 MHz 15 (nominal)
Selectivity
c
(60 dB/3 dB)
4.1:1 (nominal)
a. The noise marker, band power marker, channel power and ACP all compute their results using the power bandwidth of the RBW
used for the measurement. Power bandwid th accuracy is the power uncertainty in the results of these measurements due only to
bandwidth-related errors. (The analyzer knows this power bandwidth for each RBW with greater accuracy than the RBW width
itself, and can therefore achieve lower errors.) The warranted specifications shown apply to the Gaussian RBW filters used in
swept and zero span analysis. There are four different kinds of filters used in the spectrum analyzer: Swept Gaussian, Swept Flattop, FFT Gaussian and FFT Flattop. While the warranted performance only applies to the swept Gaussian filters, because only
they are kept under statistical process control, the other filters nominally have the same performance.
b. Resolution Bandwidth Accuracy can be observed at slower sweep times than auto-coupled conditions. Normal sweep rates
cause the shape of the RBW filter displayed on the analyzer screen to widen by nominally 6. This widening declines to 0.6
nominal when the Swp Time Rules key is set to Accuracy instead of Normal. The true bandwidth, which determines the response
to impulsive signals and noise-like signals, is not affected by the sweep rate.
c. The RBW filters are implemented digitally, and the selectivity is designed to be 4.1:1. Verifying the selectivity with RBWs above
100 kHz becomes increasing problematic due to SNR affecting the 60 dB measurement.
18 Chapter 1
Keysight CXA Signal Analyzer
Frequency and Time
Description Specification Supplemental information
Analysis Band wid th
a
Standard 10 MHz
With Option B25 25 MHz
a. Analysis bandwidth is the instantaneous bandwidth available around a center frequency over which the input signal can be
digitized for further analysis or processing in the time, frequency, or modulation domain.
Description Specifications Supplemental Information
Video Band wid th (VBW)
Range Same as Resolution Band width range plus
wide-open VBW (labeled 50 MHz)
Accuracy 6 (nominal)
in swept mode and zero span
a. For FFT processing, the selected VBW is used to determine a number of averages for FFT results. That number is chosen to give
roughly equival lay smoothing to VBW filtering in a swept measurement. For example, if VBW=0.1 RBW, four FFTs are averaged
to generate one result.
a
Chapter 1 19
Keysight CXA Signal Analyzer
Amplitude Accuracy and Range
Amplitude Accuracy and Range
Description Specifications Supplemental Information
Measurement Range
Option 513 or 526
Option 503 or 507
Preamp Off
100 kHz to 1 MHz x Displayed Average Noise Level to +20 dBm
1 MHz to 7.5 GHz x Displayed Average Noise Level to +23 dBm
100 kHz to 26.5 GHz
Preamp On
100 kHz to 7.5 GHz x Displayed Average Noise Level to +15 dBm
100 kHz to 26.5 GHz
Input Attenuation Range
Standard x 0 to 50 dB, in 10 dB steps
Standard
With Option FSA x 0 to 50 dB, in 2 dB steps
With Option FSA
x Displayed Average Noise Level to +23 dBm
x Displayed Average Noise Level to +23 dBm
x 0 to 70 dB, in 10 dB steps
x 0 to 70 dB, in 2 dB steps
Description Specifications Supplemental Information
Maximum Safe Input Level
Average Total Power
(input attenuation 20dB)
Average Total Power
(input attenuation 10dB)
Peak Pulse Power
(<10 s pulse wid th,
<1 duty cycle
input attenuation 30 dB)
AC Coupled 50 Vdc
DC Coupled 0.2 Vdc Option 513/526
+30 dBm (1 W) Option 503/507
+30 dBm (1 W) Option 513/526
+50 dBm (100 W)
20 Chapter 1
Keysight CXA Signal Analyzer
Amplitude Accuracy and Range
Description Specifications Supplemental Information
Display Range
Log Scale Ten divisions displayed;
0.1 to 1.0 dB/division in 0.1 dB steps, and
1 to 20 dB/division in 1 dB steps
Linear Scale Ten divisions
Scale units dBm, dBmV, dBV, dBmA, dBA, V, W, A
Description Specifications Supplemental Information
Marker Readout
a
Resolution
Log units resolution
Trace Averaging Off, on-screen 0.01 dB
Trace Averaging On or remote 0.001 dB
Linear units resolution 1% of signal level (nominal)
a. Reference level and off-screen performance: The reference level (RL) behavior differs from previous analyzers (except PSA) in a
way that makes the Keysight CXA Signal Analyzer more flexible. In previous analyzers, the RL controlled how the measurement
was performed as well as how it was displayed. Because the logarithmic amplifier in previous analyzers had both range and resolution limitations, this behavior was necessary for optimum measurement accuracy. The logarithmic amplifier in the CXA signal
analyzer, however, is implemented digitally such that the range and resolution greatly exceed other instrument limitations.
Because of this, the CXA signal analyzer can make measurements largely independent of the setting of the RL without compromising accuracy. Because the RL becomes a display function, not a measurement function, a marker can read out results that are
off-screen, either above or below, without any change in accuracy. The only exception to the independence of RL and the way in
which the measurement is performed is in the input attenuation setting: When the input attenuation is set to auto, the rules for
the determination of the input attenuation include dependence on the reference level. Because the input attenuation setting controls the tradeoff between large signal behaviors (third-order intermodulation and compression) and small signal effects (noise),
the measurement results can change with RL changes when the input attenuation is set to auto.
Frequency Response
Description Specifications Supplemental Information
Frequency Response Refer to the footnote for
(Maximum error relative to reference
condition (50 MHz)
Swept operation
b
Attenuation 10 dB)
Option 513 or 526
Option 503 or 507
20 to 30C Full Range 95th Percentile (2)
9 kHz to 10 MHz x ±0.6 dB ±0.65 dB ±0.45 dB
9 kHz to 10 MHz
x ±0.8 dB ±0.85 dB ±0.5 dB
10 MHz to 3 GHz x ±0.75 dB ±1.75 dB ±0.55 dB
"Band Overlaps" on page 11.
Freq Option 526 only: Modes
above 18 GHz
a
Chapter 1 21
Keysight CXA Signal Analyzer
Amplitude Accuracy and Range
Description Specifications Supplemental Information
10 MHz to 3 GHz
x ±0.65 dB ±0.85 dB ±0.4 dB
3 to 5.25 GHz x ±1.45 dB ±2.5 dB ±1.0 dB
5.25 to 7.5 GHz x ±1.65 dB ±2.60 dB ±1.2 dB
3 to 7.5 GHz
7.5 to 13.6 GHz
13.6 to 19 GHz
19 to 26.5 GHz
a. Signal frequencies between 18 and 26.5 GHz are prone to additional response errors due to modes in the Type-N connector used
with frequency Option 526. With the use of Type-N to APC 3.5 mm adapter part number 1250-1744, there are nominally six such
modes. The effect of these modes with this connector are included within these specifications.
b. For Sweep Type = FFT, add the RF flatness errors of this table to the IF Frequency Response errors. An additional error source, the
error in switching between swept and FFT sweep types, is nominally 0.01 dB and is included within the “Absolute Amplitude
Error” specifications.
x ±1.5 dB ±2.5 dB ±0.5 dB
x ±2.0 dB ±2.7 dB ±0.8 dB
x ±2.0 dB ±2.7 dB ±1.0 dB
x ±2.5 dB ±4.5 dB ±1.3 dB
Description Specifications Supplemental Information
IF Frequency Response
a
Modes above 18 GHz
b
(Demodulation and FFT response
relative to the center frequency)
Center
Freq (GHz)
Analysis
Width (MHz)
Max Error
c
(Exceptiond)
Midwidth Error
(95th Percentile)
Slope (dB/MHz)
(95th Percentile)
RMSe
(nominal)
3.0 10 0.40 dB 0.15 dB 0.10 0.03 dB
3.0, 26.5 10 0.25 dB
a. The IF frequency response includes effects due to RF circuits such as input filters, that are a function of RF frequency, in addition
to the IF pass-band effects.
b. Signal frequencies between 18 and 26.5 GHz are prone to additional response errors due to modes in the Type-N connector used
with frequency Option 526. With the use of Type-N to APC 3.5 mm adapter part number 1250-1744, there are nominally six such
modes. These modes cause nominally up to –0.35 dB amplitude change, with phase errors of nominally up to ±1.2°.
c. The maximum error at an offset (f) from the center of the FFT width is given by the expression [Midwidth Error + (f × Slope)], but
never exceeds Max Error. Usually, the span is no larger than the FFT width in which case the center of the FFT width is the center frequency of the analyzer. When the analyzer span is wider than the FFT width, the span is made up of multiple concatenated
FFT results, and thus has multiple centers of FFT widths so the f in the equation is the offset from the nearest center. These specifications include the effect of RF frequency response as well as IF frequency response at the worst case center frequency. Perfor-
mance is nominally three times better than the maximum error at most center frequencies.
d. The specification does not apply for frequencies greater than 3.0 MHz from the center in FFT Widths of 7.2 to 8 MHz.
e. The "RMS" nominal performance is the standard deviation of the response relative to the center frequency, integrated across a 10
MHz span. This performance measure was observed at a single center frequency in each harmonic mixing band, which is repre-
sentative of all center frequencies; the observation center frequency is not the worst case center frequency.
22 Chapter 1
Keysight CXA Signal Analyzer
Amplitude Accuracy and Range
Description Specification Supplemental Information
IF Phase Linearity Deviation from mean phase linearity
Modes above 18 GHz
a
Freq
(GHz)
Span
(MHz)
Peak-to-Peak
(nominal)
RMS (nominal)
0.02, 3.0 10 0.5 0.2
3.0, 7.5 10 2.7 2.4
7.5, 26.5 10 1.5 0.4
a. Signal frequencies between 18 and 26.5 GHz are prone to additional response errors due to modes in the Type-N connector used
with frequency Option 526. With the use of Type-N to APC 3.5 mm adapter part number 1250-1744, there are nominally six such
modes. These modes cause nominally up to –0.35 dB amplitude change, with phase errors of nominally up to ±1.2°.
b. The listed performance is the r.m.s. of the phase deviation relative to the mean phase deviation from a linear phase condition,
where the r.m.s. is computed over the range of offset frequencies and center frequencies shown.
Description Specifications Supplemental Information
Input Attenuation Switching Uncertainty
(Relative to 10 dB (reference setting))
Refer to the footnote for
Overlaps" on page 11
"Band
50 MHz (reference frequency) 0.32 dB 0.15 dB (typical)
Attenuation > 2 dB, preamp off
100 kHz to 3 GHz 0.30 dB (nominal)
3 to 7.5 GHz 0.50 dB (nominal)
7.5 to 13.6 GHz 0.70 dB (nominal)
b
13.6 to 26.5 GHz 0.70 dB (nominal)
Description Specifications Supplemental Information
Absolute Amplitude Accuracy
At 50 MHz
a
20 to 30C 0.40 dB 0.30 dB (95th percentile)
5 to 50C 0.60 dB
At all frequencies
a
20 to 30C (0.40 dB + frequency response)
5 to 50C (0.60 dB + frequency response)
95th Percentile Absolute Amplitude
Accuracy
b
(Wide range of signal levels,
RBWs, RLs, etc.,
Atten = 10 dB)
100 kHz to 10 MHz 0.6 dB
Chapter 1 23
Keysight CXA Signal Analyzer
Amplitude Accuracy and Range
Description Specifications Supplemental Information
Preamp On
c
(Option P03/P07/P13/P26)
a. Absolute amplitude accuracy is the total of all amplitude measurement errors, and applies over the following subset of settings
and conditions: 1 Hz RBW 1 MHz; Input signal 10 to 50 dBm; Input attenuation 10 dB; span < 5 MHz (nominal additional
error for span 5 MHz is 0.02 dB); all settings auto-coupled except Swp Time Rules = Accuracy; combinations of low signal level
and wide RBW use VBW 30 kHz to reduce noise.
This absolute amplitude accuracy specification includes the sum of the following individual specifications under the conditions
listed above: Scale Fidelity, Reference Level Accuracy, Display Scale Switching Uncertainty, Resolution Bandwidth Switching
Uncertainty, 50 MHz Amplitude Reference Accuracy, and the accuracy with which the instrument aligns its internal gains to the
50 MHz Amplitude Reference.
b. Absolute Amplitude Accuracy for a wide range of signal and measurement settings, covers the 95th percentile proportion with
95% confidence. Here are the details of what is covered and how the computation is made:
The wide range of conditions of RBW, signal level, VBW, reference level and display scale are discussed in footnote a. There are
108 quasi-random combinations used, tested at a 50 MHz signal frequency. We compute the 95th percentile proportion with
95% confidence for this set observed over a statistically significant number of instruments. Also, the frequency response relative
to the 50 MHz response is characterized by varying the signal across a large number of quasi-random verification frequencies
that are chosen to not correspond with the frequency response adjustment frequencies. We again compute the 95th percentile
proportion with 95% confidence for this set observed over a statistically significant number of instruments. We also compute the
95th percentile accuracy of tracing the calibration of the 50 MHz absolute amplitude accuracy to a national standards organiza-
tion. We also compute the 95th percentile accuracy of tracing the calibration of the relative frequency response to a national
standards organization. We take the root-sum-square of these four independent Gaussian parameters. To that rss we add the
environmental effects of temperature variations across the 20 to 30°C range.
c. Same settings as footnote a, except that the signal level at the preamp input is 40 to 80 dBm. Total power at preamp (dBm) =
total power at input (dBm) minus input attenuation (dB). This specification applies for signal frequencies above 100 kHz.
(0.39 dB + frequency response)
(nominal)
Description Specifications Supplemental Information
RF Input VSWR
Nominal
a
(Input attenuation 10 dB, 50 MHz) 1.1:1
Option 513 or 526
Option 503 or 507
Input Attenuation 10 dB
10 MHz to 3.0 GHz x < 1.5:1 (nominal)
10 MHz to 3.0 GHz
x < 1.3:1 (nominal)
3.0 to 7.5 GHz x < 2.0:1 (nominal)
3.0 to 7.5 GHz
7.5 to 26.5 GHz
a. The nominal SWR stated is given for the worst case RF frequency in three representative instruments.
x < 1.4:1 (nominal)
x < 1.9:1 (nominal)
24 Chapter 1
Nominal Instrument Input VSWR (Option 503/507)
VSWR vs. Fre quency, 3 Uni ts, 10 dB Atte nuation
1.00
1.10
1.20
1.30
1.40
1.50
0.00.51.01.52.02.53.0
GHz
VSWR
VSWR v s. Frequency, 3 Units, 10 dB Attenuation
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00
3.0 3.5 4.0 4. 5 5. 0 5.5 6.0 6.5 7.0 7.5
GHz
VSWR
Keysight CXA Signal Analyzer
Amplitude Accuracy and Range
Chapter 1 25
Keysight CXA Signal Analyzer
VSWR vs. Freque ncy, 3 Units, 10 dB Attenuation
1.0
1.2
1.4
1.6
1.8
2.0
7.5 11.5 15.5 19.5 23.5
GHz
VSWR
Amplitude Accuracy and Range
Nominal Instrument Input VSWR (Option 513/526)
26 Chapter 1
Keysight CXA Signal Analyzer
Amplitude Accuracy and Range
Description Specifications Supplemental Information
Resolution Bandwid th Switching Uncertainty Relative to reference BW of 30 kHz
1 Hz to 3 MHz RBW 0.15 dB
Manually selected wide RBWs: 4, 5, 6, 8 MHz 1.0 dB
Description Specifications Supplemental Information
Reference Level
Range
Log Units 170 to +23 dBm in 0.01 dB steps
Linear Units 707 pV to 3.16 V with 0.01 dB resolution (0.11)
Accuracy
a. Because reference level affects only the display, not the measurement, it causes no additional error in measurement results from
trace data or markers.
0 dB
a
Description Specifications Supplemental Information
Display Scale Switching Uncertainty
Switching between Linear and Log
Log Scale Switching
a. Because Log/Lin and Log Scale Switching affect only the display, not the measurement, they cause no additional error in mea-
surement results from trace data or markers.
0 dB
0 dB
a
a
Description Specifications Supplemental Information
Display Scale Fidelity
abc
Absolute Log-Linear Fidelity
(Relative to the reference condition of 25 dBm
input through the 10 dB attenuation, or 35 dBm at
the input mixer)
Input mixer level
d
Linearity
80 dBm ML 15 dBm 0.15 dB
15 dBm ML 10 dBm 0.30 dB 0.15 dB (typical)
Relative Fidelity
e
Applies for mixer leveld range from 10 to
80 dBm, preamp off, and dither on
Sum of the following terms:
high level term
Up to 0.045 dB
f
Chapter 1 27
Keysight CXA Signal Analyzer
3
320dB110
SN 3dB+20dB–
+log=
Amplitude Accuracy and Range
Description Specifications Supplemental Information
instability term Up to 0.018 dB
slope term
a. Supplemental information: The amplitude detection linearity specification applies at all levels below 10 dBm at the input mixer;
b. The scale fidelity is warranted with ADC dither set to Medium. Dither increases the noise level by nominally only 0.24 dB for the
c. Reference level and off-screen performance: The reference level (RL) behavior differs from some earlier analyzers in a way that
d. Mixer level = Input Level - Input Attenuator
e. The relative fidelity is the error in the measured difference between two signal levels. It is so small in many cases that it cannot be
f. Errors at high mixer levels will nominally be well within the range of 0.045 dB × {exp[(P1 Pref)/(8.69 dB)] exp[(P2
g. Slope error will nominally be well within the range of 0.000
however, noise will reduce the accuracy of low level measurements. The amplitude error due to noise is determined by the sig-
nal-to-noise ratio, S/N. If the S/N is large (20 dB or better), the amplitude error due to noise can be estimated from the equation
below, given for the 3-sigma (three standard deviations) level.
he errors due to S/N ratio can be further reduced by averaging results. For large S/N (20 dB or better), the 3-sigma level can be
reduced proportional to the square root of the number of averages taken.
most sensitive case (preamp Off, best DANL frequencies). With dither Off, scale fidelity for low level signals, around 60 dBm or
lower, will nominally degrade by 0.2 dB.
makes this analyzer more flexible. In other analyzers, the RL controlled how the measurement was performed as well as how it was
displayed. Because the logarithmic amplifier in these analyzers had both range and resolution limitations, this behavior was nec-
essary for optimum measurement accuracy. The logarithmic amplifier in this signal analyzer, however, is implemented digitally
such that the range and resolution greatly exceed other instrument limitations. Because of this, the analyzer can make measure-
ments largely independent of the setting of the RL without compromising accuracy. Because the RL becomes a display function,
not a measurement function, a marker can read out results that are off-screen, either above or below, without any change in accu-
racy. The only exception to the independence of RL and the way in which the measurement is performed is in the input attenuator
setting: When the input attenuator is set to auto, the rules for the determination of the input attenuation include dependence on
the reference level. Because the input attenuation setting controls the tradeoff between large signal behaviors (third-order inter-
modulation and compression) and small signal effects (noise), the measurement results can change with RL changes when the
input attenuation is set to auto.
verified without being dominated by measurement uncertainty of the verification. Because of this verification difficulty, this speci-
fication gives nominal performance, based on numbers that are as conservatively determined as those used in warranted specifi-
cations. We will consider one example of the use of the error equation to compute the nominal performance.
Example: the accuracy of the relative level of a sideband around 60 dBm, with a carrier at 5 dBm, using attenuator = 10 dB,
RBW = 3 kHz, evaluated with swept analysis. The high level term is evaluated with P1 = 15 dBm and P2 = 70 dBm at the mixer.
This gives a maximum error within 0.025 dB. The instability term is 0.018 dB. The slope term evaluates to 0.050 dB. The sum
of all these terms is 0.093 dB.
Pref)/(8.69 dB)]}. In this expression, P1 and P2 are the powers of the two signals, in decibel units, whose relative power is being
measured. Pref is 10 dBm. All these levels are referred to the mixer level.
9 × (P1 P2). P1 and P2 are defined in
From equation
g
footnote f.
T
Description Specifications Supplemental Information
Available Detectors Normal, Peak, Sample, Negative
Peak, Average
Average detector works on RMS,
Voltage and Logarithmic scales
28 Chapter 1
Keysight CXA Signal Analyzer
Dynamic Range
Dynamic Range
Gain Compression
Description Specifications Supplemental Information
1 dB Gain Compression Point
(Two-tone)
abc
Maximum power at mixer
d
50 MHz to 7.5 GHz (Option 503, 507) +2.00 dBm (nominal)
50 MHz to 7.5 GHz (Option 513, 526) +7.00 dBm (nominal)
7.5 to 13.6 GHz (Option 513, 526) +3.00 dBm (nominal)
13.6 to 26.5 GHz (Option 526) +0.00 dBm (nominal)
a. Large signals, even at frequencies not shown on the screen, can cause the analyzer to incorrectly measure on-screen signals
because of two-tone gain compression. This specification tells how large an interfering signal must be in order to cause a 1 dB
change in an on-screen signal.
b. Specified at 1 kHz RBW with 1 MHz tone spacing.
c. Reference level and off-screen performance: The reference level (RL) behavior differs from some earlier analyzers in a way that
makes this analyzer more flexible. In other analyzers, the RL controlled how the measurement was performed as well as how it
was displayed. Because the logarithmic amplifier in these analyzers had both range and resolution limitations, this behavior was
necessary for optimum measurement accuracy. The logarithmic amplifier in this signal analyzer, however, is implemented digi-
tally such that the range and resolution greatly exceed other instrument limitations. Because of this, the analyzer can make mea-
surements largely independent of the setting of the RL without compromising accuracy. Because the RL becomes a display
function, not a measurement function, a marker can read out results that are off-screen, either above or below, without any
change in accuracy. The only exception to the independence of RL and the way in which the measurement is performed is in the
input attenuation setting: When the input attenuation is set to auto, the rules for the determination of the input attenuation
include dependence on the reference level. Because the input attenuation setting controls the tradeoff between large signal
behaviors (third-order intermodulation, compression, and display scale fidelity) and small signal effects (noise), the measure-
ment results can change with RL changes when the input attenuation is set to auto.
d. Mixer power level (dBm) = input power (dBm) input attenuation (dB).
Chapter 1 29
Keysight CXA Signal Analyzer
Dynamic Range
Displayed Average Noise Level
Description Specifications Supplemental Information
a
Displayed Average Noise Level (DANL)
Option 513 or 526
Option 503 or 507
20 to 30°C Full range Typical
9 kHz to 1 MHz x –120 dBm (nominal)
9 kHz to 1 MHz
1 to 10 MHz
1 to 10 MHz
b
c
x -130 dBm -129 dBm -137 dBm
10 MHz to 1.5 GHz x -148 dBm -145 dBm -150 dBm
10 MHz to 1.5 GHz
1.5 to 2.5 GHz x -144 dBm -141 dBm -147 dBm
2.5 to 2.7 GHz x -142 dBm -139 dBm -145 dBm
2.7 to 3.0 GHz x -139 dBm -137 dBm -143 dBm
3 to 4.5 GHz x -137 dBm -136 dBm -140 dBm
4.5 to 6 GHz x -133 dBm -130 dBm -136 dBm
1.5 to 6 GHz
6 to 7.5 GHz x -128 dBm -125 dBm -131 dBm
6 to 7.5 GHz
7.5 to 13.6 GHz
13.6 to 20 GHz
20 to 24 GHz
24 to 26.5 GHz
Input terminated
Sample or Average detector
Refer to the footnote for
Overlaps" on page 11
Averaging type = Log
0 dB input attenuation
IF Gain = High
1 Hz Resolution Bandwidth
x -122 dBm
x -143 dBm -143 dBm -148 dBm
x -147 dBm -147 dBm -150 dBm
x -143 dBm -142 dBm -147 dBm
x -141 dBm -140 dBm -145 dBm
x -139 dBm -138 dBm -142 dBm
x -134 dBm -133 dBm -140 dBm
x -132 dBm -131 dBm -138 dBm
x -124 dBm -121 dBm -129 dBm
"Band
a. DANL for zero span and swept is measured in a 1 kHz RBW and normalized to the narrowest available RBW, because the
noise figure does not depend on RBW and 1 kHz measurements are faster.
b. DANL below 10 MHz is affected by phase noise around the LO feedthrough signal.
c. DANL below 10 MHz is affected by phase noise around the LO feedthrough signal. Specifications apply with the best set-
ting of the Phase Noise Optimization control, which is to choose the “Best Close-in f Noise" for frequencies below 25 kHz,
and “Best Wide Offset f Noise" for frequencies above 85 kHz.
30 Chapter 1
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