Keysight Technologies N9340B User manual

Keysight N9340B
Handheld Spectrum Analyzer
User's Guide
Notice: This document contains references to
Agilent. Please note that Agilent’s Test and
Measurement business has become
Keysight Technologies.
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Melrose, MA 02176
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Notices
© Keysight Technologies, Inc.
2008-2015
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
N9340-90008
Edition
Edition 3, December 2015
Printed in China
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) 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.
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.

1 Overview
Introduction 2
Front Panel Overview 5
Display Annotations 6
Top Panel Overview 7
Instrument Markings 8
2 Getting Started
Checking Shipment and Order List 10
Power Requirements 11
AC Power Cords 12
Safety Considerations 13
Working with Batteries 16
Powering on the Analyzer for the First Time 18
Preparation for Use 19
Making a Basic Measurement 21
3System and File
System Setting 24
Power On and Preset Settings 24
Factory Default Settings 25
Visual and Audio Adjustment 26
General system settings 26
Switch Timer 27
IP configuration 27
Upgrading Firmware 28
Ext Input 28
Adding an Option 29
Show System 30
Show Error 30
Perform a Time Base Calibration 30
Low Frequency Channel 31
File 32
Contents

4 Making Measurements
Measuring Multiple Signals 38
Measuring a Low-Level Signal 43
Improving Frequency Resolution and Accuracy 48
Making Distortion Measurements 49
Making a Stimulus Response Transmission Measurement 55
Measuring Stop Band Attenuation of a Low-pass Filter 57
Making a Reflection Calibration Measurement 59
Measuring Return Loss Using the Reflection Calibration
Routine 62
Making an Average Power Measurement 63
Spectrogram 68
Demodulating an FM Signal 71
Analysis the Demodulated Signals 73
ASK/FSK Demodulation Analysis 76
Monitoring the ADSL Signal with Option XDM 79
5Key Reference
Amplitude 82
BW/SWP 86
Enter 92
ESC/CLR 92
Frequency 93
Marker 95
MEAS 100
MODE 112
SPAN 128
TRACE 132
LIMIT 137

6 Error Messages
Overview 140
Error Message List 141
7 Troubleshooting
Check the basics 146
Warranty and Service Options 147
Contact Keysight Technologies 148
8 Menu Map

Documentation Conventions:
1. A pair of curly brackets { } indicates a softkey, for example
{Start} refers to the Start softkey.
2. A pair of square brackets [ ] indicates a hardkey, 
for example, [ENTER] refers to the ENTER hardkey.
3. “Analyzer” refers to Keysight N9340B handheld spectrum
analyzer in the following chapters.
4. “DUT” refers to a device under test.

1
Overview
1Overview

Overview
Introduction
2
Introduction
The Keysight N9340B is a handheld spectrum analyzer
with a frequency range of 100 kHz to 3 GHz, tunable to
9 kHz. It has several different measurement modes. Each
mode offers a set of automatic measurements that
pre-configure the analyzer settings for ease of use. It
provides ultimate measurement flexibility in a package
that is ruggedized for field environments and convenient
for mobile applications.
Functionality and Features
The Keysight N9340B spectrum analyzer provides you
with a comprehensive functionality set, and
measurement convenience, including:
• Power Measurement
Provides power measurement functionality on OBW
(Occupied Bandwidth), channel power, ACPR (Adjacent
Channel Power Ratio).
•Spectrogram
Provides the capability to analyze the stability of a
signal over time. With option INM, the N9340B can
monitor the signal capturing performance or intermit-
tent events unatteded over extended periods of time.
•Spectrum Emission Mask
Provides a Pass/Fail testing capability with a mask for
out-of-channel emissions measurement.
• High Accuracy Power Measurement
The N9340B supports the Keysight U2000 series
power sensors for high accuracy power measurement
as a power meter.
• IBOC Measurement (Option IBC)
Provides the in-band-on-channel measurement
capability through a dedicated measurement person-
ality and selected hardware improvement.

Overview
Introduction
3
•xDSL Measurement (Option XDM)
Supports measurements on ADSL, ADSL2+ and VDSL
networks.
• Demodulation Analysis Function
provides AM/FM and ASK/FSK demodulation analysis
function. (AM/FM: Option-AMA ASK/FSK:
Option-DMA)
• Tracking Generator (Option TG3)
Provides an RF source for scalar network analysis.
• High-sensitivity measurement (Option PA3)
Includes a 3 GHz pre-amplifier, enabling highly sensi-
tivity measurements, useful in the analysis of
low-level signals.

Overview
Introduction
4
Optimized Usability
The Keysight N9340B handheld spectrum analyzer
provides enhanced usability:
• The 6.5-inch TFT colorful LCD screen ( pixels)
enables you to read the scans easily and clearly both
indoors and outdoors.
• Arc-shaped handle and rugged rubber casing ensure
a comfortable and firm hold and ruggedness.
• SCPI remote control via USB and LAN port.
• The PC software in the N9340B Helpkit CD is
convenient for your further editing and data analysis.
• 4-hour-time battery provides continuous work time in
the field test.
• The light sensor adjusts the display brightness
according to the environment to save power.
• The headphone jack on the top panel is for the audio
signal analysis and monitor.
• Back-lit keys makes you find the right keys in
darkness easily.
640 480

Overview
Front Panel Overview
5
Front Panel Overview
N9340B
HANDHELDSPECTRUM ANALYZER
100kH z - 3.0 GHz
SYS MODE M EAS TRACE BW/
SWP AM PTD SPAN FREQ
ENT ER
M ARKER ESC/ CL R
1ABC 2DEF 3GHI
4JKL 5MNO 6PQR
7STU 8VWX 9YZ_
0SAVE LIM IT
PR ESET
F1
F2
F3
F4
F5
F6
F7
13
12 3 4
5
6
7
8
9
10
11
12
Caption Function
1 Power Switch Toggles the analyzer between on and off
2 Function keys Includes hardkeys: SYS, FREQ, SPAN, AMPTD,
BW/SWP, TRACE, MEAS, and MODE
3 Preset Returns the analyzer to a known state, also turns
on/off power save feature (press for 1 sec.)
4 Enter Confirms a parameter selection or configuration
5 MARKER Activates the marker function
6 ESC/CLR Exits and closes the dialog box or clears the
character input
7 LIMIT Sets limit lines for quick Pass/Fail judgement
8 Save Quick saves the current screen/trace
9 Arrow keys Increases or decreases a parameter step by step
10 Knob Selects an mode or edits a numerical parameter
11 Softkeys Indicates current menu functions on the LCD
12 Speaker Actives in demodulation mode
13 Screen Displays measured traces and status

Overview
Front Panel Overview
6
Display Annotations
1
2
3
4
5
6
78910
12
11
14 13
15:44:03 03,10,08
Description Associated Function Key
1 Time and Date [SYS] > {Setting} > {General}
2 Reference Level [AMPTD]
3AmplitudeScale [AMPTD]
4 Detector Mode [TRACE] > {More} > {Detector}
5 Center Frequency [FREQ] > {Center Freq}
6 Resolution Bandwidth [BW/SWP] > {RBW}
7 Display Status Line Displays status and error messages.
8 Video Bandwidth [BW/SWP] > {VBW}
9 Frequency Span [SPAN]
10 Sweep Time [BW/SWP] > {Sweep Time}
11 Key Menu See key label description in the key
reference for more information.
12 Key Menu Title Refers to the current activated function
13 Marker Amplitude [Marker]
14 Marker Frequency [Marker]

Overview
Top Panel Overview
7
Top Panel Overview
PC
12-18 VDC
55W MAX
50VDC M AX
33dBm (2W) M AX
RF IN PU T 50 RF OU T 50
EXT TRIG IN/
EXT REF IN
Ext . Pow e r
Charging
12
9
3457
8
10
6
Caption Function
1 External DC power 
connector Provides input for the DC power source via an AC-DC adapter, or Automotive type DC adapter.
2 LED indicator (Charging) Lights (On) when the battery is charging
3 LED indicator Lights (On) when external DC power is connected to
the tester
4 USB interface (Device) Connects to a PC
5 USB interface (Host) Connects to a USB memory stick or disk
6 Headphone Connects to a headphone
7 LAN Interface Connects to a PC for SCPI remote control
8 RF OUT Connector The output for the built-in tracking generator.
Enabled with Option TG3.
9 EXT TRIG IN/REF IN 
(BNC, Female) Connects to an external TTL signal or a 10 MHz reference signal. The TTL signal is used to 
trigger the analyzer’s internal sweep
10 RF IN Connector (50 W) Accepts an external input with a frequency range
from 100 kHz to 3 GHz, tunable to 9 kHz.

Overview
Instrument Markings
8
Instrument Markings
The CE mark shows that the product complies with all
relevant European Legal Directives.
The CSA mark is a registered trademark of the Canadian
Standards Association.
All Level 1, 2 or 3 electrical equipment offered for sale in
Australia and New Zealand by Responsible Suppliers must be
marked with the Regulatory Compliance Mark.
This symbol is an Industrial Scientific and Medical Group 1
Class A product (CISPR 11, Clause 4)
The ISM device complies with Canadian Interference-Causing
Equipment Standard-001.
Cet appareil ISM est conforme à la norme NMB-001 du
Canada.
The instruction manual symbol: indicates that the user must
refer to specific instructions in the manual.
The standby symbol is used to mark a position of the
instrument power switch.
Indicates the time period during which no hazardous or toxic
substance elements are expected to leak or deteriorate
during normal use. Forty years is the expected useful life of
the product.
Korea Certification indicates this equipment is Class A
suitable for professional use and is for use in electromagnetic
environments outside of the home.
The symbol indicates this product complies with the WEEE
Directive (2002/96/EC) marking requirements and you must
not discard this equipment in domestic household waste.
Do not dispose in domestic household waste. To return
unwanted products, contact your local Keysight office.
ISM1-A
ICES/NMB-001

9
Getting Started
2Getting Started
Information on checking the analyzer when received,
preparation for use, basic instrument use, familiarity
with controls, defining preset conditions, updating
firmware, and contacting Keysight Technologies.

Getting Started
Checking Shipment and Order List
10
Checking Shipment and Order List
Check the shipment and order list when you receive the
shipment.
• Inspect the shipping container for damages.
Signs of damage may include a dented or torn
shipping container or cushioning material that
indicate signs of unusual stress or compacting.
• Carefully remove the contents from the shipping
container, and verify if the standard accessories and
your ordered options are included in the shipment.

Getting Started
Power Requirements
11
Power Requirements
The AC power supplied must meet the following
requirements:
The AC/DC power supply charger adapter supplied with
the analyzer is equipped with a three-wire power cord, in
accordance with international safety standards. This
power cord grounds the analyzer cabinet when it is
connected to an appropriate power line outlet. The
power cord appropriate to the original shipping location
is included with the analyzer.
Various AC power cables are available from Keysight that
are unique to specific geographic areas. You can order
additional AC power cords are correct for use in different
areas. The AC Power Cords table provides a lists of the
available AC power cords, the plug configurations, and
identifies the geographic area in which each cable is
typically used.
The detachable power cord is the product disconnecting
device. It disconnects the main AC circuits from the DC
supply before other parts of the product. The front-panel
switch is only a standby switch and do not disconnect
instrument from AC LINE power.
Voltage: 100 VAC to 240
VAC
Frequency: 50/60 Hz
Power: Maximum 80 W

Plug Type Cable Part
Number Plug a
Description
For use in
Country & Region
250V
8121-1703 BS 1363/A Option 900
United Kingdom, Hong
Kong, Singapore, Malaysia
8120-0696 AS 3112:2000 Option 901
Australia, New Zealand
250V
8120-1692 IEC 83 C4 Option 902
Continental Europe, Korea,
Indonesia, Italy, Russia
125V
8120-1521 CNS 10917-2
/NEMA 5-15P
Option 903
Unite States, Canada,
Taiwan, Mexico
250V
8120-2296 SEV 1011 Option 906
Switzerland
230V
8120-4600 SABS 164-1 Option 917
South Africa, India
8120-4754 JIS C8303 Option 918
Japan
250V
8120-5181 SI 32 Option 919
Israel
8120-8377 GB 1002 Option 922
China
Getting Started
AC Power Cords
12
AC Power Cords
250V 1
250V
125V

Getting Started
Safety Considerations
13
Safety Considerations
Keysight has designed and tested the N9340B handheld
spectrum analyzer for Measurement, Control and
Laboratory Use in accordance with Safety Requirements
IEC 61010-1. The tester is supplied in a safe condition.
The N9340B is also designed for use in Installation
Category II and Pollution Degree 2 per IEC 61010-1.
Read the following safety notices carefully before you
start to use a N9340B handheld spectrum analyzer to
ensure safe operation and to maintain the product in a
safe condition.
WARNING
Personal injury may result if the analyzer’s cover is removed.
There are no operator-serviceable parts inside. Always
contact Keysight qualified personnel for service. Disconnect
the product from all voltage sources while it is being
opened.
WARNING
This product is a Safety Class I analyzer. The main plug should
be inserted in a power socket outlet only if provided with a
protective earth contact. Any interruption of the protective
conductor inside or outside of the product is likely to make the
product dangerous. Intentional interruption is prohibited.
WARNING
Electrical shock may result when cleaning the analyzer with
the power supply connected. Do not attempt to clean
internally. Use a dry soft cloth to clean the outside case only.
WARNING
Always use the three-pin AC power cord supplied with this
product. Failure to ensure adequate earth grounding by not
using this cord may cause personal injury and product
damage.
WARNING
Danger of explosion if the battery is incorrectly replaced.
Replace only with the same type battery recommended. Do
NOT dispose of batteries in a fire.
Do NOT place batteries in the trash. Batteries must be
recycled or disposed of properly.

Getting Started
Safety Considerations
14
CAU-CAUTION
Recharge the battery only in the analyzer. If left unused, a fully
charged battery will discharge itself over time.
Temperature extremes will affect the ability of the battery to
charge. Allow the battery to cool down or warm up as
necessary before use or charging.
Storing a battery in extreme hot or cold temperatures will
reduce the capacity and lifetime of a battery. Battery storage
is recommended at a temperature of less than 25oC.
Never use a damaged or worn-out adapter or battery.
Charging the batteries internally, even while the analyzer is
powered off, the analyzer may keep warm. To avoid
overheating, always disconnect the analyzer from the AC
adapter before storing the analyzer into the soft carrying case.
CAU-CAUTION
Connect the automotive adapter to the power output
connector for IT equipment, when charging the battery on
your automotive.
CAU-CAUTION
The VxWorks operating system requires full conformity to USB
1.1 or USB 2.0 standards from a USB disk. Not all the USB
disk are built that way. If you have problems connecting a
particular USB disk, please reboot the analyzer before
inserting the next USB stick.