Agilent Technologies N9340A User Manual
Agilent N9340A
Handheld
Spectrum Analyzer
User’s Guide
Agilent Technologies
Notices
© Agilent Technologies, Inc. 2006
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 Agilent Technologies, Inc. as
governed by United States and
international copyright laws.
Manual Part Number
N9340-90001
Edition
First edition, December 2006
Printed in China
Agilent Technologies, Inc.
Qianfeng Hi-Tech Industry Park
Chengdu Hi-Tech Industrial Develo pment
Zone (West District) Chengdu 611731,
P.R .C hin a
Software Revision
This guide is valid for A.01.00 revisions of
the Agilent N9340A Handheld Spectrum
Analyzer software.
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.
WARNI NG
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
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, Agilent
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. Agilent 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 Agilent 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 ag reement sha ll 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.
Restricted Rights Legend
If software is for use in the performance of
a U.S. Government prime contract or
subcontract, Software is delivered and
licensed as “Commercial computer
software” as defined in DFAR
252.227-7014 (June 1995), or as a
“commercial item” as defined in FAR
2.101(a) or as “Restricted computer
software” as defined in FAR 52.227-19
(June 1987) or any equivalent agency
regulation or contract clause. Use,
duplication or disclosure of Software is
subject to Agilent Technologies’ standard
commercial license terms, and non-DOD
Departments and Agencies of the U.S.
Government will receive no greater than
Restricted Rights as defined in FAR
52.227-19(c)(1-2) (June 1987). U.S.
Government users will receive no greater
than Limited Rights as defined in FAR
52.227-14 (June 1987) or DFAR
252.227-7015 (b)(2) (November 1995), as
applicable in any technical data.
1 N9340A Overview
Introduction 8
Functionality 8
Enhanced Usability 9
Front Panel Overview 10
Top P an e l O v er v ie w 11
Display Annotations 12
Working with Batteries 13
Installing a Battery 13
Viewing Battery Status 13
Charging a Battery 14
2Getting Started
Checking Shipment and Order List 16
Power Requirements 17
AC Power Cords 18
Safety Considerations 19
Electrical Requirements 21
Electrostatic Discharge (ESD) Precautions 21
Instrument Markings 22
Power on the Analyzer for the First Time 23
Power on your N9340A 23
Preparation for Use 24
Setting up your N9340A 24
Testing key stroke and screen pixel 24
Checking Instrument Information 25
Making a Basic Measurement 26
Viewing a Signal 27
Figure 1. View a signal (1 GHz, 0 dBm) 27
Contact Agilent Technologies 30
3 System Setting
Visual and Audio Adjustment 32
Quick Display Adjustment 32
Manual Display Adjustment 32
1
Setting Key Beep 32
System Setting 33
General system settings 33
Ext Input 34
File 36
Saving a file 36
Deleting a file 37
Loading a file 37
Show System 38
Show Error 39
Perform a Time Base Calibration 40
Preset 41
Factory Default Settings 42
4Making Measurements
Measuring Multiple Signals 44
Comparing Signals on the Same Screen 44
Figure 2. Delta pair marker with signals on the same screen 45
Figure 3. Setup for obtaining two signals 46
Measuring a Low-Level Signal 49
Reducing Input Attenuation 49
Figure 4. A signal closer to the noise level (Atten:10 dB) 49
Figure 5. A signal closer to the noise level (Atten:20 dB) 50
Figure 6. A signal closer to the noise level (Atten: 0 dB) 50
Figure 7. Decreasing Resolution Bandwidth 51
Figure 8. Using the Average Detector 52
Figure 9. Trace Averaging 53
Improving Frequency Resolution and Accuracy 54
Figure 10. Using Frequency Counter 54
Making Distortion Measurements 55
Identifying Analyzer Generated Distortion 55
Figure 11. Harmonic Distortion 55
Figure 12. Identifying Analyzer Distortion (O dB atten) 57
Figure 13. Identifying Analyzer Distortion (10 dB atten) 57
Third-Order Intermodulation Distortion 58
Measuring Phase Noise 61
Figure 14. Measuring Phase Noise (1) 62
2
Figure 15. Measuring Phase Noise (2) 62
One Button Measurement 63
Measuring OBW 63
5Key Reference
Amplitude 68
Ref level 68
Attenuation 68
Preamp 69
Scale/DIV 69
Scale Type 69
Ref Offset 70
Y Axis Units 70
BW/SWP 71
RBW 71
VBW 72
VBW/RBW 72
Avg Type 72
Sweep Time 74
Sweep 75
Enter 77
ESC/CLR 78
Frequency 79
Center Frequency 79
Start Frequency 79
Stop Frequency 79
CF Step 80
Marker 81
Marker 81
Normal 81
Delta 82
Off 82
Mode 84
Marker Trace 85
All Off 85
Meas 86
Span 87
Span 87
3
Full 87
Zero 87
Last Span 87
TRACE 88
Trace 88
Clear Write 88
Max Hold 88
Minimum Hold 89
View 89
Blank 89
Detector 89
Average 91
Save Trace 92
Save As 92
Recall Trace 92
Limit 93
Limit Line 93
Limit Pattern 93
Set Pattern 93
Limit Type 93
Beep 94
Save Pattern 94
Recall Pattern 94
6 SCPI Command Reference
SCPI Language Basics 96
Basic Knowledge Requirement 97
Command Categories 97
Command Syntax 97
Standard Notations 98
Common Commands 100
Clear Status 100
Identification Query 100
Reset 100
CALCulate Subsystem 101
CALCulate:LLINe Subsection 101
DEMOdulation Subsystem 111
AM Demodulation 111
4
FM Demodulation 111
DISPlay Subsystem 112
Turn the Entire Display On/Off 112
Trace Y-Axis Scaling 112
Trace Y-Axis Reference Level Offset 113
Screen Color Style 114
Display Mode 114
Brightness 115
INITiate Subsystem 116
Continuous or Single Measurements 116
Take New Data Acquisitions 117
INSTrument Subsystem 118
Select One button measurement 118
MEASure Subsystem 119
OBW Subsection 119
ACPR Subsection 119
SENSe Subsystem 124
[:SENSe]:AVERage Subsection 124
[:SENSe]:FREQuency Subsection 129
[:SENSe]:SWEep Subsection 134
SYSTem Subsystem 135
Ext Input 135
Date Query 135
Time Query 135
Error Information Query 135
TRACe Subsystem 136
TRIGer Subsystem 137
External Trigger Slope 137
Trigger Source 137
5
Video Trigger Level Amplitude 138
UNIT Subsystem 139
7 Error Messages
Error Message List 142
8Menu Map
AMPTD 148
BW/SWP 149
FREQ 150
MARKER 151
MEAS 152
SPAN 153
SYS 154
TRACE 155
Limit 156
6
Agilent N9340A
Handheld Spectrum Analyzer
User’s Guide
1
N9340A Overview
Agilent Technologies
7
1 N9340A Overview
Introduction
An Agilent N9340A is a handheld spectrum
analyzer with a frequency ranges from 100 kHz to
3 GHz. The analyzer provides ultimate
measurement flexibility in a package that is
ruggedized for field environments and convenient
for mobile applications.
Functionality
The Agilent imbued N9340A provides you a
comprehensive functionality set, including:
1 Pass/Fail judgement
Sets limit lines on the display for a quick
Pass/Fail judgement.
2 Four- trace det ection display
Displays as many as four independent traces
simultaneously, being detected in any of the
following modes: POS, NEG, Sample or Normal.
3 Marker frequency readout
Provides a resolution low to 1 Hz with a built- in
frequency counter.
8 N9340A User’s Guide
N9340A Overview 1
4 Power Suite
Provides one-button measurement functionality
on OBW
ACPR
(Spectrum Emission Mask).
(Occupied Bandwidth), channel power,
(Adjacent Channel Power Ratio) and SEM
5 High sensitive measurement
Includes a 3 GHz pre-amplifier (Option
N9340A- PA3), enabling highly sensitive
measurement which helps in analysis of low level
signals.
Enhanced Usability
An Agilent N9340A handheld spectrum analyzer
also provides you enhanced usabilities:
• 7.2 inch transflective display (
enables to read the screen easily and clearly
under high light level.
• Arc-shaped handle and rugged rubber casing
ensure a comfortable and firm hold.
• One-button measurement function provides an
easy and fast access to the power measurement.
• Convenient firmware updating via USB interface.
• Continuously pressing [Preset] hardkey turns off
the screen. Press any key on the front panel to
activate the screen.
640 480×
pixels)
N9340A User’s Guide 9
1 N9340A Overview
Front Panel Overview
14
N9340A
HANDHELD SP ECTRU M AN ALYZER
SYS MO D E MEASTRACE
100 kH z - 3.0 GHz
BW/
SW P
12
13
11
2DEF 3GHI1ABC
6
5MNO4JKL
PQR
VW X7STU9YZ_
8
LIMIT
0 SAVE
MARK ER
ESC/CLR
PRESET
ENTER
FREQ SPANAM P T D
10
9
8
7
6
1 2 3
4 5
Caption Function
1 Power Switch Toggles the analyzer between on and off
2 SYS Brings up a submenu for system setups
3 Function keys Includes hardkeys: F REQ, SPAN, AMPTD, BW/SWP, TRACE,
4 Preset Returns the analyzer to a known state
5 Enter Confirms a selection or configuration
6 MARKER Activates marker function
7 ESC/CLR Escapes the dialog box or clears the character input
8 Save Saves the current traces when numeric keypad is restrained
9 LIMIT Sets limit lines for quick Pass/Fail judgement
10 Arrow keys Increases or decreases a parameter step by step
11 Knob Selects an option item or edits a numerical parameter
12 Softkeys Indicates current menu functions
13 Speaker Speaks when in demodulation mode
14 Screen Displays measured traces and status
MEAS, and MODE
10 N9340A User’s Guide
Top Panel Overview
9
50 VDC MAX
33
dBm (2 W) MAX
RF INPUT 50 RF OU T 50
12-18 VDC
12-18
VDC
80 W MAX
55W MAX
1
2
1. DC Connector
Provides input for the DC power source via an
AC-DC adapter. Make sure that the line- power
source outlet has a protective ground contact.
2. Charging indicator
Lights when the battery is charging.
3. External power indicator
Lights when an external DC power is input to
the analyzer via the AD-DC adapter.
4. USB interface (for PC connection)
Provides a connection between the analyzer and
a PC for data transfer of further process.
5. USB interface
Provides an connection between the analyzer
and a USB memory disk.
6. LAN Interface (For future expansion)
7. RF OUT Connector (For future expansion)
8. 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.
9. RF IN Connector (Type N, Female)
Accepts an external input with a frequency
ranges from 100 kHz to 3 GHz.
Ext. Power
Charging
N9340A Overview 1
8
EXT TRIG IN/
EXT REF IN
PC
4
3
7
5 6
PC
N9340A User’s Guide 11
1 N9340A Overview
Display Annotations
1
2
13
14
12
3
4
5
6
8
7
9
10
11
Description Associated Function Key
1Time and Date [SYS] > {Set ting} > {General}
2 Reference Level [AMPTD]
3 Amplitude Scale [AMPTD]
4Detector Mode [TRACE] > {More (1 of 2)} > {Detector}
5 Center Frequency [FREQ] > {Center Freq}
6 Resolution Bandwidth [BW/SWP] > {RBW}
7 Display Status Line Displays analyzer status and error messages.
8Video Bandwidth [BW/SWP] > {VBW}
9Frequency Span [SPAN]
10 Sweep Time [BW/SWP] > {Sweep Time}
11 Key Menu See key label description in the key reference for
12 Key Menu Title Refers to the current activated menu function
13 Marker Frequency [Marker]
14 Marker Amplitude [Marker]
more information.
12 N9340A User’s Guide
N9340A Overview 1
Working with Batteries
Use the original battery supplied with the
instrument.
Installing a Battery
Insert a battery with electrodes physically attached
CAU-CAUTION
properly.
Step Notes
1 Open the battery cover Use a cross type screwdriver to loose
2 Insert the battery
3 Close the battery cover Push the cover closed, then
the screw, then pull the cover open.
ref-fasten the screw.
Viewing Battery Status
Determine the battery status in either of the
following ways:
• Check the battery icon in the lower right corner
of the front panel screen which indicates the
approximate level of charge.
•Press [SYS] > {More (1 of 3)} > {Show System} > {Page
down} to check the current battery information.
N9340A User’s Guide 13
1 N9340A Overview
Charging a Battery
You can only charge the battery when it is in the
analyzer.
first use.
Never use a modified or damaged charger.
CAU-CAUTION
Internal Charging
Use your N9340A to recharge the battery while the
analyzer is operating or shut down.
1 Install the battery in the analyzer.
2 Simply attach the AC-DC adapter and switch on
external power.
3 The charging indicator lights, indicating that the
battery is charging. When the battery is fully
charged, the green charging indicator turns off.
For a fully depleted battery, the charging time is approximately
NOTE
three hours if the analyzer shut down, longer time is needed if
the analyzer is operating.
Fully charge the battery when for the
During charging and discharging, the battery will
monitor and report its voltage, current, and
temperature. If any of these monitored conditions
exceed their safety limits, the battery will
terminate any further charge or discharge until the
error condition is corrected.
14 N9340A User’s Guide
Agilent N9340A
Handheld Spectrum Analyzer
User’s Guide
2
Getting Started
15
Agilent Technologies
15
2 Getting Started
Checking Shipment and Order List
We recommend you check the shipment and order
list according to following procedures 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
indicates signs of unusual stress or compacting.
• Carefully remove the contents from the shipping
container, and check your shipment.
• For any question or problem, contact Agilent
Technologies Customer Contact Center (CCC) for
consultant and service. See “Contact Agilent
Technologies" on page 30.
16 N9340A User’s Guide
Power Requirements
Getting Started 2
The AC power supply must meet the following
requirements
Volt age: 100 VAC to 240 VAC
Frequency: 50 Hz to 60 Hz
Power: Maximum 62 W
The analyzer is equipped with a three- wire power
cord, in accordance with international safety
standards. This cable grounds the analyzer cabinet
when connected to an appropriate power line
outlet. The cable appropriate to the original
shipping location is included with the analyzer.
Various AC power cables are available that are
unique to specific geographic areas. You can order
additional AC power cables for use in different
areas. The table AC Power Cords lists the available
AC power cables, the plug configurations, and
identifies the geographic area in which each cable
is appropriate.
The detachable power cord is the product
disconnecting device. It disconnects the mains
circuits from the mains supply before other parts
of the product. The front switch is only a standby
switch and do not disconnect instrument from
LINE power.
:
N9340A User’s Guide 17
A
2 Getting Started
AC Power Cords
Plug Type Cable Part
Number
8121-1703 BS 1363/A Option 900
250V 10A
8120-0696 AS 3112:2000 Option 901
250V 10A
8120-1692 IEC 83 C4 Option 902
250V 16A
8120-1521 CNS 10917-2
125V 10A
8120-2296 SEV 1011 Option 906
250V 10
8120-4600 SABS 164-1 Option 917
230V 15A
8120-4754 JIS C8303 Option 918
125V 15A
8120-5181 SI 32 Option 919
250V 16A
8120-8377 GB 1002 Option 922
a
Plug
Description
/NEMA 5-15P
For use in
Country & Region
United Kingdom, Hong
Kong, Singapore, Malaysia
Australia, New Zealand
Continental Europe, Korea,
Indonesia, Italy, Russia
Option 903
Unite States, Canada,
Ta i w an , M e xi c o
Switzerland
South Africa, India
Japan
Israel
China
250V 10A
18 N9340A User’s Guide
Safety Considerations
Agilent has designed and tested the N9340A
handheld spectrum analyzer for Measurement,
Control and Laboratory Use in accordance with
Safety Requirements IEC 61010- 1: 2001,
UL 61010- 1 (2004), and CSA C22.2 No.61010- 1- 04.
The tester is supplied in a safe condition.
The N9340A is also designed for use in Installation
Category II and Pollution Degree 2 per IEC 61010
and IEC 60664 respectively.
Read the following safety notices carefully before
you start to use a N9340A handheld spectrum
analyzer to ensure safe operation and to maintain
the product in a safe condition.
Getting Started 2
WARNING
Personal injury may result if the analyzer’s cover are
removed. There are no operator-serviceable parts inside.
Always contact Agilent 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 (provided with a
protective earth ground incorporated in the power cord).
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.
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.
N9340A User’s Guide 19
2 Getting Started
WARNING
WARNING
CAU-CAUTION
NOTE
NOTE
Danger of explosion if the battery is incorrectly replaced.
Replace only with the same or equivalent type
recommended.
Do NOT dispose of batteries in a fire.
Do NOT place batteries in the trash. Batteries must be
recycled or disposed of properly.
Recharge the battery only in the analyzer.
If left unused, a fully charged battery will discharge itself
over time.
Never use a damaged or worn-out adapter or battery.
If you are charging the batteries internally, even while the
analyzer is powered off, the analyzer may become warm.
To avoid overheating, always disconnect the analyzer from
the AC adapter before storing the analyzer into the soft
carrying case.
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 places will reduce the
capacity and lifetime of a battery.
Battery storage is recommended at a temperature of less
o
than 45
Use a dry or slight plain water wetted soft cloth to clean the
outside case only.
C.
20 N9340A User’s Guide
Getting Started 2
°
Environmental Requirements
A N9340A is designed for use under the following
conditions:
• Operating temperature: –10 C to +50 C
• Storage temperature: –40 C to +70 C
• Humidity: 95% or less
• Altitude: 3000 m
°°
°
Electrical Requirements
This analyzer allows you to use either the original
lithium- ion battery pack or the external AC- DC
adapter shipped with the analyzer for power
supply to the analyzer.
Electrostatic Discharge (ESD) Precautions
This analyzer was constructed in an ESD protected
environment. This is because most of the
semiconductor devices used in this analyzer are
susceptible to damage by static discharge.
Depending on the magnitude of the charge, device
substrates can be punctured of destroyed by
contact or mere proximity of a static charge. The
result can cause degradation of device
performance, early failure, or immediate
destruction.
These charges are generated in numerous ways,
such as simple contact, separation of materials,
and normal motions of persons working with static
sensitive devices.
When handling or servicing equipment containing
static sensitive devices, adequate precautions must
be taken to prevent device damage or destruction.
Only those who are thoroughly familiar with
industry accepted techniques for handling static
sensitive devices should attempt to service circuitry
with these devices.
N9340A User’s Guide 21
2 Getting Started
Instrument Markings
N10149
The CE mark shows that the product
complies with all relevant European
Legal Directives
(If accompanied by a year, it signifies
when the design was proven).
The CSA mark is a registered trademark
of the Canadian Standards Association.
The C- Tick mark is a registered
trademark of the Australian Spectrum
Management Agency.
ISM1-A
This symbol is an Industrial Scientific
and Medical Group 1 Class A product
(CISPR 11, Clause 4)
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.
22 N9340A User’s Guide
Getting Started 2
Power on the Analyzer for the First Time
A N9340A is fitted with a transflective screen,
which is viewable under all lighting conditions.
In bright lighting conditions, the display is brighter
and easier to read when you allow light to fall
directly on the screen.
Use original standard adapter for AC-DC conversion.
CAU-CAUTION
The maximum RF input level of an average continuous
power is 33 dBm (or +50 VDC signal input). Avoid
connecting a signal into the analyzer that exceeds the
maximum level.
Power on your N9340A
Insert the battery into the analyzer or connect the
analyzer to an external line power supply via the
AC-DC adapter, then press the power switch on
the front panel of your N9340A to power on the
analyzer.
Allow the analyzer to warm-up for 30 minutes
before making a calibrated measurement. To meet
its specifications, the analyzer must meet operating
temperature conditions.
Install
battery
Press Power
Switch
N9340A User’s Guide 23
Use
stick stand
2 Getting Started
Preparation for Use
Use [SYS] hardkey to check or set the system
settings of your analyzer.
Setting up your N9340A
1 Press [SYS] > {Setting} > {General} to set time and
power saving mode:
• Press {Time/Date} to set the time and date for
your analyzer.
• Press {Power Manager} to select a power saving
mode from the follow three modes: turning off
backlight, turning off screen display, and
turning off both backlight and screen display.
2 Press [SYS] > {Setting} > {Language} to select a
language displayed on screen.
3 A N9340A allows you to manually adjust the
display brightness and contrast.
• Press [SYS] > {Brightness} and then rotate the
knob to adjust display brightness.
• Press [SYS] > {Contrast} and then rotate the
knob to adjust display contrast.
4 Press [SYS] > {More(2 of 3)} > {Key Beep} to toggle
the buzzer beep function between on and off.
Testing key stroke and screen pixel
1 Press [SYS] > {More (2 of 3)} > {Diagnostics} > {Front
Panel} to test all the front panel keys except the
[PRESET] hardkey and power switch.
2 Press [SYS] > {More (2 of 3)} > {Diagnostics} > {Black
Pixel} or {White Pixel} to check the LCD pixel.
24 N9340A User’s Guide
Getting Started 2
Checking Instrument Information
1 Press [SYS] > {More (1 of 3)} > {Show System} to
display the system information.
2 Press [SYS] > {More (2 of 3)} > {Option} to display
the option information.
3 Press [SYS] > {More (1 of 3)} > {Show Error} to
display the error information.
N9340A User’s Guide 25
2 Getting Started
Making a Basic Measurement
This section provides information on basic analyzer
operations with the assumption that you
understand the front and top layout, and display
annotations of your analyzer. If you do not, please
refer to “Front Panel Overview" on page 10 and
“Top Panel Overview" on page 11.
For more information on making measurements,
please refer to “Making Measurements" on
page 43”.
Entering Data
When setting measurement parameters, there are
several ways to enter or modify the value of an
active function:
1 Using Knob
Increases or decreases the current value.
2 Using Arrow Keys
Increases or decreases the current value by step.
Press [FREQ] > {CF Step} to set the frequency by an
auto- coupled step (Step = Span/10, when
{CF Step} mode is set to Auto).
3 Using Numeric Keypad
Enters a specific value. Then press a terminator
(either a specified unit softkey or [ENTER]) to
confirm input.
4 Using Unit Softkeys
Terminates a value input which requires a unit.
5 Using Enter Key
Terminates an entry or confirms a selection.
26 N9340A User’s Guide
Getting Started 2
Viewing a Signal
1 Use a signal generator to generate a continuous
wave signal (1 GHz, 0 dBm).
2 Press [SYS] > {More (1 0f 3)} > {Preset} and select
Default to toggle the preset setting to
factory- defined status.
3 Press the green [Preset] key to restore the
analyzer to its factory- defined setting.
4 Connect the generator’s RF OUT connector to
analyzer’s RF IN connector on the top panel.
5 Press [FREQ] > {Center Freq} > 1> {GHz} to set the
center frequency to 1 GHz.
6 Press [SPAN] > 5 > {MHz} to set the frequency
span to 5 MHz.
7 Press [MARKER] > {Peak Search} > {Peak} to place a
marker (labeled 1) at the highest peak (1 GHz)
on the display.
The value of amplitude and frequency of the
Marker appear both in the function block and in
the up- right corner of the screen.
Use the knob, the arrow keys, or the softkeys in
the Peak Search menu to move the marker and
read out the value of both frequency and
amplitude displayed on the screen.
Figure 1 View a signal (1 GHz, 0 dBm)
N9340A User’s Guide 27
2 Getting Started
Some helpful tips
Performing a time-base calibration
A N9340A provides a manual calibration function
to calibrate the time base.
Before calibration, allow the analyzer to warm up
for about 30 minutes.
Use a BNC cable to connect a 10 MHz reference
signal to the EXT TRIG IN connector of your N9340A,
then press [SYS] > {More (2 of 3)} > {Calibration} > {Time
Base} to initiate a calibration.
Selecting a preset type
The analyzer has two types of preset setting for
you to choose:
• Default
Restores the analyzer to its factory- defined
setting.
• User
Restores the analyzer to a user- defined setting.
Powering on the instrument always brings up a
NOTE
factory-defined setting no matter the Preset setting.
How to Save a User-defined Preset
If you constantly use system setting which is not
the factory default, please refer to the following
steps to create a user- defined system setting:
1 Set analyzer parameters by the knob, the arrow
keys or the numeric keypad.
2 Press [SYS] > {More (1 of 3)} > {Preset} > {Save User}
to save the current parameters as the user
preset setting.
3 Press [SYS] > {More (1 of 3)} > {Preset} (User) to set
the preset mode to user defined system setting.
28 N9340A User’s Guide
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