Notice: This document contains references to
Agilent. Please note that Agilent’s Test and
Measurement business has become Keysight
Technologies. For more information, go to
www.keysight.com.
No part of this manual may be
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and retrieval or translation into a
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agreement and written consent from
Keysight Technologies, Inc. as
governed by United States and
international copyright laws.
Trademark Acknowledgments
Manual Part Number
E8251-90315
Edition
Edition 1, July 2017
Supersedes September 2014
Printed in USA
Published by:
Keysight Technologies
1400 Fountaingrove Parkway
Santa Rosa, CA 95403
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 hard ware and/or software
described in this document are
furnished under a license and may be
used or copied only in accordance
with the terms of such license.
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/sweu
la. 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.
The Keysight E8257D Option H1K provides extended low frequency coverage, with specified
leveled output power up to +7 dBm from 100 kHz to 250 kHz. The Keysight E8257D Option 1EA
or 1EU (high output power) is required with Option H1K.
In all other respects, the E8257D Option H1K is the same as the standard E8257D.
Performance Verification
These specifications apply over
a 15 to 35 °C temperature range. Note that Keysight level
accuracy specifications include flatness uncertainty, attenuator setting uncertainty and
measurement uncertainty (which becomes significant at lower power levels.
Table 1
Frequency+7 to > 0 dBm0 to -10 dBm< -10 to -70 dBm< -70 to -90 dBm
100 to 250 kHz± 0.6± 0.6± 0.7± 0.8
a. Specifications apply in CW and list/step sweep modes over the 15 to 35 ºC temperature range, with
attenuator hold off (normal operating mode). Degradation outside this range, for ALC power levels >
-10 dBm, is typically < 0.3 dB. In ramp sweep mode (with Option 007), specifications are typical.
Specifications do not apply above the maximum specified power.
Power level accuracy is verified over the full freque
Power Level Accuracy Performance Specifications Option H1K (100 kHz)
ncy range and power range of the instrument.
a
This procedure measures only the frequency range extended by this option.
The higher power range (> -45 dBm) is measured using a power meter with a calibrated power
sensor. The lower range (≤ -50 dBm) is measured with a spectrum analyzer. For power levels
≤ -50 dBm, the spectrum analyzer's internal preamplifier is used to boost the lower power levels.
Page 6
Table 2 Test Equipment
3
Keysight E8257D Option H1K User's Guide
E8257D H1K
Performance Verification
Instrument
Power MeterNoneKeysight E4419A or E
Power SensorNoneKeysight E9304A (9 kHz to 6.0 GHz)
Microwave Amplifier20 dB of Gain
Power SupplyKeysight 87421A
Spectrum AnalyzerDisplayed Average
IMPORTANT
At low power levels, residual spurs from adjacent instrument can cause the
DUT to fail the test. Therefore, the instrument must be adequately
separated from one another. Do not place one device on top of another. If
the test fails at very low power levels, offset frequency by +500 Hz and retest. This will shift the test frequency away from possible residual
responses.
Page 7
E8257D H1K
Keysight E8257D Option H1K User's Guide
4
Test Procedure
Test Procedure
Power Range 1: +7 dBm to –45 dBm
Frequency: 100 kHz
1. Allow the test equipment to warm up for 30 minutes. If you are using a two-channel power
meter (E4419B) have the E9304A or E9304A H19 and either the E9300A H25 or 8487A power
sensor (this is dependent on the DUT options) connected to the second channel of the power
meter.
2. Zero and calibrate the E9304A or E9304A H19 power sensor.
3. Connect devices as shown in Figure 1. Connect the power sensor directly to the DUT, no
cable.
4. Set the DUT Center Frequency to 100 kHz.
5. Turn on the RF Power.
6. Set the power output from the DUT to the value given in Table 4 on page 8.
Figure 1 Power Range 1: +7 dBm to -45 dBm
7. Read the power meter. If the power meter reading is
Table 4 on page 8, verify the connections. You may abort or retest.
3 dB less than the power being used in
Page 8
E8257D H1K
5
Keysight E8257D Option H1K User's Guide
Test Procedure
8. Allow an adequate settling time for the DUT and the power sensor before reading. Settling
time for the power sensor is specified for different power levels. The low limit specified for
the power sensor is -45 dBm. Wait 15 seconds before taking a power meter reading when
the DUT power is changed to -45 dBm. After taking the first reading wait 1 second before
taking successive readings. It may be necessary to make repetitive measurements until the
difference between two successive readings is within a specified limit of < 0.01 dB. This limit
must be set so that the range of measurement results is small in comparison to the limit. For
other power levels the wait time before taking a reading is 2 seconds, and the wait time
between successive readings is 0.1 seconds.
9. Compare the Power Level Accuracy to the specification as follows:
Equation 1-1
PLA (P U(P ))-P
dB
gz0
±
gz0
D
UT
10. Set the power to +5 dBm and repeat step 8 and step 9.
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E8257D H1K
Keysight E8257D Option H1K User's Guide
6
Test Procedure
Power Range 2: –50 dBm to –90 dBm
Frequency: 100 kHz
1. Connect the equipment as shown in Figure 2
.
2. Allow the test equipment to warm up for 30 minutes.
3. Perform a full Cal on the PSA and turn Auto Align to off.
4. Set the DUT to -45 dBm.
Figure 2 –50 dBm and Below
5. Set the spectrum analyzer as listed in Table 3 on page 7.
Page 10
Table 3 PSA Spectrum Analyzer
7
Keysight E8257D Option H1K User's Guide
ParameterSettings
Frequency100 kHz
Span40 kHz
Attenuator0 dB
Max Mixer Level-10 dBm
Reference Level-40 dBm
10 MHz ReferenceExternal
E8257D H1K
Test Procedure
Resolution Bandwidth
see Table 4
VBW/RBW 1
Video BandwidthAuto
Preampl
ifier
On
SweeptimeAuto
Trace Points401
FFT & SweepManual FFT
FFTs/Span1
ADC DitherOn
DetectorSample
AVG/VBW TypeLog-Pwr Avg Video
Video AveragingOn
Number Of Averages
see Table 4
Auto AlignOff
Single SweepOn
Input CouplingDC
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E8257D H1K
Keysight E8257D Option H1K User's Guide
8
Test Procedure
Table 4
Power Level (dBm)PSA RBW (Hz)Averages
-451002
-501002
-551002
-601002
-651002
-701002
-751002
-801002
-851002
-90512
PSA Resolution Band width and Average Settings
6. Set the PSA Center Frequency to 102.5 kHz.
7. Perform a single sweep, perform a Marker-peak-search and read the marker amplitude. If
the reading is less than -50 dBm check for a setup failure.
8. Press Marker Peak-Search.
9. Press Marker to Reference Level.
10. Turn on Marker Delta.
11. Turn off the DUT Power.
12. Set the PSA to 15 averages and perform a sweep.
13. Allow the averages to complete and read the Marker Delta value. If the absolute Marker
Delta value is < 100 dB increase the DUT and PSA center frequency by 500 Hz. Restart the
averages and read the Marker Delta, if the absolute Marker Delta value is < 100 dB, again
increase the center frequency by 500 Hz. Increase the frequency a maximum of three times
and if the absolute Marker Delta value is still < 100 dB store this value for later use to
calculate the SNR for the Signal to Noise uncertainty component. If the absolute Marker
Delta value is > 100 dB store this value to calculate the SNR.
14. Set the PSA Video Averaging to 2 averages.
15. Turn on the DUT RF Power.
16. Perform a sweep on the PSA and perform a Marker Normal, and Marker-peak-search.
17. Press Marker-to-reference level.
18. Turn on Marker Delta.
19. Set the DUT power to -50 dBm.
Page 12
20. Perform a single sweep on the PSA.
9
Keysight E8257D Option H1K User's Guide
E8257D H1K
Test Procedure
21. Read marker value (DP)
Pm = P
P
compute: PLAdB = (P
verify that: PLAdB
REF
= f(Pm) (see uncertainty analysis)
gzo
≤
and calculate measured power level:
+ ∆P
±U(P
gzo
specification
gzo
))-P
DUT
Example:
a. Assume frequency = 277 kHz (first point in Table 4 on page 8
).
b. Assume the -45 dBm power setting on the DUT yields -45.1 dBm on the Power Meter.
Record this value for later measurement conversion.
c. The test uses a spectrum analyzer and an internal preamplifier in the power range -50 to
-90 dBm. With the DUT still set at -45 dBm, search for the peak level on the PSA and set
the Amplitude Reference level to that peak level. Turn on the Marker-Delta function.
Change the DUT power to -50 dBm and perform a Marker Peak. For this example, assume
that the change in power measured by the PSA is -4.8 dB. The absolute power level is
then:
-4.8 dB (power relative to the PSA's reference level)
-45.1 dBm (the absolute power at the reference level)
-49.9 dBm = P
m
22. Calculate the SNR for this power level as shown in the following equation.
SNR = |SNR(@-45 dBm) - P|
SNR at -45 dBm = -90.63 dB (previously measured in step 12).
P (from step 20) = -10.11 dB
SNR=|SNR(@-45 dBm) - DP|=|-90.63 dB -
-
10.11 dB|= 80.52 dB
Use 80.52 dB to calculate the Signal to Noise component in the uncertainty for a power level
of -55 dBm.
23. Decrease the DUT power by 5 dB. If necessary change the RBW and Video averages per
Table 4.
24. Repeat step 19 through step 23 for amplitude levels down to -90 dBm.
Page 13
E8257D H1K
Keysight E8257D Option H1K User's Guide
10
Safety and Information
Safety and Information
Introduction
Review this product and related documentation to familiarize yourself with safety markings and
instructions before you operate the instrument.
This product has been designed and tested in accordance with accepted industry standards,
and has been supplied in a safe condition. The documentation contains information and
warnings that must be followed by the user to ensure safe operation and to maintain the
product in a safe condition.
Safety Earth Ground
This is a Safety Class I Product (provided with a protective earthing ground
incorporated in the power cord). The mains plug shall only be inserted in a
socket outlet 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.
Always use the three prong AC power cord supplied with this product. Failure to
ensure adequate earth grounding by not using this cord may cause product
damage and the risk of electrical shock.
Declaration of Conformity
Declarations of Conformity for this product and for other Keysight products may be downloaded
from the Keysight Regulatory Website. Click on "Declarations of Conformity" and enter your
product number to find the latest Declaration of Conformity statement.
http://regulations.about.keysight.com
Statement of Compliance
This instrument has been designed and tested in accordance with CAN/CSA 22.2 No.
61010-1-04, UL Std No. 61010-1 (2nd Edition).
Page 14
E8257D H1K
11
Keysight E8257D Option H1K User's Guide
Safety and Information
Before Applying Power
Verify that the premises electrical supply is within the range of the instrument. The instrument
has an autoranging power supply.
If this product is not used as specified, the protection provided by the
equipment could be impaired. This product must be used in a normal
condition (in which all means for protection are intact) only.
The Mains wiring and connectors shall be compatible with the connector
used in the premise electrical system. Failure, to ensure adequate earth
grounding by not using the correct components may cause product
damage, and serious injury.
Always use the three prong AC power cord supplied with this product.
Failure to ensure adequate earth grounding by not using this cord may
cause product damage and the risk of electrical shock.
This product is designed for use in Installation Category II and Pollution
Degree.
Before switching on this instrument, make sure the supply voltage is
in the specified range.
Verify that the premise electrical voltage supply is within the range
specified on the instrument.
Ventilation Requirements: When installing the instrument in a cabinet,
the convection into and out of the instrument must not be restricted. The
ambient temperature (outside the cabinet) must be less than the
maximum operating temperature of the instrument by 4 °C for every 100
watts dissipated in the cabinet. If the total power dissipated in the
cabinet is greater than 800 watts, forced convection must be used.
Page 15
E8257D H1K
Keysight E8257D Option H1K User's Guide
12
Safety and Information
Danger of explosion if battery is incorrectly replaced. Replace only
with the same or equivalent type recommended. Discard used
batteries according to manufacturer’s instructions.
For continued protection against fire hazard replace line fuse only with
same type and rating. The use of other fuses or material is prohibited.
These servicing instructions are for use by qualified personnel only. To
avoid electrical shock, do not perform any servicing unless you are
qualified to do so.
The opening of covers or removal of parts is likely to expose the user to
dangerous voltages. Disconnect the instrument from all voltage sources
before opening.
No operator serviceable parts inside. Refer servicing to qualified
personnel. To prevent electrical shock, do not remove covers.
The detachable power cord is the instrument disconnecting device. It
disconnects the mains circuits from the mains supply before other parts
of the instrument. The front panel switch is only a standby switch and is
not a LINE switch (disconnecting device).
Connector Care and Cleaning Precautions
Remove the power cord to the instrument. To clean the connectors use alcohol in a well
ventilated area. Allow all residual alcohol moisture to evaporate, and fumes to dissipate prior to
energizing the instrument.
To prevent electrical shock, disconnect the Keysight E8257D Option H1K
from mains electrical supply before cleaning. Use a dry cloth or one slightly
dampened with water to clean the external case parts. Do not attempt to
clean internally.
If flammable cleaning materials are used, the material shall not be stored,
or left open in the area of the equipment. Adequate ventilation shall be
assured to prevent the combustion of fumes, or vapors.
Page 16
Regulatory Information
13
Keysight E8257D Option H1K User's Guide
Instrument Markings
This section contains information that is required by various government
regulatory agencies.
The instruction documentation symbol. The product is marked with this symbol when it is
necessary for the user to refer to the instructions in the documentation.
The AC symbol indicates the required nature of the line module input power.
This symbol indicates separate collection for electrical and electronic equipment,
mandated under EU law. All electric and electronic equipment are required
from normal waste for disposal (Reference WEEE Directive).
This symbol indicates that the power line switch is ON.
This symbol indicates that the power line switch is in the STANDBY position.
This symbol indicates that the power line switch is in the OFF position.
E8257D H1K
Regulatory Information
to be separated
ccr.keysight@keysight.com
ICES/NMB-001
IP 2 0
This symbol is used to identify a terminal which is internally connected to the product frame or
chassis.
The CE mark is a registered trademark of the European Community.
The Keysight email address is required by EU directives applicable to our product.
The CSA mark is a registered trademark of the CSA International.
This is a symbol of an Industrial Scientific and Medical
Clause 5).
This is a marking to indicate product compliance with the Canadian Interference-Causing
Equipment Standard (ICES-001). Cet appareil ISM est conforme à la norme NMB du Canada.
Direct Current.
The instrument has been designed to meet the requirements of IP 2 0 for egress and
operational environment.
The RCM mark is a registered trademark of the Australian Communications and Media
Authority.
Indicates the time period during which no hazardous or toxic substance elements are
expected to leak
the product.
or deteriorate during normal use. Forty years is the expected useful life of
Group 1 Class A product (CISPR 11,
This symbol on all primary and secondary packaging indicates compliance to China standard
GB 18455-2001.
South Korean Certification (KC) mark; includes the marking's identifier code which follows the
format: MSIP-REM-YYY-ZZZZZZZZZZZZZZ.
Page 17
E8257D H1K
Keysight E8257D Option H1K User's Guide
14
Regulatory Information
Battery Collection
Do not throw batteries away but collect as small chemical waste, or in accordance with your
country’s requirements. You may return the battery to Keysight Technologies for disposal. Refer
to “Contacting Keysight” on page 16 for assistance.
Electrical Safety Compliance
SAFETY
Complies with European Low Voltage Directive 2014/35/EU
Accoustical noise emission
LpA<70 dB
Operator position
Normal operation mode
Per ISO 7779
EMI and EMC Compliance
EMC
Complies with European EMC Directive 2014/30/EU
•IIEC 61326-1:2012/EN 61326-1:2013
•CISPR Pub 11 Group 1, class A
•AS/NZS CISPR 11:2011
•ICES/NMB-001
This ISM device complies with Canadian ICES-001.
Cet appareil ISM est conforme a la norme NMB du Canada.
•South Korean Class A EMC declaration
use and is for use in electromagnetic environments outside of the home.
A 급 기기 ( 업무용 방송통신기자재 )이 기기는 업무용 (A 급) 전자파적합기기로서 판 매자 또는 사
용자는 이 점을 주 의하시기 바라 며 , 가정외의 지역에서 사용하는 것을 목적으 로 합니다 .
: This equipment is Class A suitable for professional
Page 18
E8257D H1K
15
Keysight E8257D Option H1K User's Guide
Electrostatic Discharge Protection
Electrostatic Discharge Protection
Electrostatic discharge (ESD) can damage or destroy electronic components. The product is
shipped in materials that prevent damage from static, and should only be removed from the
packaging in an anti-static area ensuring that the correct anti-static precautions are taken.
Two types of ESD protection are listed below. Purchase acceptable ESD accessories from your
local supplier.
•Conductive table-mat and wr
ist-strap combination
•Conductive floor-mat and heal-strap combination
Both types, when used together, provide a significant level of ESD protection. To ensure user
safety, static-safe accessories must provide at least 1 MΩ of isolation from ground.
These techniques for a static-safe work station should not be used
when working on circuitry with a voltage potential greater than 500
volts.
Page 19
E8257D H1K
Keysight E8257D Option H1K User's Guide
16
Keysight Support, Services, and Assistance
Keysight Support, Services, and Assistance
Service and Support Options
There are many other repair and calibration options available from the Keysight Technologies
support organization. These options cover a range of service agreements with varying response
times. Contact Keysight for additional information on available service agreements for this
product.
Contacting Keysight
Assistance with test and measurement needs, and information on finding a local Keysight office
are available on the Internet at:
http://www.keysight.com/find/assist
You can also purchase accessories or documentation items on the Internet at:
http://www.keysight.com/find
If you do not have access to the Internet, contact your field engineer.
In any correspondence or telephone conversation, refer to the Keysight
product by its model number and full serial number. With this information,
the Keysight representative can determine the warranty status of your unit.
Shipping Your Prod uct to Keysight for Service or Repair
IMPORTANT
If you wish to send your instrument to Keysight Technologies for service or repair:
•Include a complete description of the service requested or of the failure and a description of
any failed test and any error message.
•Remove and retain the front handles and all rack mount hardware. The analyzer should be
sent to Keysight in the same configuration as it was originally shipped.
•Remove and retain the front handles and all rack mount hardware. The analyzer should be
sent to Keysight in the same configuration as it was originally shipped.
Keysight Technologies reserves the right to reformat or replace the internal
hard disk drive in your analyzer as part of its repair. This will erase all user
information stored on the hard disk. It is imperative, therefore, that you make a
backup copy of your critical test data located on the analyzer’s hard disk
before shipping it to Keysight for repair.
•Contact Keysight for instructions on where to ship your analyzer.