SIGNAL ANALYZERS
EMC Design Course/EMI Measurement Software
Models 11949A, 85869A, 85870A, 85874A
Locate EMI "hot spots" quickly
Increase EMI measurement repeatability
Utilize powerful analysis aids
Begin testing at system turn-on
Test to standard or internal limits
Automatically correct data for transducer and system
gain/loss
HP 11949A EMC Design Course
HP 85869A EMI Measurement Software
"Designing for Electromagnetic Compatibility" is a new, two-day
course for engineers who face issues of electromagnetic compatibility.
Emphasis is on evaluating and solving EMC problems early in the
design phase, rather than during final EMC-compliance testing. Instruction and demonstrations provide EMC fundamentals, methods
of measuring EMC, and principles of incorporating proven EMC design into products. Topics include radiation from digital circuits, nonconductive coupling, diagnosing EMI problems, shielding, commonimpedance coupling, susceptibility, cables, and electrostatic discharge. An 11-chapter handbook used in the class serves as a permanent reference. For locations and dates near you, call your local HP
sales office listed on page 739.
The HP 85869A EMI Measurement Software is a general-purpose
program for making automatic commercial and military emission
measurements using an HP 8566B, 8567A, or 8568B Spectrum Analyzer. The friendly menu structure of the program leads you through
an EMI measurement from initial setup to the final plotting of the
test results. The HP 85869A has an easy start-up procedure, so you
are "ready to run" even if you have never programmed before.
HP 85870A Open-Site EMI Measurement
System Software
The HP 85870A Open-site EMI Measurement System (OEMS)
Software is specially designed to automate and simplify commercial
EMI, radiated-emission compliance measurements. EMI measurements made at open sites, due to ambient signals present in the measurement environment, are inherently more complex than
measurements made in shielded enclosures. The HP 85870A helps
EMI engineers and technicians quickly obtain repeatable, accurate,
and completely documented measurement results using the HP
8573A and 8574A EMI Receivers.
Identify and record ambients
The OEMS Software allows you to identify and categorize
ambients by automatically (or manually) generating a list of the frequencies and amplitudes of ambient signals that are present when the
equipment under test (EUT) is off. The ambient list is incorporated
into a user-defined frequency-band table, which allows you to segment the entire range of interest and categorize the ambients in each
band. For example, you can specify and label the 6-meter ham, FM
radio, and land mobile bands in the frequency-band table. Methods
are provided to generate and maintain complex ambient signal lists
for repeated use. The spectrum analyzer screen is marked where the
ambient signals occur for simplified identification of suspect EUT
emissions.
Identify and maximize EUT emissions
With a complete ambient list and a remote AC power switch, the
software can automatically turn on the EUT and find suspect emissions, even in the presence of impulsive or noisy environments. The
EMC engineer or technician can then select from a number of features such as Tune & Listen, EUT On/Off, and Zoom Local to determine which signals are coming from the EUT. Confirmed emissions
are assigned to a final list of signals. Each emission's amplitude is
then determined by automatically controlling a turntable and antenna mast using a signal characterization routine of your choice. EUT
emissions can be manually maximized using the SIG PEAK function,
which controls an HP-IB antenna mast and turntable or allows manual positioning. The OEMS software records information on each signal such as frequency and amplitude deviation from the limit, as well
as the antenna height, turntable position, and user comments.
Generate complete reports in desired formats
Complete measurement results are documented in the format of
your choice using the OEMS Software Report Generator. You can
design your own test report using combinations of fixed text and
updateable variable fields for the date and time of test, equipment
name and serial number, or any other information. Ambient, suspect,
or final signal lists and log frequency plots of the final data can be
integrated with your text for concise, professional-looking reports. A
library is provided to store these report formats. CRT data and signal
lists can also be sent to a printer or plotter from virtually any point in
the software.
Automate MIL-STD and commercial EMI
measurements
The HP 85869A EMI Measurement Software automates military
and commercial EMI emission measurements. It is designed to automate EMI measurements made in a shielded enclosure. The HP
85869A takes advantage of the spectrum analyzer's ability to quickly
measure wide frequency spans and locate EMI "hot spots" using peak
detection. For commercial measurements, quasi-peak data need be
taken only at these "hot spots." Save time and effort in your MILSTD measurements by letting the software automatically
descriminate between narrowband and broadband signals.
Design your own tests
Design your own tests or choose from the examples given in the
software. These examples reside in the test library and include MILSTD, FCC, and VDE/FTZ emission tests. Transducer factors, test
limits, and receiver parameters are easily changed and stored in libraries. Once your test is designed, it is stored away and can be executed repeatedly at the push of a key.
Compatibility
The HP 85869A and 85870A are compatible with the following
equipment:
Spectrum Analyzer*
HP 8566B, 8567A, 8568B
HP 85685A
RF Preselector
HP 85650A
Quasi-Peak Adapter
HP 8573A, 8574A
EMI Receiver
Computer*
HP 9000 Series 300 Model 310, 319,
320, 330, 332, 340, 350, 360, 370
HP 9000 Series 200 Model 216, 236
Memory Requirements* 2 Mbytes
Mass Storage*
HP 9122C, 9153C
HP 7440A, 7475A, 7550A
Plotters
Printers
HP 2225A, 2227B, LaserJet Series II,
DeskJet
DMA Controller
HP 98620B
Floating Point Card
HP 98635A
HP 50962A
SRM Interface
'Minimum equipment required
Ordering Information
HP 11949A "Designing for EMC" Course
HP 85869A EMI Measurement Software
Opt. 630 3 1/2-inch media
Opt. 655 5 1/4-inch media
Opt. 830 Upgrade kit for HP 85864A/B/C software,
3 1/2-inch media
Opt. 855 Upgrade Kit for HP 85864A/B/C software,
5 l/4-inch media
HP 85870A OEMS Software
Opt. 630 3 1/2-inch media
Opt. 655 5'/4-inch media
HP 85874A Bundled EMI Software
Includes HP 85869A and 85870A
Opt. 630 3 1/2-inch media
.
Opt. 655 5 1/4-inch media
Price
$750
$0
$5,000
$5,000
$500
$500
$0
$5,200
$5 200
$0
$7,280
$7,280
SIGNAL ANALYZERS
Impulse Bandwidth/EMI Diagnostic Measurement Card/EMI Accessories
HP 8566B/68B Option 462
Option 462 for HP 8566B and 8568B spectrum analyzers provides
impulse bandwidths for making MIL-STD and DEF STAN EMI
measurements. Standard HP 8566B and 8568B models have 12 resolution bandwidth filters (10 Hz to 3 MHz in a 1, 3, 10 sequence)
specified in terms of their 3 dB bandwidth. Option 462 modifies the 1
kHz to 3 MHz resolution bandwidth filters to correspond to their impulse bandwidth instead.
In addition to enhancing instrument capability for MIL-STD
461A/B/C and 462 EMI measurements, spectrum analyzers with
Option 462 can still make all commercial EMI and general-purpose
measurements. Option 462 spectrum analyzers are compatible with
the HP 85650A Quasi-peak Adapter, HP 85685A RF Preselector,
HP 85864C EMI Measurement Software, HP 85870A Open-site
Measurement Software and the HP 85867A EMI Receiver Functions
program. Existing HP 8566B and 8568B spectrum analyzers can be
modified to include Option 462. For more information, contact your
local sales office listed on page 739.
HP 85712A EMC Diagnostic Measurement Card
This memory card customizes the new HP 8590B and 8591A,
8592B, and 8593A spectrum analyzers for electromagnetic-compatibility testing. When you use these EMC-evaluation analyzers with
the HP 11945A close-field probe set, you have capability for comprehensive diagnostic electromagnetic-interface measurements. (For
more information on the portable spectrum analyzers, see page 104.)
HP 11940A and 11941A Close-field Probes
These small, hand-held electromagnetic-field sensors are used with
a spectrum analyzer for EMI diagnostic and troubleshooting applications. A dual-loop configuration and balun structure enable them to
make repeatable, absolute magnetic-field measurements. The HP
11941A operates from 9 kHz to 30 MHz; the HP 11940A, from 30
MHz to 1 GHz.
Designed to measure radiation from surface currents, slots, and
cables, these probes are ideal for diagnostic testing of printed circuit
boards, cabling, and shielded enclosures. Five antenna factor points
appear on the back of each probe for calculating absolute magneticfield strength (dBuA/m) from the spectrum analyzer's dBuV reading.
Double-shielded cables and adapters are included with the HP
11945A Close-field Probe Set, which includes both probes. Option
E51 adds the HP 8447F Option H64 Preamplifier and a convenient
carrying bag.
HP 11947A Transient Limiter
The model HP 11947A Transient Limiter protects a spectrum analyzer input from the damage caused by high level transients from line
impedance stabilization networks (LISNs) during EMI testing for
conducted emissions.
A high-pass filter and a 10 dB attenuator are incorporated into the
HP 11947A Transient Limiter, which is capable of withstanding inputs as high as 10 kW for 10 Msec, or 2.5 W of average power. The
built-in high pass filter helps reduce 60 Hz line feedthrough that
might impede conducted emission measurements.
Recommended EMI Transducer Kits
HP EMC Design Support Tools
Ordering Information
HP 8566B/68B Option 462
HP 85712A EMI Diagnostic Measurement Card
Recommended EMC Configurations
HP 8590B RF Spectrum Analyzer
Opt 010 Tracking Generator, 50 Ohms
Opt 021 HP-IB Interface
HP 8591A RF Spectrum Analyzer
Opt 010 Tracking Generator, 50 Ohms
Opt 021 HP-IB Interface
HP 11945A Close-field Probe Set
Option E51 adds preamplifier, accessory-carrying
bag, and 36-inch, Type N cable
Price
$2,C 40
$560
$8,995
$3,200
$600
$ 12,000
$3,600
$600
$1,100
$2,510
HP 11941A Close-field Probe (9 kHz-30 MHz)
$650
HP 11940A Close-field Probe (30 MHz-1 GHz)
Option 001 Rotary Joint
HP 11947A Transient Limiter
$650
$3 !5
$470
EMI Accessories
Price
Turntable for Radiated Emission Testing
Equipment Testing Turntable with HP-IB control.
HP 85685A Option K40: 50-60 Hz, 100-120 volts
$9,725
HP 85685A Option K41: 50-60 Hz, 220-240 volts
$9,725
Tower for Radiated Emission Testing.
Antenna Positioning Tower with HP-IB and polarization control.
HP 85685A Option K42: 50-60 Hz, 100-120 volts
$15,3 5
HP 85685A Option K43: 50-60 Hz, 220-240 volts
$15,3 5