Agilent 11955A Data Sheet

EMC Accessories
Catalog

Transducers and Accessories

HP 11966 Series Antennas

HP 11967 Series Conducted
EMC Accessories

HP 11968 Series EMC
Positioning Accessories

A fully equipped electromagnetic
compatibility (EMC) laboratory
requires a wide variety of
instruments, equipment, and
accessories to allow measure­ments to be made accurately
and efficiently. On a smaller
scale, design engineers and test
technicians also need an
assortment of measurement
tools to evaluate their product
designs prior to formal EMC
compliance testing.

This EMC accessories catalog
helps you quickly find the
equipment you need to make
your EMC measurements.

You’ll find a large selection of
antennas, current probes, LISNs,
cables, tripods, preamplifiers,
and other accessories. Each is
designed to enhance your EMC
measurement capabilities and
provide lasting value.

Hewlett-Packard is continually
expanding its line of EMC
accessories to ensure the most
comprehensive line of EMC test
equipment available. Be sure to
check with your local HP sales
representative if you need an
item that is not listed in this
product overview.

2

Table of Contents

Listed by Hewlett-Packard Model Number

Model Number Description Page

HP 11500A Six foot RG-214U Cable with Type-N Connector 20
HP 11500F 150 cm Cable (APC 3.5 Male Connectors) 20
HP 11940A Close Field Probe 30 MHz to 1 GHz 22
HP 11941A Close Field Probe 9 KHz to 30 MHz 22
HP 11945A Close Field Probe Set 22
HP 11947A Transient Limiter 20
HP 11955A Biconical Antenna 7
HP 11956A Log Periodic Antenna 8
HP 11960A EMC Preselector 24
HP 11961A EMI Measurement Software 19
HP 11966A Active Magnetic Loop Antenna 6
HP 11966A K12 Passive Loop Set 10
HP 11966A K24 Biconical Antenna 20 MHz to 300 MHz (2000 Watts) 7
HP 11966A K30 Passive Rod Antenna 10
HP 11966A K38 Biconical Antenna 30 MHz to 300 MHz (300 Watts) 7
HP 11966A K40 Royce Field Site Source 10
HP 11966A K47 Five Meter Cable (APC 3.5 Male Connector) 20
HP 11966A K48 Ten Meter Cable (APC 3.5 Male Connector) 20
HP 11966B Active Monopole Antenna 6
HP 11966C Biconical Antenna 30 MHz to 300 MHz 7
HP 11966D Log-Periodic Antenna 200 MHz to 1 GHz 8
HP 11966E Double-Ridged Waveguide Horn Antenna 1 GHz to 18 GHz 9
HP 11966F Conical Log Spiral Antenna 200 MHz to 1 GHz 11
HP 11966G Conical Log Spiral Antenna 1 GHz to 10 GHz 11
HP 11966H Dipole Antenna Set 28 MHz to 1000 MHz 12
HP 11966I Horn Antenna 200 MHz to 2 GHz 9
HP 11966J Horn Antenna 18 GHz to 40 GHz 9
HP 11966K Magnetic Field Pickup Coil 20 Hz to 50 kHz 13
HP 11966L Coaxial Cable 10 Meter Type-N 20
HP 11966M Coaxial Cable 10 Meter BNC 20
HP 11966N Log Periodic Antenna 200 MHz to 5 GHz 8
HP 11966P Broadband Antenna 14
HP 11967A K05 Absorbing Clamp 5
HP 11967A K06 Cavity Rejection Networks 13
HP 11967A K23 Bridged-T Rejection Networks 13
HP 11967A Current Probe 15 kHz to 50 MHz 4
HP 11967B Current Probe 20 Hz to 2 MHz 4
HP 11967D 10A Line Impedance Stabilization Network 5
HP 11967E 25A Line Impedance Stabilization Network 5
HP 11968A K07 Shielded Room Kit 19
HP 11968B Manual Antenna Positioning Mast 17
HP 11968C Antenna Tripod 23
HP 11968E Manual Equipment Test Turntable 18
HP 8447F H64 Dual Preamplifier 0.1 to 1300 MHz 21
HP 8449B Microwave Preamplifier 1 GHz to 26.5 GHz 21
HP 85650A Quasi-Peak Adapter 25
HP 85685A RF Preselector 24
HP 85876B Commercial Radiated EMI Software 19
HP 85878A EMI Report Generator 19
0160-6683 10 µF Capacitor 4
8120-1840 122

Centimeter Coaxial Cable 20

11729-60014 Low Noise Preamplifier 21

3

Recommended Transducers for Commercial
and MIL-STD EMI Testing

10 Hz

100 Hz 1 KHz 10 KHz

9 KHz 30 MHz

100 KHz

1 MHz

Frequency Range

10 MHz 100 MHz

1 GHz 10 GHz 100 GHz

(conducted)
CISPR, EN, FCC, VCCI, VDE
use LISN with Transient Limiter - HP 11967D/E or 11947A

(radiated)
VDE
use Magnetic Loop Antenna - HP 11966A

30 MHz

300 MHz

CISPR Power
use Absorbing Clamp - HP 11967A K05

(radiated)
CISPR, EN, FCC, VCCI, VDE
use Biconical Antenna - HP 11966C,
Tunable Dipole - HP 11966H,
Broadband Antenna HP 11966P

200 MHz 1 GHz

200 MHz 5 GHz

(radiated)
CISPR, EN, FCC, VCCI, VDE
use Log Periodic - HP 11966D,
Tunable Dipole - HP 11966H,
Broadband Antenna HP 11966P

(radiated)
CISPR, EN, FCC, VCCI, VDE
use Log Periodic - HP 11966N

30 Hz

50 MHz

30 Hz

50 KHz

10 KHz

30 MHz

40 GHz

300 MHz

200 MHz

200 MHz

1 GHz

20 MHz

(conducted)
MIL-STD 461A/B/C
use Current Probes HP 11967A/B,
10 µF Capacitor 0160-6683
MIL-STD 461D
use LISN HP 11967D/E

(radiated)
MIL-STD 461D
use Magnetic Field Pickup - HP 11966K

(radiated)
MIL-STD 461A/B/C/D
use Rod Antenna - HP 11966B

(radiated)
MIL-STD 461A/B/C/D
use Biconical - HP 11966C

(radiated)
MIL-STD 461D
use Log Periodic - HP 11966P

(radiated)
MIL-STD 461A/B/C/D
use Horn Antenna - HP 11966l,
Horn Antenna - HP 11966J,
Horn Antenna - HP 11966E

MIL-STD
Tests

Commercial
Tests

4

HP 11967A Current Probe

This current probe is designed
for MIL-STD 461A/B/C CE-03
measurements of conducted
emissions on power and has a
constant transfer impedance of

0.5 Ω (±2 dB) from 50 kHz to

50 MHz.

Conducted EMI Accessories

Frequency Range 15 kHz - 50 MHz
Max Primary Power 350 A, DC - 60 Hz
Aperature Diameter 25 mm (1 in)
Connector Type N female

HP 11967B Current Probe

This current probe is designed
for MIL-STD 461A/B/C CE-01
and 461D CE101 measurements
of conducted emissions on
power and interconnecting
leads. The probe has a constant

transfer impedance of 0.3 Ω

(±2 dB) from 2 kHz to 2 MHz.

Frequency Range 20 Hz - 2 MHz
Max Primary Power 100 A, DC - 400 Hz
Aperature Diameter 25 mm (1 in)
ConnectorType N female

0160-6683 10 µF Capacitor

Many MIL-STD 461A/B/C
conducted emissions test setups
require a 10 µF capacitor be
placed between each line being
tested and the metallic tabletop
surface where the test is being
made.

Capacitance Value 10 µF ± 10%
Maximum Voltage 600 VDC, 250 V at 400 Hz
Maximum Current 50A
Connector Type 1/4-28 feed-thru stud

5

Conducted EMI Accessories

HP 11967D 10A
Line Impedance
Stabilization Network

This V-network, two line, single
phase line impedance
stabilization network (LISN)
meets the requirements of the
FCC, VDE, and the European
Norms (ENs) for commercial
conducted emissions testing.
NEMA power outlet comes
standard with product.

Frequency Range 9 kHz - 30 MHz
Power Source Frequency DC - 60 Hz
Maximum Current 10 A
Maximum Voltage 460 VAC line-to-line

250 VAC line-to-ground

Network Inductance 50 µH - 250 µH
Network Impedance 50

Ω

Connector Type BNC female
Option 001 SCHUKO outlet
Option 002 British outlet

HP 11967E 25A
Line Impedance
Stabilization Network

This LISN is a two line single
phase device. It has a standard
NEMA power outlet adapter.

HP 11967A K05
Absorbing Clamp

The absorbing clamp is used in
CISPR 14 based tests to measure
interference power levels on
cables connected to electronic
and electrical devices.

Frequency Range 9 kHz - 30 MHz
Power Source Frequency DC - 60 Hz
Maximum Current 25 A
Maximum Voltage 460 VAC line-to-line

250 VAC line-to-ground

Network Inductance 30 µH - 250 µH
Network Impedance 50

Ω

Connector Type BNC female
Option 001 SCHUKO outlet
Option 002 British outlet
Option 003 Australian outlet

Frequency Range 30 MHz - 1 GHz
Aperature Size 27 mm
Connector Type BNC female

6

Antennas

l

HP 11966A Active Magnetic
Loop Antenna

The HP 11966A active loop
antenna was designed specifically
for three-meter VDE 0871 Limit
B magnetic-emissions testing.
A built-in preamplifier in the
antenna base matches the low
impedance of the loop with the
50 watt input of the EMI receiver
and provides a consistent, linear
antenna factor over the frequency
range of the antenna. A built-in
saturation indicator alerts the
operator to overload conditions.
The standard unit is supplied
with a 120 VAC/60 Hz battery
charger. Option 220 replaces the
standard battery charger with a
220 VAC/50 Hz unit.

HP 11966B Active Monopole
Antenna

This broadband active rod E-field
antenna has a preamplifier
built into its base. This design
provides sensitivity, high
dynamic range, and a flat
antenna factor, yet eliminates
the need for manual tuning or
bandswitching. A built-in
saturation indicator alerts the
operator to overload conditions.
The standard unit is supplied
with a 120 VAC/60 Hz battery
charger. Option 220 replaces the
standard battery charger with a
220 VAC/50 Hz unit.

Frequency Range 10 kHz - 30 MHz
Loop Diameter 600 mm (23.6 inches)
Battery Type Rechargeble, sealed

lead-acid

Impedance 50

Ω

Connector Type BNC female
Mounting Base (to attach unit to tripod)

1/4 inch x 20 female thread

Frequency Range 30 Hz - 50 MHz
Internal Atten 10 and 30 dB
Saturation Point 22 V/m (using 30 dB atten)
Battery Type Rechargeble, sealed

lead-acid

Impedance 50

Ω

Connector Type BNC female
Mounting Base (to attach unit to tripod)

1/4 inch x 20 female thread

Frequency Typical Antenna Factor
(MHz) (dB)

0.01 17.7

0.02 13.4

0.05 10.0

0.07 10.4

0.1 10.2

0.15 10.1

0.25 10.1

0.5 10.2

0.75 10.3
1 10.4
2 10.5
3 10.5
4 10.6
5 10.6
10 10.6
15 10.3
20 9.6
25 8.6
30 7.1

Frequency Typical Antenna Factor
(MHz) (dB)

0.0001 5.3

0.0003 1.7

0.0005 1.2

0.0007 1.1

0.0009 1.0

0.001 1.1

0.003 0.9

0.005 0.8

0.007 0.9

0.009 0.6

0.01 1.0

0.03 0.7

0.05 0.6

0.07 0.5

0.09 0.5

0.1 0.6

0.3 0.5

0.5 0.5

0.7 0.5

0.9 0.6
1 0.6
3 1.4
5 1.6
7 1.9
9 2.2
20 2.9
50 9.6

1. All antennas sold by HP are individually calibrated. They include a calibration certificate showing actual

performance data. The antenna factors shown in this catalog are intended to show typical performance only.

7

Antennas

1

HP 11966A K24
Biconical Antenna

The rugged balun design of this
antenna makes it especially
suitable for susceptibility tests
where high input powers are
needed.

Frequency Range 20 MHz - 300 MHz
Max Contin Power 2000
VSWR (avg) 1.9 : 1
Impedance 50

Ω

Connector Type N female
Mounting Base 1/4 inch x 20 female thread

HP 11966A K38
Biconical Antenna

This versatile antenna is useful
for both emissions and immunity
measurements and can handle
up to 300 watts of continuous
power.

Frequency Range 30 MHz - 300 MHz
Max Contin Power 300 W
VSWR (avg) < 2.5 : 1
Impedance 50

Ω

Connector Type N female
Mounting Base 1/4 inch x 20 female thread

HP 11966A K24 HP 11966A K38

Frequency Antenna Factors
(MHz) (dB)

20 11.5 —
30 13.0 13.5
40 14.7 15
50 12.2 12.7
60 10.1 10.4
70 8.9 8.9
80 8.0 8.5
90 8.9 8.8
100 9.6 9.6
110 11.3 11.3
120 12.8 12.6
130 14.5 14.1
140 15.9 16.0
150 16.5 16.6
160 16.0 16.5
170 15.3 15.6
180 14.5 14.8
190 14.5 14.5
200 13.8 14.1
210 14.0 14.1
220 14.5 14.4
230 15.8 15.8
240 16.8 17.0
250 18.3 18.9
260 19.9 20.3
270 21.4 22.0
280 22.6 23.1
290 20.9 21.0
300 24.6 22.7

HP 11966C
Biconical Antenna

This state-of-the-art antenna
uses ferrites in the balun and
along the feedline to eliminate
common-mode currents.
It employs a novel element-cage
design that allows an extremely
smooth response curve.

Frequency Range 30 MHz - 300 MHz
Max Contin Power 0.5 W
VSWR (avg) < 1.8 : 1 (with 6 db pads)
Impedance 50

Ω

Connector Type N female
Mounting Base 1/4 inch x 20 female thread

Frequency Typical Antenna Factor
(MHz) (dB)

30 19.0
40 17.9
50 13.2
60 9.0
70 6.6
80 7.6
90 9.2
100 10.5
110 12.0
120 14.0
130 16.3
140 18.4
150 19.4
160 19 0
170 18.3
180 17.6
190 17.0
200 16.7
210 17.0
220 17.4
230 18.2
240 19.1
250 20.4
260 22.4
270 24.5
280 25.5
290 25.0
300 24.9

1. All antennas sold by HP are individually calibrated except for HP 11955A and
HP 11956A which have typical antenna factors. They include a calibration certificate
showing actual performance data. The antenna factors shown in this catalog are
intended to show typical performance only.

HP 11955A
Biconical Antenna

This economical antenna has
typical antenna factors.

Frequency Range 30 MHz - 300 MHz
Max Contin Power 0.5 W
VSWR (avg) 1.8 : 1
Impedance 50

Ω

Connector Type N female
Mounting Base 1/4 inch x 20 female thread

8

Antennas

1

HP 11966D
Log Periodic Antenna

The HP 11966D is a broadband,
relatively high-gain antenna
that is suitable for both
commercial and military EMC
measurements.

Frequency Range 200 MHz - 1 GHz
Max Contin Power 1000 W
VSWR (avg) < 2 : 1
Impedance 50

Ω

Connector Type N female
Mounting Base 1/4 inch x 20 female thread

Frequency Typical Antenna Factor
(MHz) (dB)

200 17 0
225 14.8
250 14 3
275 14.9
300 16.8
325 17.5
350 18.7
375 17.5
400 17.1
425 17.4
450 18.4
475 19.8
500 20.5
525 19.2
550 19.5
575 19.7
600 20.7
625 21.5
650 22.0
675 21.6
700 21.6
725 22.1
750 22.7
775 22.8
800 22.6
825 22.6
850 23.2
875 24.0
900 24.4
925 24.3
950 23.9
975 24.4
1000 25.1

HP 11966N
Log Periodic Antenna

This antenna has similar performance characteristics to the
HP 11966D, but has an extended frequency range to 5 GHz.
This is useful for some of the new commerical test requirements,
such as FCC part 15 limits for high-speed unintentional
radiators, which now extend beyond 1 GHz.

Frequency Range 200 MHz - 5 GHz
Max Contin Power 80 W
VSWR (avg) 2 : 1
Impedance 50

Ω

Connector Type N female
Mounting Base 1/4 inch x 20 female thread

Frequency Antenna Factor
(GHz) (dB)

0.2 10

0.5 17

1.0 23

1.5 27

2.0 29

2.5 32

3.0 34

3.5 37

4.0 38

4.5 41

5.0 42

HP 11956A
Log Periodic Antenna

This economical antenna has
typical antenna factors.

Frequency Range 200 MHz - 1 GHz
VSWR (avg) < 2 : 1
Impedance 50

Ω

Connector Type Type-N
Mounting Base 1/4 inch x 20 female thread

1. All antennas sold by HP are individually calibrated. They include a
calibration certificate showing actual performance data. The antenna factors
shown in this catalog are intended to show typical performance only.

9

HP 11966E Double Ridged
Waveguide Horn Antenna

This antenna covers a very
broad frequency range and
provides excellent gain and
VSWR characteristics. It is
suitable for receiving and
transmitting signals and can
handle up to 300 watts of power.

Frequency Range 1 GHz - 18 GHz
Maxi Contin Power 300 W
VSWR (avg) < 1.5 : 1
Impedance 50

Ω

Connector Type N female
Mounting Base 1/4 inch x 20 female thread

Frequency Typical Antenna Factor
(MHz) (dB)

1000 24.4
1500 25.7
2000 28.4
2500 29.4
3000 31.0
3500 32.2
4000 33.8
4500 33 0
5000 34.7
5500 35.4
6000 35.4
6500 35.7
7000 36.5
7500 37 8
8000 38.0
8500 38.1
9000 38.4
9500 38.4
10000 38.5
10500 38.6
11000 39.0
11500 39.3
12000 39.4
12500 39.0
13000 39.9
13500 41.3
14000 41.4
14500 41.3
15000 39.9
15500 37.5
16000 38.2
16500 39.8
17000 41.7
17500 44.6
18000 46.9

HP 11966I Horn Antenna

This horn covers the RF range
and is very useful as a receiving
antenna for MIL-STD emissions
tests. Its high power handling
capability also makes it an
excellent transmitting antenna
for susceptibility/immunity tests.

Frequency Range 200 MHz - 2 GHz
Max Contin Power 800 W
VSWR (avg) 1.6 : 1
Impedance 50

Ω

Connector Type N female
Mounting Base 1/4 inch x 20 female thread

Frequency Antenna Factor
(GHz) (dB)

0.2 11

0.4 14

0.6 18

0.8 19

1.0 22

1.2 23

1.4 25

1.6 26

1.8 25

2.0 32

HP 11966J Horn Antenna

The double-ridged design of this
horn enables it to cover two
waveguide bands with a single
antenna.

Frequency Range 18 GHz - 40 GHz
Max Contin Power 50 W
VSWR (avg) 1.6 : 1
Impedance 50

Ω

Connector Type K female
Mounting Base 1/4 inch x 20 female thread

Frequency Antenna Factor
(GHz) (dB)

18 45
20 44
25 46
30 47
35 50
40 46

Antennas

l

1. All antennas sold by HP are individually calibrated. They include a
calibration certificate showing actual performance data. The antenna factors
shown in this catalog are intended to show typical performance only.

10

Antennas

1

Frequency Range 1 kHz - 30 MHz
Max Contin Power 300 W
Impedance 50

Ω

ConnectorType N female
Mounting Base 1/4 inch x 20 female thread

HP 11966A K30
Passive Rod Antenna

The HP 11966A K30 is a passive broadband electric field monopole
transmitting antenna that has a frequency range of 1 kHz to
30 MHz. It features manual band switching between

0.001 to 5 MHz, and 5 to 30 MHz.

Frequency Range 1 kHz - 30 MHz
Connector Type BNC on antenna 1

N female on antenna 2

Sensitivity (ant 1) -29 dB

µA/M (@ 1 MHz)

Dynamic Range (ant 1) 116 dB @ 1 MHz
Max Power (ant 2) 1 kW
Mounting Base 1/4 inch x 20 female thread

HP 11966A K12
Passive Loop Set

The HP 11966A K12 passive loop set is designed for measuring
shielding effectiveness. It consists of two loop antennas. The first one
has a built-in, battery operated preamplifier. The preamplifier
provides greater sensitivity and uniform antenna factors. The second
antenna is band-selectable in four bands and can accept up to 1 kW
input power.

HP 11966A K40
Royce Field Site Source

The HP 11966A K40 Royce field site source generates radiated
emissions of a consistent frequency and amplitude. The emissions
are used to create a base standard for a specific test site. The site
could be either an indoor or outdoor facility. The Royce source is
used in place of a DUT and a normal radiated emissions test is then
performed. These test results become the bases by which future site
tests are compared. Deviation from the base data could indicate test
site problems. Frequency range: 10 MHz to 600 MHz.

1. All antennas sold by HP are individually calibrated. They include a calibration
certificate showing actual performance data. The antenna factors shown in this
catalog are intended to show typical performance only.

11

1. All antennas sold by HP are individually calibrated. They include a calibration
certificate showing actual performance data. The antenna factors shown in this
catalog are intended to show typical performance only.

Antennas

l

HP 11966F Conical
Log Spiral Antenna

The HP 11966F was designed
specifically for MIL-STD 461A/B/C
radiated measurements. Because it
is circularly polarized, it can receive
fields in any polarity. This
eliminates the need to duplicate
the measurement in both
horizontal and vertical orientation
to find maximum emissions.

Frequency Range 200 MHz - 1 GHz
Max Contin Power 100 W
VSWR (avg) < 2.5 : 1
Impedance 50

Ω

Connector Type N female
Mounting Base 1/4 inch x 20 female thread

Frequency Typical Antenna Factor
(MHz) (dB)

200 17.0
225 14.8
250 14.3
275 14.9
300 16.8
325 17.5
350 18.7
375 17.5
400 17.1
425 17.4
450 18.4
475 19.8
500 20.5
525 19.2
550 19.5
575 19.7
600 20.7
625 21.5
650 22.0
675 21.6
700 21.6
725 22.1
750 22.7
775 22.8
800 22.6
825 22.6
850 23.2
875 24.0
900 24.4
925 24.3
950 23.9
975 24.4
1000 25.1

Frequency Typical Antenna Factor
(MHz) (dB)

1000 27.1
2000 33.3
3000 36.1
4000 40.4
5000 42.3
6000 43.3
7000 45.1
8000 46.1
9000 47.9
10000 49.9

Frequency Range 1 GHz - 10 GHz
Max Contin Power 50 W
VSWR (avg) < 2 : 1
Impedance 50

Ω

Connector Type N female

HP 11966G Conical
Log Spiral Antenna

This antenna is similar to the
HP 11966F, but it is designed
to operate in the 1 to 10 GHz
region. It is ideally suited for
MIL-STD 461A/B/C microwave
radiated measurements.

12

Antennas

l

HP 11966H Dipole
Antenna Set

The HP 11966H dipole antenna
set consists of four baluns with
adjustable and removable
stainless steel elements. They
can be used for site-attenuation
measurements as well as for
general EMI testing. Included
are a mounting clamp, five-meter
measuring tape, ruler and
storage case.

Frequency Range 28 MHz -1 GHz

Balun 1: 28 - 60 MHz
Balun 2: 60 - 140 MHz
Balun 3: 140 - 400 MHz
Balun 4: 400 - 1000 MHz

Max Contin Power 20 W
VSWR (avg) < 1.6 : 1
Impedance 50

Ω

ConnectorType N female

Frequency Typical Antenna Factor
(MHz) (dB)

30 0.2
40 1.2
50 3.0
60 4.9

Frequency Typical Antenna Factor
(MHz) (dB)

60 4.2
70 5.1
80 6.3
90 8.3
100 9.3
110 10.4
120 11.6
130 11.0
140 12.2

Frequency Typical Antenna Factor
(MHz) (dB)

140 13.0
180 13.7
220 15.7
260 17.7
300 18.3
340 18.8
400 21.5

Frequency Typical Antenna Factor
(MHz) (dB)

400 22.0
500 24.6
600 24.7
700 25.8
800 26.8
900 28.4
1000 28.7

1. All antennas sold by HP are individually calibrated. They include a calibration
certificate showing actual performance data. The antenna factors shown in this
catalog are intended to show typical performance only.

13

Antennas

l

HP 11966K Magnetic
Field Pickup Coil

This antenna is designed
specifically for MIL-STD 462
RE-01 and RE-101 measurements.
The loop is constructed of
aluminum and has 36 turns
of 7 x 41 Litz wire for lower
inductance.

Frequency Range 20 Hz - 50 kHz
Loop Diameter 133 mm (5.25 inches)
Connector Type BNC female

Frequency Typical Antenna Factor
(kHz) (dB)

0.02 84

0.04 78

0.06 74

0.08 72

0.1 70

0.2 64

0.4 58

0.6 54

0.8 52

1.0 50

2.0 44

4.0 38

6.0 34

8.0 32

10.0 30

20.0 25

40.0 24

50.0 23

HP 11967A K06 Cavity
Rejection Networks

The HP 11967A K06 cavity
rejection networks have a
continuously tunable frequency
range from 1 GHz to 10 GHz in
four bands. They also offer low
insertion loss with very sharp
resonances.

Frequency Range 1 GHz - 10 GHz
Rejection 80 dB minimum at tuned

frequency

Insertion Loss 5 dB or less (avg)
Bandwidth 0.2 % of tuned frequency

at 20 dB point and 0.4 %
at 10 dB point

Connector Type N female

HP 11967A K23 Bridged-T
Rejection Networks

The HP 11967A K23 bridged-T
rejection networks are designed
for radio frequency interference
testing according to various
military specifications. The three
networks are passive and contin­uously tunable over the 10 kHz
to 1 GHz frequency range.

Frequency Range Network 1: 10 kHz - 100 MHz

Network 2: 100 MHz - 400 MHz
Network 3: 400 MHz - 1 GHz

Maximum Power 2 kW
Connector Type N female

14

Antennas

HP 11966P
Broadband Antenna

The HP 11966P broadband
antenna covers 30 MHz to 1 GHz.
This broadband antenna removes
the need to change antennas
above 200 MHz when making
radiated EMI measurements.
The antenna’s high power
handling capability makes it
ideal for immunity testing
generating fields of up to
10 volts/meter.

Frequency Range 30 MHz - 1 GHz
Maximum Continuous Power 130 W
VSWR (avg) 2 : 1
Impedance (nominal) 50

Ω

Connector Type N (female)

Note: Tripod not included

Frequency Typical Antenna Factor
(MHz) (dB)

30 18.2
50 8.0
70 5.0

90 8.0
100 9.5
150 11.0
200 10.0
250 12.0
300 13.0
350 14.5
400 16.2
450 16.7
500 18.5
550 19.0
600 19.8
650 20.4
700 21.1
750 22.0
800 23.0
850 23.0
900 23.0
950 25.0

1000 25.0

1. All antennas sold by HP are individually calibrated. They include a calibration
certificate showing actual performance data. The antenna factors shown in this
catalog are intended to show typical performance only.

15

EMC Accessory Application Guide

Commercial Measurements

Agency Test Frequency Range Recommended Accessories

FCC Part 15

conducted 450 kHz - 30 MHz HP 11967D or E LISN
radiated 30 MHz - 300 MHz HP 11966C Biconical Antenna

200 MHz - 1 GHz HP 11966D Log Periodic Antenna

or

28 MHz - 1 GHz HP 11966H Dipole Antenna Set

1

HP 11966P Broadband Antenna

200 MHz - 5 GHz HP 11966N Log Periodic Antenna

VDE 0871, 0875

conducted 10 kHz - 30 MHz HP 11967D or E LISN
radiated 10 kHz - 30 MHz HP 11966A Active Loop

30 MHz - 300 MHz HP 11966C Biconical Antenna
200 MHz - 1 GHz HP 11966D Log Periodic Antenna

or

28 MHz - 1 GHz HP 11966H Dipole Antenna Set

1

CISPR 14

power 30 MHz - 300 MHz HP 11967A KO5 Absorbing Clamp
22

conducted 150 kHz - 30 MHz HP 11967D or E LISN
radiated 28 MHz - 1 GHz HP 11966H Dipole Antenna Set

1

VCCI

conducted 150 kHz - 30 MHz HP 11967D or E LISN
radiated 30 MHz - 300 MHz HP 11966C Biconical Antenna

200 MHz - 1 GHz HP 11966D Log Periodic Antenna

or

28 MHz - 1 GHz HP 11966H Dipole Antenna Set

1

CENELEC EN 55014

conducted 150 kHz - 30 MHz HP 11967D or E LISN
radiated 30 MHz - 300 MHz HP 11966C Biconical Antenna

EN 55022
conducted 150 kHz - 30 MHz HP 11967D or E LISN

radiated 30 MHz - 1 GHz HP 11966C Biconical Antenna

HP 11966D Log Periodic Antenna
EN 55011
conducted 150 kHz - 30 MHz HP 11967D or E LISN

radiated 150 kHz - 1 GHz HP 11966A Active Loop Antenna

HP 11966C Biconical Antenna

HP 11966D Log Periodic Antenna

1. These adjustable dipole antennas are particularly suited for making accurate site attenuation measurements, such as those
outlined in the FCC’s OST-55 bulletin. They can also be used for making measurements of emissions from the equipment under
test (EUT). Broadband antennas, such as biconical and log periodic antennas, are typically used for emissions measurements of
the EUT because of their ease of use.

16

Military Measurements

Agency Test Frequency Range Recommended Accessories

MIL-STD 461/462

CE-01 30 Hz - 15 kHz HP 11967B Current Probe

0160-6683 10 µf Capacitor

CE-03 15 kHz - 50 MHz HP 11967A Current Probe

0160-6683 10 µf Capacitor
CE-06 10 kHz - 12.4 GHz 11729-60014 Preamplifier
RE-01 30 Hz - 15 kHz HP 11966K Magnetic Coil
RE-02 14 kHz - 30 MHz HP 11966B Active Rod

30 MHz - 300 MHz HP 11966C Biconical Antenna
200 MHz - 1 GHz HP 11966D Log Periodic Antenna

2

or

HP 11966F Conical Spiral Antenna

1 GHz - 10 GHz HP 11966E Waveguide Horn Antenna

or
HP 11966G Conical Spiral Antenna
HP 8449B Preamplifier

3

RE-03 10 kHz - 30 MHz HP 11966B Active Rod

30 MHz - 300 MHz HP 11966C Biconical Antenna
200 MHz - 1 GHz HP 11966D Log Periodic Antenna

or
HP 11966F Conical Spiral Antenna

1 GHz - 10 GHz HP 11966G Conical Spiral Antenna
1 GHz - 18 GHz HP 11966E Waveguide Horn Antenna
1 GHz - 26.5 GHz HP 8449B Preamplifier

3

CE-101 30 Hz - 10 kHz HP 11967B Current Probe

0160-668310 µf Capacitor

CE-102 10 kHz - 10 MHz HP 11967D or E LISN
RE-101 30 Hz - 50 kHz HP 11966K Magnetic Field Pickup Coil
RE-102 10 kHz - 30 MHz HP 11966B Active Rod

30 MHz - 200 MHz HP 11966C Biconical Antenna
200 MHz - 2 GHz HP 11966I Horn Antenna
25 Hz - 18 GHz HP 11966E Double-ridged Horn Antenna

2. MIL-STD radiated emission 02 tests can be performed with either linearly
polarized antennas, such as the log periodic, or circularly polarized antennas, such as
the conical spiral. Linear antennas offer slightly better gain and antenna factor, but
they require separate scans over the full frequency range once in horizontal polarization
and again in vertical polarization. While circularly polarized antennas typically are
slightly less sensitive, they allow the measurement to be made in a single scan
because they can receive signals that have either horizontal or vertical polarization.

3. The HP 8449B microwave preamplifier offers improved sensitivity for microwave
emissions measurements. With improved sensitivity, wider receiver bandwidths can
be used, result in faster measurement times.

17

Antenna Masts

HP 11968B Manual Antenna
Positioning Mast

The 11968B is a lightweight,
portable, antenna positioning
mast. Antenna height is controlled
with a manual winch. The cross
boom can be rotated 90 degrees
to enable measurements in
horizontal and vertical polarization.
This low-cost unit is ideal for
precompliance testing and is
also suitable for final qualification
measurements.

Mast Height 4.4 m (14.4 ft)
Maximum Load at Tip
of Cross-Boom 11.3 kg (25 Ib)

18

Equipment Testing Turntable

HP 11968E
Manual Equipment
Test Turntable

This manually operated, non­metallic turntable is suitable for
both indoor and outdoor use.
It is especially useful in cost
sensitive applications, such as
precompliance testing.

Diameter 1.2 m (14 ft)
Height 76 mm (3 in)
Maximum Load 455 kg (1000 Ib)

19

HP 85876B Commercial
Radiated EMI
Measurement Software

The HP 85876B commercial
EMI measurement software
runs in Microsoft® 3.1 or later,
Windows 95 or Windows NT 4.0
PC computing platform. It
contains sophisticated
measurement algorithms and
automation capabilities that can
help you increase your EMI test
throughput. A built-in report
generator enables you to port
graphics and data to popular
word processing and spread­sheet programs. This software is
compatable with the HP 8542E,
8522E, 8546A, 85462A, 8571A,
8572A and other 8566B-based
systems. The software also
supports tower and turntable
controllers Sunol Sciences CON 94
revision 3.1, EMCO 1050, 1060
and 2090 revision 2.0 or later,
and Deisel HD100 revision 5.5.

HP 11968A K07
Shielded Room Kit

The HP 11968A K07 shielded
room kit provides the cables and
bulkhead connector to interface
either the HP 11968A antenna
mast or the HP 11968D turntable
inside a shielded room to the
controllers outside the room.

HP 11961A
EMI Measurement Software

Performs radiated and
conducted emissions
measurements automatically.
Measurements are corrected for
transducer losses and system
gains. Use the report generation
capabilities to document
measurement results.

HP 85878A
EMI Report Generator

Link the power of HP EMC
analyzers or EMI receivers to
your PC. Archive and view
displays, measurement lists,
graphs and more. Generate
reports automatically.

20

Cables

l

HP 11966L

This 10 meter (32.8 ft) antenna
cable is constructed of RG-214/U
coaxial cable with type-N male
connectors at both ends.

HP 11966M

This 10 meter (32.8 ft) antenna
cable is constructed of RG-223/U
coaxial cable with type-BNC
male connectors at both ends.

HP 11966A K47

Five meter low-loss cable with
APC 3.5 male connectors.

HP 11966A K48

Ten meter low-loss cable with
APC 3.5 male connectors.

HP 11500A Cable

Six foot long RG-214/U cable
with type-N connectors.

HP 11500F Cable

150 centimeter cable with
APC 3.5 male connector.

8120-1840

122 centimeter (48 inches) coaxial
cable with type-BNC male
connectors at both ends.

Limiters

HP 11947A
Transient Limiter

In precompliance applications
where a spectrum analyzer is
used for measurements instead
of an EMI receiver, it is always
a good idea to use a transient
limiter. Transient limiters
protect the spectrum analyzer
input from damage caused by
high-level transients from line
impedance stabilization
networks (LISNs) during EMI
testing for conducted emissions.

Frequency Range 9 kHz - 200 MHz
Insertion Loss 10 dB
Maximum Input Level Continuous: 2.5 W (+34 dBm)

Pulse: 10 kW for 10 µsec
DC: ±12 V

1. Other custom cable lengths and types are available. For more information,

consult your local HP sales representative.

21

Preamplifiers

HP 8447F Option H64
Dual Preamplifier

This dual preamplifier improves
receiver and spectrum analyzer
sensitivity. It is ideally suited for
use with the HP 11940A and
11941A close-field probes to
detect low-level emissions from
a device under test. Radiated
emission measurements using a
spectrum analyzer and antenna
are improved by the increased
sensitivity that this unit offers.

Band 1 Band 2

Frequency Range 9 kHz - 50 MHz 100 kHz - 1.3 GHz
Noise Figure < 7.0 dB 8.5 dB
Gain 28 dB 26 dB
Gain Flatness ±2.0 dB ±1.5 dB
Connector Type N female N female

11729-60014
Low Noise Preamplifier

This amplifier provides the
sensitivity needed for MIL-STD
461C CE-06 receiver/transmitter
key-up testing.

Frequency Range 10 Hz - 25 MHz
Gain 40 dB
Power Requirements +24 V DC
Connector Type SMC female

HP 8449B
Microwave Preamplifier

A high-gain, low-noise preampli­fier to provide additional sensiti­vity for MIL-STD radiated
measurements.

Frequency Range 1 GHz - 26.5 GHz
Noise Figure 1.0 - 12.5 GHz 8.5 dB

12.5 - 22.0 GHz 12.5 dB

22.0 - 26.5 GHz 14.5 dB

Minimum Gain

23.5 dB

Gain Flatness 1.0 - 26.5 GHz ± 4.5 dB

2.0 - 22.0 GHz ± 3.5 dB

Connector Type APC - 3.5 female

22

Magnetic Field Probes

HP 11940A and 11941A
Close Field Probes

These hand-held probes are
specially designed to measure
magnetic field radiation from
surface currents, slots, cables,
and ICs for EMC diagnostic and
troubleshooting measurements.
Their unique design results in a
high level of electric field rejection.
This significantly reduces errors
allowing calibrated and repeatable
measurements. Each probe is
calibrated and comes with a
two-meter, RG-223 coaxial cable,
an SMA(f) to Type-N(m) adapter,
and an SMA(f) to BNC(m) adapter.

Frequency Range 11940A: 30 MHz - 1 GHz

11941A: 9 kHz - 30 MHz

Maximum Input Power 0.5 W
Temperature Range Variation over 0 °C to + 40 °C
Dielectric Breakdown ± 1 dB, typical
Connector SMA, replaceable barrel
VSWR < 3 : 1, typical for 11940A only
Antenna Factor Accuracy Individually calibrated to

within ± 2 dB in a 377

Ω

field impedance

HP 11945A
Close Field Probe Set

The HP 11945A close field probe
set includes both the 11940A
and 11941A probes to provide
full coverage from 9 kHz to 1 GHz.
This set provides a powerful
measurement tool for electrical
and mechanical designers who
want to search for and eliminate
sources of interference from their
products early in the design
process. Option E51 adds the
HP 8447F Option H64 dual
preamplifier, a 36 inch (914 mm)
Type-N cable and a carrying bag
to store and protect the entire set
of probes, preamplifier, and cables.

23

Tripods

HP 11968C Antenna Tripod

The HP 11968C is a non-metallic
tripod made of linen phenolic
and delrin to minimize unwanted
reflections in the test environment.

24

Misc. EMC Accessories

HP 85685A RF Preselector

The HP 85685A RF preselector
is designed to operate with the
HP 8566B and 8568B spectrum
analyzers. The RF preselector
adds tracking filters to reduce
overloading from out-of-band
signal and preamplifiers for
improved system sensitivity
over the 20 Hz to 2 GHz frequency
range. The HP 85685A RF
preselector has two inputs,
20 Hz to 50 MHz and 20 MHz to
2 GHz. There is also a bypass mode
which is DC to 18 GHz. Input 1
has a built-in transient limiter
for protection from transients
generated by line impedence
stabilization networks (LISN).

The RF preselector is fully
programmable over the
HP-IB (IEEE-488).

Input Specifications

Input 1 Input 2

Frequency Range 20 Hz - 50 MHz 20 MHz - 2 GHz

Bypass DC to 18 GHz

Connector Type BNC (50 Ω) Type-N (50 Ω)
Fuse Blow Time < 0.1 sec for > +35 dBm NA

Maximum Save Input Power
Average + 30 dBm (1 W)
Impulsive Signals 100 W peak for 10µ sec pulse

DC Voltage 0 V
Standing Wave Ratio

> 10 dB RFP Atten < 1.5 : 1 < 1 .5 : 1
0 dB Atten < 1.5 : 1 nominal < 2.0 : 1 nominal

RFP Anen Range 0 - 50 dB (10 dB steps)
Preamp Gain 20 dB for 0 dB RFP atten

Output

Comb Generator
Line Spacing 100 kHz, 500 kHz, 1 MHz, 5 MHz (nominal)
Line Amplitude - 40 to -60 dBm

Preselector Filters

Start Frequency Stop Frequency Filter Type
(MHz) (MHz)

0.0 0.0655 Fixed tuned

0.101 0.0756 Fixed tuned

0.074 0.2051 Fixed tuned

0.1975 0.5252 Fixed tuned

0.525 1.0493 Fixed tuned

1.025 2.0736 Fixed tuned

1.96 5.8922 Variable

5.83 17.3643 Variable

17.33 28.8643 Variable

28.73 51.7987 Variable

51.73 97.8673 Variable

97.83 152.356 Variable

152.33 219.4389 Variable

216.33 333.7705 Variable

HP 11960A EMC Preselector

Reduces RF overload from broad­band and out-of-band signals.
Perform near compliant conduc­tor emissions measurements.
Improve radiated emission
measurement sensitivity. The
HP 11960A has a 30 dB gain
amplifier built-in.

25

Misc. EMC Accessories

HP 85650A Quasi-Peak
Adapter

The HP 85650A quasi-peak
adapter is an accessory used
with the HP 8566B or 8568B
spectrum analyzers for perform­ing quasi-peak measurements
as recommended by CISPR.
These include the correct 6 dB
band- widths (200 Hz, 9 kHz,
120 kHz) and the specified
detector charge and discharge
time constants.

The bypass mode returns the
spectrum analyzer back to
standard operation unaffected
by the quasi-peak adapter. In
the normal mode the three
CISPR bandwidths are avail­able and the quasi-peak detector
can be turned on and off.

There is a built-in speaker and
phone jack for monitoring
signals.

The HP 85650A provides nine
form C (SPDT) auxilliary switches
can be used with external power
supplies to switch coax relays,
DUT power, or your individual
switching needs. Six switches
are multiplexed such that when
one is on five are off.

All functions are controlled over
the HP-IB (IEEE 488) except
volume and line.

Frequency Bandwidth Charge Discharge
Band (MHz) at 6 dB TC (ms) TC (ms)

0.01 - 0.15 200 Hz 45 500

0.15 - 30 9 kHz 1 160
30 - 1000 120 kHz 1 550

Quasi-peak Response to CISPR Pulse (dBµV)
PRF (Hz) 10 to 150 kHz 0.15 to 30 MHz 30 to 1000 MHz

1000 --- 64.5 ±2.5 68.0 ± 2.5
100 64.0 ± 2.5 60.0 ± 1.5 60.0 ± 1.5
60 63.0 ± 2.5 --- --­25 60.0 ± 1.5 --- --­20 --- 53.5 ± 2.5 51.0 ± 2.5
10 56.~± 2.5 50.0 ± 3.0 46.0 ± 3.0
5 52.5 ± 3.0 --- --­2 47.0 ± 3.5 39.5 ± 3.5 34.0 ± 3.5
1 43.0 ± 3.5 37.5 ± 3.5 31.5 ± 3.5
Isolated
Pulse 41.0 ± 3.5 36.5 ± 3.5 28.5 ± 35

Ordering Information

Listed by Hewlett-Packard Model Number

Model Number

HP 11500A
HP 11500F
HP 11940A
HP 11941A
HP 11945A
HP 11947A
HP 11955A
HP 11956A
HP 11960A
HP 11961A
HP 11966A
HP 11966A K12
HP 11966A K24
HP 11966A K30
HP 11966A K38
HP 11966A K40
HP 11966A K47
HP 11966A K48
HP 11966B
HP 11966C
HP 11966D
HP 11966E
HP 11966F
HP 11966G
HP 11966H
HP 11966I
HP 11966J
HP 11966K
HP 11966L
HP 11966M
HP 11966N
HP 11966P
HP 11967A K05
HP 11967A K06
HP 11967A K23
HP 11967A
HP 11967B
HP 11967D
HP 11967E
HP 11968A K07
HP 11968B
HP 11968C
HP 11968E
HP 8447F H64
HP 8449B
HP 85650A
HP 85685A
HP 85876A
HP 85878A
0160-6683
8120-1840
11729-60014

Description

Six foot RG-214U Cable with Type-N Connector
150 cm Cable (APC 3.5 Male Connectors)
Close Field Probe 30 MHz to 1 GHz
Close Field Probe 9 KHz to 30 MHz
Close Field Probe Set
Transient Limiter
Biconical Antenna
Log Periodic Antenna
EMC Preselector
EMI Measurement Software
Active Magnetic Loop Antenna
Passive Loop Set
Biconical Antenna 20 MHz to 300 MHz (2000 Watts)
Passive Rod Antenna
Biconical Antenna 30 MHz to 300 MHz (300 Watts)
Royce Field Site Source
Five Meter Cable (APC 3.5 Male Connector)
Ten Meter Cable (APC 3.5 Male Connector)
Active Monopole Antenna
Biconical Antenna 30 MHz to 300 MHz
Log-Periodic Antenna 200 MHz to 1 GHz
Double-Ridged Waveguide Horn Antenna 1 to 18 GHz
Conical Log Spiral Antenna 200 MHz to 1 GHz
Conical Log Spiral Antenna 1 GHz to 10 GHz
Dipole Antenna Set 28 MHz to 1000 MHz
Horn Antenna 200 MHz to 2 GHz
Horn Antenna 18 GHz to 40 GHz
Magnetic Field Pickup Coil 20 Hz to 50 kHz
Coaxial Cable 10 Meter Type-N
Coaxial Cable 10 Meter BNC
Log Periodic Antenna 200 MHz to 5 GHz
Broadband Antenna
Absorbing Clamp
Cavity Rejection Network
Bridged-T Rejection Networks
Current Probe 15 kHz to 50 MHz
Current Probe 20 Hz to 2 MHz
10 Amp Line Impedance Stabilization Network
25 Amp Line Impedance Stabilization Network
Shielded Room Kit
Manual Antenna Positioning Mast
Antenna Tripod
Manual Equipment Test Turntable
Dual Preamplifier 0.1 to 1300 MHz
Microwave Preamplifier 1 GHz to 26.5 GHz
Quasi-Peak Adapter
RF Preselector
Commercial Radiated EMI Software
EMI Report Generator
10

µ

F Capacitor

122

Centimeter Coaxial Cable

Low Noise Preamplifier

For more information about
Hewlett-Packard test and measure­ment products, applications and
services, and for a current sales
office listing, visit our Web site,
http://www.hp.com/go/tmdir. You
can also contact one of the following
centers and ask for a test and
measurement sales representative.

United States:

Hewlett-Packard Company
Test and Measurement Call Center
P.O. Box 4026
Englewood, CO 80155-4026
1 800 452 4844

Canada:

Hewlett-Packard Canada Ltd.
5150 Spectrum Way
Mississauga, Ontario L4W 5G1
[phone]

Europe:

Hewlett-Packard
European Marketing Centre
P.O. Box 999
1180 AZ Amstelveen
The Netherlands
(31 20) 547 9900

Japan:

Hewlett-Packard Japan Ltd.
Measurement Assistance Center
9-1, Takakura-Cho, Hachioji-Shi,
Tokyo 192, Japan
Tel: [phone]
Fax: [phone]

Latin America:

Hewlett-Packard
Latin American Region Headquarters
5200 Blue Lagoon Drive, 9th Floor
Miami, Florida 33126, U.S.A.
[phone]/4220

Australia/New Zealand:

Hewlett-Packard Australia Ltd.
31-41 Joseph Street
Blackburn, Victoria 3130, Australia
1 800 629 485

Asia Pacific:

Hewlett-Packard Asia Pacific Ltd.
17-21/F Shell Tower, Times Square,
1 Matheson Street, Causeway Bay,
Hong Kong
Tel: [phone]
Fax: [phone]

Prices and Data Subject to Change
Copyright © 1997
Hewlett-Packard Company
Printed in U.S.A. 9/97
5966-1188E