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Printed in the UK September 2004
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Operation and Service Guide
Agilent E4412A and E4413A
Power Sensors
HP Part No.
Part No. E4412-90013
Printed in USA
June 1999
© Copyright 1999-2001 Agilent Technologies, Inc.
Legal
Legal
The information contained in this document is subject to change without notice. Agilent Technologies makes no warranty of any kind with regard to this
material, inclu ding but not limited to, the im plied warr anties of merchantabi lity and fitness for a particular p urpose. Agilent Technologies shall not be liable for errors conta in ed herein or for incidental or consequential damages in
connection with the furnishing, performance, or use of this material.
Notice - Hewlett-Packard to Agilent
Technologies Transition
This documentation supports a product that previously shipped under the HewlettPackard company brand name. The brand name has now been changed to Agilent
Technologies. The two products are functionally identical, only our name has
changed. The document still includes references to Hewlett-Packard products, some
of which have been transitioned to Agilent Technologies.
2
Safety In formation
Safety Information
WARNING: Warning denotes a hazard. It calls attention to a procedure which, if not
correctly performed or adhered to, could result in injury or loss of life. Do not
proceed beyond a warning note until the indicated conditions are fully
understood and met.
CAUTION: Caution denotes a hazard. It calls attention to a procedure that, if not correctly
performed or adhered to, would resu l t in damage to or destruction of the instrument .
Do not proceed beyond a caution sign until the indicated conditions are fully
understood and met.
CAUTION: This product is designed for use in Installation Category II and Pollution Degree 2.
This instrument has been designed and tested in accordance with IEC Publication 348, Safety Requirements for Electronic Measuring Apparatus, and
has been supplied in a safe condit ion. The instru ction documentation contains
information and warning s which m ust b e foll owed b y the us er to e nsu re saf e
operation and to maintain the instrument in a safe condition.
“CSA” The CSA mark is a registered trademark of the Canadian Standards
Association.
Notice for Germany: Noise Decl ar at ion LpA < 70 dB am Arbeitsplatz (operator position) no rmaler Bet rieb (nor mal posit ion) nach DIN 456 35 T. 19 ( per
ISO 7779).
3
Safety Information
4
1
Operation and Service Guide
5
Operation and Service Guide
Figure 1 E4412A and E4413A Power Sensors (Formerly ECP-E18A
and ECP-E26A, Respectively)
6
Operation and Service Guide
General Information
General Information
This operation and service guide contains information about initial inspection, operation, perf ormance test s, troublesh ooting and r epair of t he E4412A
and E4413A power sensors.
Warranty
The power sensors are warranted and certified as indicated on the inside
cover of this manual.
Instruments Covered by Manual
These instruments have a two-part serial number: the prefix (two letters and
the first four numbers), and the suffix (the last four numbers). The two letters
identify the country in which the unit was manufactured. The four numbers
of the prefix are a code identifying the date of the last major design change
incorporated in your Agile nt Technologies product. The four-digit suf fix i s a
sequential number and , coupl ed with t he pre fix, prov ides a uniqu e i denti fica tion for each uni t produced. The contents of this manual a pply directly to all
serial numbers unless otherwise indicated
Description
The E4412A and E4413A power sensors are diode power sensors. They are
intended for measurement of CW microwave power levels in a wide
dynamic range from
E4412A measures at frequencies from 10 MHz to 18.0 GHz. The E4413A
measures at frequencies from 50 MHz to 26.5 GHz. These are high-speed
power sensors, and do not incorporate narrow-bandwidth averaging used in
average-power sensors. Signals with digital, pulse, or other forms of amplitude modulation may introduce measurement errors. Multi-tone signals
(containing multiple frequency components), or signals with significant harmonic content (>
levels. (Specifications for the power sensors are in Table 1.)
−70 dBm to +20 dBm (100 pW to 100 mW). The
−45 dBc) may introduce measurement er rors at hi gh power
7
Operation and Service Guide
General Information
These power sensors measure CW power, displayed on a compatible power
meter in logarithmic ( dBm or dB) or linear (Watts or %) measurement uni ts.
The E4413A is shipped with a 3.5-mm to Type-N adapter, part number
08485-60005.
NOTE: The E4412A and E4413A power sensors are compatible ONLY with the newer
E44XX-Series power meters. They are NOT compatible with the earlier 430-Series,
E1416A, or 70100A power meters.
CAUTION: The E4412A and E4413A power sensors are extremely static- sensitive. Do not open
the power sensor unless you and the power sensor are at a static-free workstation.
Specifications
The specifications listed in Table 1 are the performance standards or limits
against which the power sensor may be tested. These spe cificat ions are val id
ONLY after proper calibration of the power meter. Refer to the Calibration
Procedure Using Agilent E-Series Power Sensors in the E4418A or the
Agilent E4419A Power Meter User’s Guide.
8
Table 1 E4412A and E4413A Specifications
Limits Comments
Freque n c y Range E4412A: 10 MHz to 18 GHz
E4413A: 50 MHz to 26.5 GHz
Operation and Service Guide
General Information
Power Range
Impedance 50 ohm nominal
Connector T ype E4412A: Type-N (male)
Maximum Standing Wave Ratio
(SWR) and Reflection Coefficient (Rho)b SWR Rho Return Loss (dB)
E4412A
10 MHz to <30 MHz 1.22 0.099 20.08
30 MHz to <2 GHz 1.15 0.070 23.13
2 GHz to <6 GHz 1.17 0.078 22.12
6 GHz to <11 GHz 1.20 0.091 20.82
11 GHz to <18 GHz 1.27 0.119 18.42
E4413A
50 MHz to <100 MHz 1.21 0.095 20.45
100 MHz to <8 GHz 1.19 0.087 21.23
70 dBm to +20 dBm (100 pW to
−
100 mW)
E4413A: 3.5-mm (male)
8 GHz to <18 GHz 1.21 0.095 20.45
18 GHz to 26.5 GHz 1.26 0.115 18.79
Maximum Power 200 mW peak (+23 dBm)
200 mW average (+23 dBm)
Zero Set ±50 pW
9
Operation and Service Guide
General Information
Table 1 E4412A and E4413A Specifications
Limits Comments
Power Linearity
ab
25 ± 5°C0 to 55
100 pW to 10 mW ±3%
10 mW to 100 mW ±4.5%
Operating Temperature 0 to 55°C
Net Weight
E4412A 0.47 kg (1.0 4 lb)
E4413A 0.45 kg (1.0 0 lb)
Dimensions
E4412A Length: 130 mm (5.1 in)
E4413A Length: 102 mm (4.0 in)
Width: 38 mm (1.5 in) Same for both models
C (After calibration at
°
0 dBm at ambient
temperature)
7%
±
10% +10 dBm to +20 dBm
±
70 dBm to +10 dBm
−
Height: 30 mm (1.2 in) Same for both models
a. Limits are in percent of power in Watts. See Figure 2 for relative power measurement.
b. Specifications apply to instruments with serial prefix US3848 and above. For earlier instruments,
refer to Appendix A.
10
+20
Operation and Service Guide
General Information
+10
+6
−20
−35
Power Level Being Measured (dBm)
−70
A
± 6%
0
± 3%
B
± 1%
−35−70 +20
−25
−20
Power Level Used as Reference (dBm)
0
Figure 2 Relative Mode Power Measurement Linearity
with Power Meter/Sensor at 25° C (Typical)
The chart in Figure 2 shows the typical uncertainty in making a relative
power measurement with the E44XX-Series power meter in the Rel (relative) mode. In a relati ve measur ement, t wo power l evels a re compar ed usi ng
a single sensor. The typical measurement uncertainty can be found by drawing a vertical line at the power lev el used as a reference, and a ho rizontal line
at the power being measured. The region where these two lines intersect
shows the typical unce rtai nty. This assumes that the reference power an d th e
measured power are at the same frequency, and neglects errors due to zero
set, zero drift, and noise. It also assumes no change in mismatch when mea-
11
Operation and Service Guide
General Information
suring the “Power level used as reference” and the “Power level being measured.” This chart illustrates that the best relative power measurement
accuracy is obtained when the reference and the measured power levels are
equal to, or less than,
−20 dBm. Care in choosing the power levels can yield
improved measurement accuracy. Example A illustrates a relative gain
(amplifier measurement) and example B illustrates a relative loss (insertion
loss measurement).
EXAMPLE A (Amplifier Gain Measurement):
Input power (reference) =
tive gain is +41 dB. The chart indicates a typical error of
sponds to +0.25 dB/
−35 dBm; power measured = +6 dBm, so the rela-
±6%, which corre-
−0.27 dB uncertainty in the gain measurement.
EXAMPLE B (Insertion Loss Measurement):
Reference power =
insertion loss of 10 dB. The chart indicates a typical error of
corresponds to
−25 dBm; power measured = −35 dBm, for the c ase of an
±1%, whi c h
± 0.04 dB uncertainty in the measurement.
Calibration Factor (CF) and Reflection Coefficient (Rho)
Calibration factor and reflection coefficient data are given at 1 GHz increments on a data sheet included with the power sensor. This data is unique to
each sensor. If you have more than one sensor, match the serial number on
the data sheet with the seria l number on the powe r senso r you ar e using. The
CF corrects for the frequency response of the sensor. The power meter automatically reads the CF data stored in the sensor and uses it to make the corrections.
Reflection Coeff icient ( Rho, or
formula:
SWR = (1+ρ)/(1-ρ)
ρ) relates to SWR according to the following
Maximum uncertainties of the CF data are listed in Table 2 for the E4412A
power sensor, and in Table 3 for the E4413A power sensor. The uncertainty
analysis for the calibration of the sensors was done in accordance with the
ISO/TAG4 Guide. The uncertainty data reported on the calibration certificate is the expanded uncertainty with 95% confidence level and a coverage
factor of 2.
12
Operation and Service Guide
Additionally, at frequencies other than the reference frequency, for measurements above 0 dBm include 0.5%/dB high power calibration factor uncertainty.
Table 2 E4412A Calibration Factor Uncertainty at 1mW (0 dBm)
General Information
Frequency
10 MHz 1.8
30 MHz 1.8
50 MHz Reference
100 MHz 1.8
1.0 GHz 1.8
2.0 GHz 2.4
4.0 GHz 2.4
6.0 GHz 2.4
8.0 GHz 2.4
10.0 GHz 2.4
11.0 GHz 2.4
12.0 GHz 2.4
14.0 GHz 2.4
16.0 GHz 2.6
Uncertainty (%)
a
18.0 GHz 2.6
a. Specifications apply to instruments with
serial prefix US3848 and above. For earier
instruments, refer to Appendix A.
13
Operation and Service Guide
General Information
Table 3 E4413A Calibration Factor Uncertainty at 1mW (0 dBm)
Frequency
Uncertainty (%)
50 MHz Reference
100 MHz 1.8
1.0 GHz 1.8
2.0 GHz 2.4
4.0 GHz 2.4
6.0 GHz 2.4
8.0 GHz 2.4
10.0 GHz 2.6
12.0 GHz 2.8
14.0 GHz 2.8
16.0 GHz 2.8
17.0 GHz 2.8
18.0 GHz 2.8
19.0 GHz 3.0
a
20.0 GHz 3.0
22.0 GHz 3.0
24.0 GHz 3.0
26.0 GHz 3.0
26.5 GHz 3.0
a. Specifications apply to instruments with
serial prefix US3848 and above. For earlier
instruments, refer to Appendix A.
14
Operation and Service Guide
General Information
Installation
Initial Inspection
Inspect the shipping con tai ne r for damage. If the shipping conta ine r or packaging material is damaged, it should be kept until the contents of the shipment have been checked mechanically and electrically. If there is
mechanical damage or i f the i nstrument does not pas s t he performance tests,
notify the nearest Agilent Technologies office. Keep the damaged shipping
materials (if any) for inspection by the carrier and a Agilent Technologies
representative.
Interconnections
Connect one end of the 11730A sensor cable to the E4412A or E4413A
power sensor and co nnect the other end of the cable to the power meter’s
channel input. Allow a few second s for the power meter to download the
power sensor’s calibration table before making a measurement.
Measurement connector (connects to DUT)
E4412A: Type-N (male)
E4413A: 3.5-mm (male)
A torque wrench should be used to tighten these connectors. Use a 3/4-inch
open-end wrench and torque to 12 in-lb (135 Ncm) for the Type-N connector. Use a 20-mm open-end wrench and torque to 8 in-lb (90 Ncm) for the
3.5-mm connector.
15
Operation and Service Guide
General Information
Storage and Shipment
Environment
The instruments should be s tored in a clea n, dry envir onment. The fol lowing
limitations apply to both storage and shipment:
Temperature
Relative humidity < 95% at 40°C
Altitude < 15,240 metres (50,000 feet)
Original Packaging
55 to +75°C
−
Containers and materials identical to those used in factory packaging are
available through Agilent Technologies offices. If the instrument is being
returned to Agilent Technologies for servicing, attach a tag indicating the
type of service required, return address, model number, and serial number.
Also, mark the container FRAGILE to assure careful handling. In any correspondence, refer to the instrument by model number and serial number.
16
Operation and Service Guide
Operation
Operation
Operating Environment
The operating environment for the power sensor should be within the following limits:
Temperature 0° to 55°C
Relative humidity < 95%
Altitude < 4530 metres (15,000 feet)
Operating Precautions
WARNING: BEFORE CONNECTING THE POWER SENSOR TO OTHER
INSTRUMENTS, ensure that all instruments are connected to the protective
(earth) ground. Any interruption of the protective earth grounding will cause a
potential shock hazard that could result in personal injury and cause damage to
the power sensor.
If the following energy and power levels are exceeded, the power meter system may be damaged.
a Maximum Average Power: 200 mW (+23 dBm)
b Maximum Peak Power: 200 mW (+23 dBm)
Maximum torque at the con nect or sh oul d not exceed 12 in-lb ( 135 Ncm) for
the Type-N connector, or 8 in-lb (90 Ncm) for the 3.5-mm connector to
avoid damage to the connector.
Connect the power sensor by turning only the hex nut portion of the connector. Damage can occur if torque is applied to the power sensor body.
The connector plasti c insulator bea d deteriorat es when contacted by ac etone,
trichloroethylene, carbon tetrachloride, benzene, etc. Refer to Application
Note 326, Principals of Microwave Connector Care (5954-1566) or Microwave Connector Care (08510-90064) for proper cleaning methods.
17
Operation and Service Guide
Operation
Power Meter Calibrations
Follow the calibration procedures given in your power meter manual.
Operating Instructions
The E4412A and E4413A power sensors are compatible ONLY with the
newer E44XX-Series power meters. They are NOT compatible with the earlier 430-Series, E1416A, or 70100A power meters. To operate the power
sensor, refer to the operating instructions in the Agilent E44XX-Series Power
Meter User’s Guide.
18
Operation and Service Guide
Performance Test
Performance Test
Standing Wave Ratio (SWR) and Reflection Coefficient (Rho)
Performance Test
This section does not establish preset SWR test procedures since there are
several test methods and different equipm ent available for testing the SWR
or reflection c oeff icient. Therefore , the a ctual acc uracy of the tes t equipment
must be accounted for when measuring against instrument specifications to
determine a pass or fail condition. The test system used must not exceed the
system Rho uncertainties shown in Table 4 when testing the E4412A, or in
Table 5 when testing the E4413A.
Table 4 Power Sensor SWR and Reflection Coefficient for the E4412A
Frequency
10 MHz to <30 MHz
30 MHz to <2 GHz
2 GHz to <6 GHz
6 GHz to <11 GHz
11 GHz to 18 GHz
a.Specifications apply to instruments with serial prefix US3848 and above. For
earlier instruments, refer to Appendix A.
System Rho
Uncertainty
0.010 0.099
±
0.010 0.070
±
0.010 0.078
±
0.010 0.091
±
0.010 0.119
±
Actual
Measurement
a
Maximum
Rho
19
Operation and Service Guide
Performance Test
Table 5 Power Sensor SWR and Reflection Coef ficient for the E4413A
Frequency
50 MHz to <100 MHz
100 MHz to <8 GHz
8 GHz to <18 GHz
18 GHz to 26.5 GHz
System Rho
Uncertainty
0.010 0.095
±
0.010 0.087
±
0.010 0.095
±
0.015 0.115
±
Actual
Measurement
a.Specifications apply to instruments with serial prefix US3848 and above. For
earlier instruments, refer to Appendix A.
a
Maximum
Rho
20
Operation and Service Guide
Replaceable Parts
Replaceable Parts
Table 6 is a list of replaceable parts. Figure 3 is the illustrated parts breakdown (IPB) that identifies all of the replaceable parts. To order a part, quote
the Agilent Technologies part number, specify the quantity required, and
address the order to the nearest Agilent Technologies office.
NOTE: Within the USA, it is better to order directly from the Agilent Parts Center in
Roseville, California. Ask your nearest Agilent office for information and forms for
the “Direct Mail Order System.” Also your nearest Agilent office can supp ly toll free
telephone numbers for ordering parts and supplies.
21
Operation and Service Guide
Replaceable Parts
Figure 3 Illustrated Parts Break down
22
Table 6 Replaceable Parts
Operation and Service Guide
Replaceable Parts
Reference
Designation
A1/A2
E4412A
A1/A2
E4412A
A1/A2
E4413A
A1/A2
E4413A
MP1 5041-9160 2 SHELL-PLASTIC
MP2 5041-9160 SHELL-PLASTIC
MP3 08481-20011 2 CHASSIS
Part
Number
E4412-60006 1 SENSOR MODULE
E4412-69006 1 RESTORED SENSOR
E4413-60003 1 SENSOR MODULE
E4413-69003 1 RESTORED SENSOR
08485-60005 1 ADAPTOR, 3.5-mm to Type-N
Qty Description
(E4412A)
MODULE (E4412A)
(E4413A)
MODULE (E4413A)
CHASSIS PARTS
MP4 08481-20011 CHASSIS
MP8 08481-00002 2 SHIELD
MP9 08481-00002 SHIELD
MP26 E4412-80002 1 LABEL, ID E4412A
MP26 E4413-80003 1 LABEL, ID E4413A
MP27 7121-7389 2 LABEL, POWER SENSOR
MP30 7121-7388 1 LABEL, CAL/ESD
MP31 00346-80011 1 LABEL, CAUTION
23
Operation and Service Guide
Service
Service
Service instructions consist of principles of operation, troubleshooting, and
repairs.
Principles of Operation
The A1 Bulkhead assembly provides a 50 ohm load to th e RF signal appl ied
to the power sensor. A diode assembly in the bulkhead rectifies the applied
RF to produce a dc voltage which varies with the RF power across the 50
ohm load. Thus the voltage varies with the RF power dissipated in the load.
With maximum specified RF power (100 mW) the dc voltage is approximately 1V.
The low-level dc voltage from the bulkhead assembly must be amplified
before it can be transferred on standard cables to the power meter. The
amplification is pr ovided b y an inpu t ampl ifier assembl y which co nsist s of a
chopper (sampling gate) and an input a mplifier. The chopper circuit converts
the dc voltage to an ac voltage. To do this, the chopper uses two field effect
transistors (FETs), A2Q1 and A2Q2, controlled by a 440 Hz square wave
generated by the power meter. The amplitude of the sampling gate output
(drain of A2Q1, s ource of A2 Q2) is a 4 40 Hz squa re wav e which v aries with
the RF power input. The 440 Hz ac output is applied to the input amplifier
A2Q3 which provides the input to the first amplifier stage in the power
meter.
The E44XX-Series power meter automatically detects when an E44XXSeries power sensor is connecte d and downloads t he correc tion data fr om the
sensor’s EEPROM. This co nfigur es th e power met er t o opera te over the + 20
dBm to
data applied.
−70 dBm power range wit h that particular sensor’ s u nique cor rection
Troubleshooting
Trouble shooting inf ormati on is intende d to first iso late th e power sensor, the
cable, or the power meter as the defective component. When the power sensor is isolated, a “Restored Sensor Module” must be used for repair. See
Table 6.
24
Operation and Service Guide
Service
If error message 241 or 310 is indicated on the power meter, suspect a failed
power sensor. If no error message is displayed, but a problem occurs when
making a measurement, try replacing the cable from the power meter to the
power sensor . I f the proble m still exists , try using a di ffe rent power sensor to
determine if the problem is in the power meter or in the power sensor.
CAUTION: Electrostatic discharge will render the power sensor inoperative. Do not, under any
circumstances, open the power sensor unless you and the power sensor are in a static
free environment.
Repair of Defective Sensor
There are no serviceabl e parts insi de the E44XX-Series se nsors. If the senso r
is defective, repla ce the ent ire “modu le” with the app ropri ate “Rest ored Sen sor Module.” See Table 6.
Cleaning
Cleaning Solutions
Keeping in mind its flammable nature; a solution of pure isopropyl or ethyl
alcohol can be used to clean the connector.
Connector Cleaning
CAUTION: The RF connector beads deteriorate when contacted by hydrocarbon compounds
such as acetone, trichloroethylene, carbon tetrachloride, and benzene.
CAUTION: Clean the connector only at a static free workstation. Electrostatic discharge to the
center pin of the connector will render the power sensor inoperat ive.
Clean the connector face using a cotton swab dipped in isopropyl alcohol. If
the swab is too big use a round wooden toothpick wrapped in a lint free cotton cloth dipped in isopropyl alcohol. Refer to Agilent Application Note
326, Principals of Microwave Connector Care (5954-1566) or Microwave
Connector Care (08510-90064) for proper cleaning methods.
25
Operation and Service Guide
Service
Figure 4 Removing Power Sensor Shell
Disassembly Procedure
Disassemble the power sensor by performing the following steps:
CAUTION: Disassemble the power sensor only in a static free workstation. Electrostatic
discharge will render the power sensor inoperative.
1 At the rear of the power sensor, insert the blade of a screwdriver between the plas-
tic shells (Figure 4). To prevent damage to the plastic shells use a screwdriver
blade as wide as the slot between the two shells.
2 Pry alternately at both sides of the connector J1 until the plastic shells are apart.
Remove the shells and the magnetic shields.
Reassembly Procedure
1 Replace the magnetic shields and the plastic shells as shown in Figure 3. Snap the
plastic shells together.
26
Table 7
Operation and Service Guide
Service
Agilent Sales and Service Offices
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(tel) 1 800 829 4444
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Online Assistance: www.agilent.com/find/assist
27
Operation and Service Guide
Service
28
A
Appendix
The following specifications apply to E4412A and E4413A sensors (formerly
ECP-E18A and ECP-E26A, respectively) with a serial prefix below US3848.
A-29
Appendix
Table 8 E4412A and E4413A Specifications (Serial Prefixes Below US3848)
Limits Comments
Freque n c y Range E4412A: 10 MHz to 18 GHz
E4413A: 50 MHz to 26.5 GHz
Power Range
Impedance 50 ohm nominal
Connector Type E4412A: Type-N (male)
Maximum Standing Wave Ratio
(SWR) and Reflection Coefficient (Rho) SWR Rho Return Loss (dB)
E4412A
10 MHz to 30 MHz 1.34 0.145 16.8
30 MHz to 10 GHz 1.22 0.100 20.0
10 GHz to 18 GHz 1.27 0.120 18.4
E4413A
50 MHz to 2 GHz 1.25 0.110 19.2
2 GHz to 18 GHz 1.21 0.095 20.5
18 GHz to 26.5 GHz 1.26 0.115 1 8.8
Maximum Power 200 mW peak (+23 dBm)
70 dBm to +20 dBm (100 pW to
−
100 mW)
E4413A: 3.5-mm (male)
Zero Set
A-30
200 mW average (+23 dBm)
50 pW
±
Table 8 E4412A and E4413A Specifications (Serial Prefixes Below US3848)
Limits Comments
Appendix
Power Linearity
a
25 ± 5°C0 to 55
C (After calibration at
°
0 dBm at ambient
temperature)
100 pW to 10 mW ±4%
10 mW to 100 mW ±5.5%
8%
±
11% +10 dBm to +20 dBm
±
70 dBm to +10 dBm
−
Operating Temperature 0 to 55°C
Net Weight
E4412A 0.47 kg (1.04 lb)
E4413A 0.45 kg (1.00 lb )
Dimensions
E4412A Length: 130 mm (5.1 in)
E4413A Length: 102 mm (4.0 in)
Width: 38 mm (1.5 in) Same for both models
Height: 30 mm (1.2 in) Same for both models
a. Limits are in percent of power in Watts. See Figure 2 for relative power measurement.
A-31
Appendix
Table 9 E4412A Calibration Factor Uncertainty at 1mW (0 dBm)
(Serial Prefixes Below US3848)
Frequency Uncertainty
10 MHz 2.7%
30 MHz 2.7%
50 MHz Reference
100 MHz 2.7%
1.0 GHz 2.7%
2.0 GHz 3.1%
4.0 GHz 3.1%
6.0 GHz 3.1%
8.0 GHz 3.1%
10.0 GHz 3.1%
11.0 GHz 3.1%
12.0 GHz 3.3%
14.0 GHz 3.3%
16.0 GHz 3.3%
18.0 GHz 3.3%
A-32
Table 10 E4413A Calibration Factor Uncertainty at 1mW (0 dBm)
(Serial Prefixes Below US3848)
Frequency Uncertainty
50 MHz Reference
100 MHz 2.7%
1.0 GHz 2.7%
2.0 GHz 3.1%
4.0 GHz 3.1%
6.0 GHz 3.1%
8.0 GHz 3.1%
10.0 GHz 3.1%
12.0 GHz 3.3%
14.0 GHz 3.3%
Appendix
16.0 GHz 3.3%
17.0 GHz 3.3%
18.0 GHz 3.5%
20.0 GHz 3.5%
22.0 GHz 3.5%
24.0 GHz 3.5%
26.0 GHz 3.5%
26.5 GHz 3.5%
A-33
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