test report - maxim integrated - analog, linear, & … · requirements of rtca/do-160g. 3.4...
TRANSCRIPT
Nemko USA, Inc.
2210 Faraday Ave, Suite 150
Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
TEST REPORT
PER RCTA/D0-160G
FOR THE DS1921G-F5#, DS1922L-F5#, DS1925L-F5#
DATA LOGGERS
PREPARED FOR
Maxim Integrated Products
14460 MAXIM DRIVE
DALLAS, TX 75244 USA
REVISION 1
PREPARED ON JULY 11, 2016
REPORT NUMBER 2016 07313140 RTCA R1
PROJECT NUMBER: 313140
QUOTE NUMBER: Q102104018
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
REVISION DATE DOCUMENT NAME DOCUMENT # PAGE
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DOCUMENT HISTORY
REVISION DATE COMMENTS
0 July 11, 2016 Prepared By: Lan Sayasane
0 June 26, 2007 Released By: Jim Morris
1 July 19, 2007 Correct Model # Jim Morris
NOTE: Nemko USA, Inc. hereby makes the following statements so as to conform to the Requirements of EN
17025 "General Criteria For the Operation Of Test Laboratories":
The units described in this report were received at Nemko USA, Inc.'s facilities on July 8, 2016. Testing
was performed on July 11, 2016.
The Test Results reported herein apply only to the Unit actually tested, and to substantially identical Units.
This Report is the property of Nemko USA, Inc., and shall not be reproduced, except in full, without prior written
approval of Nemko USA, Inc. However, all ownership rights are hereby returned unconditionally to Independent
Testing Laboratories Inc., and approval is hereby granted to Independent Testing Laboratories Inc. and its employees
and agents to reproduce all or part of this report for any legitimate business purpose without further reference to
Nemko USA, Inc.
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
REVISION DATE DOCUMENT NAME DOCUMENT # PAGE
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TABLE OF CONTENTS
1. ADMINISTRATIVE DATA AND TEST SUMMARY ........................................................................................ 6
1.1 Administrative Data ....................................................................................................................................... 6
1.2 Test Summary ................................................................................................................................................ 7
1.3 Emissions Test Summary ............................................................................................................................... 7
2. SYSTEM CONFIGURATION .............................................................................................................................. 8
2.1 System Components and Power Cables ......................................................................................................... 8
2.2 Device Interconnection and I/O Cables ......................................................................................................... 8
2.3 Design Modifications for Compliance ........................................................................................................... 8
3. TEST SITE INFORMATION ................................................................................................................................ 9
3.1 Ground Plane ................................................................................................................................................. 9
3.2 Anechoic Chamber ......................................................................................................................................... 9
3.3 Detection System ........................................................................................................................................... 9
3.4 Test Equipment .............................................................................................................................................. 9
4. DESCRIPTION OF UUT SET-UP AND MODES OF OPERATION ............................................................. 11
4.1 Test Specifics ............................................................................................................................................... 11
4.2 Modes of Operation during EMC Testing ................................................................................................... 11
4.3 Figure and Picture of actual test Set-up ....................................................................................................... 12
5. BONDING AND EMISSION CONTROL .......................................................................................................... 13
5.1 Bonding Test ................................................................................................................................................ 13 5.1.1 Bonding Test Method 13
5.1.2 Bonding Data Sheets 13
5.1.3 Bonding Photographs 13
5.1.4 Bonding Equipment List 13
5.2 Radiated RF Emissions ................................................................................................................................ 14 5.2.1 Radiated RF Emissions Test Method 14
5.2.2 Radiated RF Emissions Test Data 16
5.2.3 Radiated RF Emissions Photographs 19
5.2.4 Radiated RF Emissions Test Equipment List 22
APPENDIX A – CALIBRATION PROGRAM ...................................................................................................... 23
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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LIST OF FIGURES
FIGURE 4.3-1 UUT TEST SETUP ................................................................................................................................... 12 FIGURE 5.1-1 TEST CONFIGURATION ............................................................................................................................ 15 FIGURE 5.1-2: 100 MHZ – 200 MHZ - VERTICAL ......................................................................................................... 16 FIGURE 5.1-3: 100 MHZ – 200 MHZ - HORIZONTAL ..................................................................................................... 16 FIGURE 5.1-4: 200 MHZ – 960 MHZ - VERTICAL ......................................................................................................... 17 FIGURE 5.1-5: 200 MHZ – 960 MHZ - HORIZONTAL ..................................................................................................... 17 FIGURE 5.1-6: 960 MHZ – 6000 MHZ - VERTICAL ....................................................................................................... 18 FIGURE 5.1-7: 960 MHZ – 6000 MHZ - HORIZONTAL ................................................................................................... 18 FIGURE 5.1-8: 100 MHZ TO 200 MHZ – VERTICAL....................................................................................................... 19 FIGURE 5.1-9: 100 MHZ TO 200 MHZ – HORIZONTAL .................................................................................................. 19 FIGURE 5.1-10: 200 MHZ TO 960 MHZ – VERTICAL..................................................................................................... 20 FIGURE 5.1-11: 200 MHZ TO 960 MHZ – HORIZONTAL ................................................................................................ 20 FIGURE 5.1-12: 960 MHZ TO 6000 MHZ – VERTICAL................................................................................................... 21 FIGURE 5.1-13: 960 MHZ TO 6000 MHZ – HORIZONTAL .............................................................................................. 21
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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CERTIFICATION
The compatibility testing and this report have been prepared by Nemko USA, Inc., an independent
electromagnetic compatibility consulting and test laboratory. Testing was performed Per test methods described
in RCTA/DO-160G.
I certify the data evaluation and equipment configuration herein to be a true and accurate representation of the
sample's immunity and emission characteristics, as of the test date(s), and for the design of the test sample utilized to
compile this report.
James Morris
EMC and Wireless Manager
Nemko USA, Inc., 2210 Faraday Avenue, Suite 150
Carlsbad, CA 92008, USA
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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1. ADMINISTRATIVE DATA AND TEST SUMMARY
1.1 Administrative Data
CLIENT: Maxim Integrated Products
CONTACT: Stewart Merkel
DATE (S) OF TEST: July 11, 2016
EQUIPMENT UNDER TEST (): Data Loggers
Part Number: DS1921G-F5#, DS1922L-F5#, DS1925L-F5#
Serial Number 165EA5, 38C201, 008CFB
Condition Upon Receipt Acceptable
TEST SPECIFICATIONS: Radio Frequency Emissions and Electromagnetic Immunity tests
in accordance with the requirements of RCTA/DO-160G.
Emission Tests
Test
Method
Requirement Description Frequency Range Limit
21.5 RCTA/DO-160G Radiated RF Emissions 100 MHz – 6000 MHz Category H
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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1.2 Test Summary
1.3 Emissions Test Summary
Specification Frequency Range Compliance Status
Section 21.5 100 MHz – 6000 MHz Compliant
Refer to the test results section for further details.
James Morris
EMC and Wireless Manager
Nemko USA, Inc., 2210 Faraday Avenue, Suite 150
Carlsbad, CA 92008, USA
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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2. SYSTEM CONFIGURATION
2.1 System Components and Power Cables
None
2.2 Device Interconnection and I/O Cables
None
2.3 Design Modifications for Compliance
None
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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3. TEST SITE INFORMATION
The test site is located at:
NEMKO USA, Inc.
2210 Faraday Ave., Suite 150
Carlsbad, CA 92008
NEMKO USA is NVLAP certified. The NVLAP Certification is included in Appendix C of this document.
The site is physically located 18 miles Northwest of downtown San Diego. The general area is a valley 1.5
miles east of the Pacific Ocean. The EMI testing was under the guidance of National Association of Radio and
Telecommunication Engineers (NARTE) personnel.
3.1 Ground Plane
The emissions and susceptibility portions of the testing was performed on a ground plane. The ground plane
consisted of a 8’ x 3’ x 1/8” thick copper plate mounted on a wooden bench and is connected to the ground rod
via a copper bus bar 2’ wide and 0.25" thick. The DC bonding resistance between the ground plane and ground
was less than 2.5m. The Unit Under Test (UUT) and LISNs were bonded to the ground plane.
3.2 Anechoic Chamber
The radiated and conducted emissions tests were conducted inside a semi anechoic chamber which measures 20'
x 12' x 10'. Carbon-loaded cones provide RF dissipation. Radiated susceptibility tests were conducted inside a
semi anechoic chamber which measures 20' x 12' x 10’. Power capability of the chamber includes 50 amps at
100VDC, 30 amps per phase of 120 VAC at 400 Hz, and 50 amps of up to 250 VAC at up to 60 Hz.
3.3 Detection System
The automated detection system used in emission testing consist of a spectrum Analyzer controlled by a
computer. Preamplifiers used where necessary and where they are used an appropriate notation is made in the
relevant section of the report. Commercially available EMI measurement software Total Integrated Laboratory
Environment (TILE) was used in the performance of these measurements. In this software package, the
bandwidths and measurement times are user-selectable, and the bandwidths and sweep times were per the
requirements of RTCA/DO-160G.
3.4 Test Equipment
NEMKO USA, Inc. operates a comprehensive Periodic Calibration Program in order to ensure the validity of all
test data. NEMKO USA’s Periodic Calibration Program is fully compliant to the requirements of NVLAP
Policy Guide PG-1-1988, ANSI/NCSL Z540-1 (1994), ISO 10012-1 (1993-05-01), ISO Standard 17025, ISO-
9000 and EN 45001. NEMKO USA, Inc.’s calibration program therefore meets or exceeds the US national
commercial and military requirements [N.B. ANSI/NCSL Z540-1 (1994) replaces MIL-STD-45662A].
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
REVISION DATE DOCUMENT NAME DOCUMENT # PAGE
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Specifically, all of NEMKO USA’s primary reference standard devices (e.g. vector voltmeters, multimeters,
attenuators and terminations, RF power meters and their detector heads, oscilloscope mainframes and plug-ins,
spectrum analyzers, RF preselectors, quasi-peak adapters, interference analyzers, impulse generators, signal
generators and pulse/function generators, field-strength meters and their detector heads, etc.) and certain
secondary standard devices are periodically recalibrated by:
A NEMKO USA-approved independent (third party) metrology laboratory that uses NIST-traceable
standards and that is ISO Standard 17025-accredited as a calibration laboratories by NIST; or,
A NEMKO USA-approved independent (third party) metrology laboratory that uses NIST-traceable
standards and that is ISO Standard 17025-accredited as a calibration laboratory by another accreditation
body (such as A2LA) that is mutually recognized by NIST; or,
A manufacturer of Measurement and Test Equipment (M&TE), if the manufacturer uses NIST-traceable
standards and is ISO Standard 17025-accredited as calibration laboratory either by NIST or by another
accreditation body (such as A2LA) that is mutually recognized by NIST; or
A manufacturer of M&TE (or by a NEMKO USA-approved independent third party metrology laboratory)
that is not ISO Standard 17025-accredited. (In these cases, NEMKO USA conducts an annual audit of the
manufacturer or metrology laboratory for the purposes of proving traceability to NIST, ensuring that
adequate and repeatable calibration procedures are being applied, and verifying conformity with the other
requirements of ISO Standard 17025).
In all cases, the entity performing the Calibration is required to furnish NEMKO USA with a calibration test
report and/or certificate of calibration, and a “calibration sticker” on each item of M&TE that is successfully
calibrated.
Calibration intervals are normally one year, except when the manufacture advises a shorter interval or if US
Government directives or client requirements demand a shorter interval. Items of instrumentation/related
equipment which fail during routine use, or which suffer visible mechanical damage (during use or while in
transit), are sidelined pending repair and recalibration. (Repairs are carried out either in-house [if minor] or by a
NEMKO USA-approved independent [third party] metrology laboratory, or by the manufacturer of the item of
M&TE).
Each antenna used for radiated emissions testing is calibrated annually by either a NIST (or A2LA) ISO
Standard 17025-Accredited third-party Antenna Calibration Laboratory or by the antenna’s OEM if the OEM is
NIST or A2LA ISO Standard 17025-accredited as an antenna calibration laboratory.
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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4. Description of UUT Set-up and Modes of Operation
4.1 Test Specifics
The equipment lists for each EMI/EMC test is contained in the EMI test Sections 5.2.4. Serial numbers,
calibration due dates, and equipment used were recorded at test time. Instrumentation calibrations are traceable
to the National Institute of Standards and Technology.
A PC computer external to the test room was used in conjunction with the RTS version A for testing. The PC
used to simulate actual communications was used to also verify the signal integrity during the evaluation.
Functional performance tests on the UUT were performed prior to each test performed. These established the
base line parameters and verified the proper UUT operation. During the actual testing the communications was
monitored to verify normal UUT operation.
4.2 Modes of Operation during EMC Testing
During the EMI/EMC evaluation the unit will continuously operate for 12 hours. The configuration were set
according: DS1921G -> Every 1 minute (Max Rate), DS1922L -> Every 11 seconds, Resolution 0.0625 (4096
samples up to 12.5 hours), DS1925L -> Every 300 seconds, Resolution 0.0625 (Datasheet sheet recommended
lower limit is every 5 minutes or 300 seconds).
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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4.3 Figure and Picture of actual test Set-up
Figure 4.3-1 UUT Test Setup
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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5. Bonding and Emission Control
5.1 Bonding Test
5.1.1 Bonding Test Method
Per RTCA/DO-160G the bonding between the UUT, LISN’s and ground plane were measured and verified to be
less than 2.5 milli ohms.
Test Dates: July 11, 2016
Test Results: Passed
5.1.2 Bonding Data Sheets
Customer: Maxim Integrated Products
Job order: 313140
Test Engineer: Lan Sayasane
Date: July 11, 2016
Standard: RTCA/DO-160G
Remarks: Section 21.5 – Radiated RF Emissions
From
Location
To
Location
Measured
mΩ Limit
mΩ
Pass
(√ )
Remarks
Table Ground Plane Ground Strap 0.02 2.5 √
5.1.3 Bonding Photographs
5.1.4 Bonding Equipment List
Asset No.: Description: Company: Model Number: Serial Number: Date Cal: Cal Due Date:
D1851 Milliohm Meter Extech 380560 DA4017 12/30/2015 12/30/2016
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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5.2 Radiated RF Emissions
5.2.1 Radiated RF Emissions Test Method
The purpose of this test was to measure the electric field radiated emissions produced by the UUT and
associated cabling and to determine whether these emissions are in compliance with the requirements of
RTCA/DO-160G.
The UUT configured as shown in Figure 4.3.1 inside the anechoic chamber. The field-measuring antenna was
placed inside the chamber and connected via coaxial cable through the bulkhead panel to the detection system
located outside the chamber. The detection system consisted of a Spectrum Analyzer controlled by a Computer.
A number of antennas were used to cover the frequency range required in this test.
The operation of the UUT was verified. Measurements were then performed of the radiated electric field
emissions produced by the UUT. The data was reduced and plotted together with the applicable limit. The
Limit is per RTCA/DO-160G, Figure 21-9: Maximum Level of Radiated RF Interference – Category H.
Test Results: The UUT passed the radiated emissions testing as demonstrated in the plots below.
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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Figure 5.1-1 Test Configuration
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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5.2.2 Radiated RF Emissions Test Data
Figure 5.1-2: 100 MHz – 200 MHz - Vertical
Nemko USA
RTCA/DO-160G Section 21.5 - Radiated Emissions
Biconical - 100 MHz - 200 MHz - Operational - Vertical
100.0M 200.0M
Frequency
-50.0
-40.0
-30.0
-20.0
-10.0
0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
Am
pli
tud
e d
Bu
V/m
01:11:52 PM, Monday, July 11, 2016
Operator: LS
Company - Maxim Integrated Products
Test Item - Data Loggers
Model No - DS1921G-F5#, DS1922L-F5# & DS1925L-F5#
SpecLimit
E_BiconV_F
Figure 5.1-3: 100 MHz – 200 MHz - Horizontal
Nemko USA
RTCA/DO-160G Section 21.5 - Radiated Emissions
Biconical - 100 MHz - 200 MHz - Operational - Horizontal
100.0M 200.0M
Frequency
-50.0
-40.0
-30.0
-20.0
-10.0
0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
Am
pli
tud
e d
Bu
V/m
01:14:41 PM, Monday, July 11, 2016
Operator: LS
Company - Maxim Integrated Products
Test Item - Data Loggers
Model No - DS1921G-F5#, DS1922L-F5# & DS1925L-F5#
E_BiconH_F
SpecLimit
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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Figure 5.1-4: 200 MHz – 960 MHz - Vertical
Nemko USA
RTCA/DO-160G Section 21.5 - Radiated Emissions
Double Ridge Horn-Low - 200 MHz - 960 MHz - Operational - Vertical
200.0M 960.0M
Frequency
-50.0
-40.0
-30.0
-20.0
-10.0
0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
Am
pli
tud
e d
Bu
V/m
01:04:11 PM, Monday, July 11, 2016
Operator: LS
Company - Maxim Integrated Products
Test Item - Data Loggers
Model No - DS1921G-F5#, DS1922L-F5# & DS1925L-F5#
SpecLimit
E_DRGloV_F
E_DRGloV_F1
Figure 5.1-5: 200 MHz – 960 MHz - Horizontal
Nemko USA
RTCA/DO-160G Section 21.5 - Radiated Emissions
Double Ridge Horn-Low - 200 MHz - 960 MHz - Operational - Horizontal
200.0M 960.0M
Frequency
-50.0
-40.0
-30.0
-20.0
-10.0
0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
Am
pli
tud
e d
Bu
V/m
12:51:50 PM, Monday, July 11, 2016
Operator: LS
Company - Maxim Integrated Products
Test Item - Data Loggers
Model No - DS1921G-F5#, DS1922L-F5# & DS1925L-F5#
SpecLimit
E_DRGloH_F
E_DRGloH_F1
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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Figure 5.1-6: 960 MHz – 6000 MHz - Vertical
Nemko USA
RTCA/DO-160G Section 21.5 - Radiated Emissions
Double Ridge Horn-High - 960 MHz - 6 GHz - Operational - Vertical
960.0M 6.0G
Frequency
-10.0
0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
Am
pli
tud
e d
Bu
V/m
11:57:48 AM, Monday, July 11, 2016
Operator: LS
Company - Maxim Integrated Products
Test Item - Data Loggers
Model No - DS1921G-F5#, DS1922L-F5# & DS1925L-F5#
SpecLimitE_1_4VDRG_FE_4_8VDRG_FE_8_12VDRG_FE_12_18VDRG_F
Figure 5.1-7: 960 MHz – 6000 MHz - Horizontal
Nemko USA
RTCA/DO-160G Section 21.5 - Radiated Emissions
Double Ridge Horn-High - 960 MHz - 6 GHz - Operational - Horizontal
960.0M 6.0G
Frequency
-10.0
0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
Am
pli
tud
e d
Bu
V/m
11:41:51 AM, Monday, July 11, 2016
Operator: LS
Company - Maxim Integrated Products
Test Item - Data Loggers
Model No - DS1921G-F5#, DS1922L-F5# & DS1925L-F5#
SpecLimitE_1_4HDRG_FE_4_8HDRG_FE_8_12HDRG_FE_12_18HDRG_F
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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5.2.3 Radiated RF Emissions Photographs
Figure 5.1-8: 100 MHz to 200 MHz – Vertical
Figure 5.1-9: 100 MHz to 200 MHz – Horizontal
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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Figure 5.1-10: 200 MHz to 960 MHz – Vertical
Figure 5.1-11: 200 MHz to 960 MHz – Horizontal
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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Figure 5.1-12: 960 MHz to 6000 MHz – Vertical
Figure 5.1-13: 960 MHz to 6000 MHz – Horizontal
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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5.2.4 Radiated RF Emissions Test Equipment List
Asset No.: Description: Company: Model Number: Serial Number: Last Cal. Cal due
E1064 Spectrum Analyzer Agilent E4440A US42221762 2/15/2016 2/15/2017
E1029 Pre-amplifier A.H. Systems, Inc. PAM-0118 343 9/9/2016 9/9/2016
827 Pre-amplifier Com-Power PA-103 161032 3/8/2016 3/8/2017
117 Antenna, Biconical Electro-Metrics BIA-25 2611 3/22/2016 3/22/2017
E1014 Antenna, Dual Ridge A.H.Systems, Inc. SAS-570 174 12/12/2015 12/12/2016
752 Antenna, DRG Horn EMCO 3115 9609-4943 4/5/2016 4/5/2017
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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APPENDIX A – Calibration Program
Nemko USA, Inc.’s Test Equipment & Facilities Calibration Program
Nemko USA, Inc. operates a comprehensive Periodic Calibration Program in order to ensure the validity of all test
data. Nemko USA’s Periodic Calibration Program is fully compliant to the requirements of NVLAP Policy Guide
PG-1-1988, ANSI/NCSL Z540-1 (1994), ISO 10012-1 (1993-05-01), ISO Standard 17025, ISO-9000 and EN
45001. Nemko USA, Inc.’s calibrations program therefore meets or exceed the US national commercial and military
requirements [N.B. ANSI/NCSL Z540-1 (1994) replaces MIL-STD-45662A].
Specifically, all of Nemko USA’s primary reference standard devices (e.g. vector voltmeters, multimeters,
attenuators and terminations, RF power meters and their detector heads, oscilloscope mainframes and plug-ins,
spectrum analyzers, RF preselectors, quasi-peak adapters, interference analyzers, impulse generators, signal
generators and pulse/function generators, field-strength meters and their detector heads, etc.) and certain secondary
standard devices (e.g. RF Preamplifiers used in CISPR 11/22 and FCC Part 15/18 tests) are periodically recalibrated
by:
A Nemko USA-approved independent (third party) metrology laboratory that uses NIST-traceable standards and
that is ISO Standard 17025-accredited as a calibration laboratories by NIST; or,
A Nemko USA-approved independent (third party) metrology laboratory that uses NIST-traceable standards and
that is ISO Standard 17025-accredited as a calibration laboratory by another accreditation body (such as A2LA)
that is mutually recognized by NIST; or,
A manufacturer of Measurement and Test Equipment (M&TE), if the manufacturer uses NIST-traceable
standards and is ISO Standard 17025-accredited as calibration laboratory either by NIST or by another
accreditation body (such as A2LA) that is mutually recognized by NIST; or
A manufacturer of M&TE (or by a Nemko USA-approved independent third party metrology laboratory) that is
not ISO Standard 17025-accredited. (In these cases, Nemko USA conducts an annual audit of the manufacturer
or metrology laboratory for the purposes of proving traceability to NIST, ensuring that adequate and repeatable
calibration procedures are being applied, and verifying conformity with the other requirements of ISO Standard
17025).
In all cases, the entity performing the Calibration is required to furnish Nemko USA with a calibration test report
and/or certificate of calibration, and a “calibration sticker” on each item of M&TE that is successfully calibrated.
NemkoSD USA, Inc. 2210 Faraday Ave., Suite 150, Carlsbad, CA 92008
Phone (760) 444-3500 Fax (760) 444-3005
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Calibration intervals are normally one year, except when the manufacture advises a shorter interval (e.g. the HP
8568B Spectrum Analyzer is recalibrated every six months) or if US Government directives or client requirements
demand a shorter interval. Items of instrumentation/related equipment which fail during routine use, or which suffer
visible mechanical damage (during use or while in transit), are sidelined pending repair and recalibration. (Repairs
are carried out either in-house [if minor] or by a Nemko USA-approved independent [third party] metrology
laboratory, or by the manufacturer of the item of M&TE).
Each antenna used for CISPR 11 and CISPR 22 and FCC Part 15 and Part 18 radiated emissions testing (and for
testing to the equivalent European Norms) is calibrated annually by either a NIST (or A2LA) ISO Standard 17025-
Accredited third-party Antenna Calibration Laboratory or by the antenna’s OEM if the OEM is NIST or A2LA ISO
Standard 17025-accredited as an antenna calibration laboratory. The antenna calibrations are performed using the
methods specified in Annex G.5 of CISPR 16-1(1993) or ANSI C63.5-1991, including the “Three-Antenna
Method”. Certain other kinds of antennas (e.g. magnetic-shielded loop antennas) are calibrated annually by either a
NIST (or A2LA) ISO Standard 17025-accredited third-party antenna calibration laboratory, or by the antenna’s
OEM if the OEM is NIST or A2LA ISO Standard 17025-accredited as an antenna calibration laboratory using the
procedures specified in the latest version of SAE ARP-958.
In accordance with FCC and other regulations, Nemko USA recalibrates its suite of antennas used for radiated
emissions tests on an annual basis. These calibrations are performed as a precursor to the FCC-required annual
revalidation of the Normalized Site Attenuation properties of Nemko USA’s Open Area Test Site. Nemko USA, Inc.
uses the procedures given in both Subclause 16.6 and Annex G.2 of CISPR 16-1 (1993), and, ANSI C63.4-1992
when performing the normalized site attenuation measurements.