Test Report

FCC ID: R7PER6R1S4

Test Report

Download: PDF
FCCID_2928967

                                               Certification Test Report

                                                          FCC ID: R7PER6R1S4
                                                           IC: 5294A-ER6R1S4

                                           FCC Rule Part: 15.247
                                 IC Radio Standards Specification: RSS-247

                                       ACS Report Number: 15-0421.W06.1B


                                    Manufacturer: Landis+Gyr Technology, Inc.
                                                 Model: 26-7500

                                            Test Begin Date: November 3, 2015
                                             Test End Date: December 1, 2015

                                              Report Issue Date: March 8, 2016




                                  FOR THE SCOPE OF ACCREDITATION UNDER Certificate Number: AT-2021

 This report must not be used by the client to claim product certification, approval, or endorsement by ANAB, NIST, or any agency of
                                                       the Federal Government.




                                                Reviewed by:
                                                                   Kirby Munroe
                                                         Director, Wireless Certifications
                                                                     ACS, Inc.

This test report shall not be reproduced except in full. This report may be reproduced in part with prior written consent of ACS, Inc. The results contained in this report
                                                        are representative of the sample(s) submitted for evaluation.
                                                            This report contains 25 pages




                          5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598


                                                           TABLE OF CONTENTS
1      GENERAL ............................................................................................................................................ 3
    1.1        PURPOSE.......................................................................................................................................... 3
    1.2        PRODUCT DESCRIPTION ................................................................................................................... 3
    1.3        TEST METHODOLOGY AND CONSIDERATIONS ................................................................................. 4
2      TEST FACILITIES .............................................................................................................................. 5
    2.1     LOCATION ....................................................................................................................................... 5
    2.2     LABORATORY ACCREDITATIONS/RECOGNITIONS/CERTIFICATIONS ................................................ 5
    2.3     RADIATED EMISSIONS TEST SITE DESCRIPTION .............................................................................. 6
       2.3.1    Semi-Anechoic Chamber Test Site .......................................................................................... 6
       2.3.2    Open Area Tests Site (OATS) ................................................................................................. 7
    2.4     CONDUCTED EMISSIONS TEST SITE DESCRIPTION ........................................................................... 8
3      APPLICABLE STANDARD REFERENCES.................................................................................... 8

4      LIST OF TEST EQUIPMENT ............................................................................................................ 9

5      SUPPORT EQUIPMENT ...................................................................................................................10

6      EQUIPMENT UNDER TEST SETUP BLOCK DIAGRAM ..........................................................10

7      SUMMARY OF TESTS ......................................................................................................................11
    7.1     ANTENNA REQUIREMENT – FCC 15.203 ........................................................................................11
    7.2     POWER LINE CONDUCTED EMISSIONS – FCC 15.207, IC: RSS-GEN 8.8 ........................................11
       7.2.1    Measurement Procedure ........................................................................................................11
       7.2.2    Measurement Results .............................................................................................................11
    7.3     6DB / 99% BANDWIDTH – FCC 15.247(A)(2), IC: RSS-247 5.2(1) ................................................13
       7.3.1    Measurement Procedure ........................................................................................................13
       7.3.2    Measurement Results .............................................................................................................13
    7.4     FUNDAMENTAL EMISSION OUTPUT POWER – FCC 15.247(B)(3), IC: RSS-247 5.4(4) ...................16
       7.4.1    Measurement Procedure ........................................................................................................16
       7.4.2    Measurement Results .............................................................................................................16
    7.5     EMISSION LEVELS – FCC 15.247(D), 15.205, 15.209; IC RSS-247 5.5, RSS-GEN 8.9....................17
       7.5.1    Emissions into Non-restricted Frequency Bands ...................................................................17
           7.5.1.1        Measurement Procedure ................................................................................................................... 17
           7.5.1.2        Measurement Results ....................................................................................................................... 17
       7.5.2          Emissions into Restricted Frequency Bands - FCC 15.205, 15.209; RSS-Gen 8.9/8.10 .......20
           7.5.2.1        Measurement Procedure ................................................................................................................... 20
           7.5.2.2        Duty Cycle Correction ..................................................................................................................... 20
           7.5.2.3        Measurement Results ....................................................................................................................... 20
           7.5.2.4        Sample Calculation: ......................................................................................................................... 22
    7.6     MAXIMUM POWER SPECTRAL DENSITY IN THE FUNDAMENTAL EMISSION – FCC 15.247(E) IC:
    RSS-247 5.2(2) ..........................................................................................................................................23
       7.6.1   Measurement Procedure ........................................................................................................23
       7.6.2   Measurement Results .............................................................................................................23
8      CONCLUSION ....................................................................................................................................25




                    5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598


    Model: 26-7500                   FCC ID: R7PER6R1S4                   IC: 5294A-ER6R1S4

1     GENERAL

1.1     Purpose

The purpose of this report is to demonstrate compliance with Part 15 Subpart C of the FCC’s
Code of Federal Regulations and Industry Canada’s Radio Standards Specification Certification.
RSS-247.

1.2     Product Description

The 26-7500 is a communication module that contains one (1) Zigbee radio (2405 – 2475 MHz)
with an on-board inverted-F antenna and an external inverted-F antenna, and (1) Cellular radio
with a custom antenna mounted on the printed circuit board. The 26-7500 is intended to be
mounted inside Landis+Gyr Focus AXe meter forms.

The Cellular radio is an approved module and is not covered under this filing. The 26-7500
Zigbee and Cellular radios can transmit simultaneously and were evaluated for simultaneous
transmission.

Technical Information:
            Detail                                          Description
 Frequency Range              2405 MHz – 2475 MHz
 Number of Channels           15
 Modulation Format            O-QPSK
 Operating Voltage            12Vdc
 Antenna Type / Gain          IFA (Ant Port 1) / -3.07dBi
                              IFA (Ant Port 0) / -5.38dBi

Manufacturer Information:
Landis+Gyr Technology, Inc.
30000 Mill Creek Avenue, Suite 100
Alpharetta, GA 30022

EUT Serial Numbers: E289W301500000159

Test Sample Condition: The test samples were provided in good working order with no visible
defects.




ACS Report: 15-0421.W06.1B                 Advanced Compliance Solutions              Page 3


 Model: 26-7500                     FCC ID: R7PER6R1S4                  IC: 5294A-ER6R1S4


1.3   Test Methodology and Considerations

All modes of operation, including all available data rates, were evaluated for each mode. The
data presented in this report represents the worst case where applicable.

For radiated emissions the EUT was evaluated in three orthogonal orientations. The worst case
orientation was the Y-orientation.

For AC power line conducted emissions the EUT was evaluated in a typical host.

Radiated inter-modulation testing was performed for all combinations of simultaneous
transmission and found to be in compliance.

Software power setting during test CH11: 8
Software power setting during test CH18: 7
Software power setting during test CH25: 8




ACS Report: 15-0421.W06.1B                   Advanced Compliance Solutions           Page 4


    Model: 26-7500                    FCC ID: R7PER6R1S4                  IC: 5294A-ER6R1S4

2     TEST FACILITIES

2.1     Location

The radiated and conducted emissions test sites are located at the following address:

      Advanced Compliance Solutions
      5015 B.U. Bowman Drive
      Buford, GA 30518
      Phone: (770) 831-8048
      Fax: (770) 831-8598

2.2     Laboratory Accreditations/Recognitions/Certifications

ACS is accredited to ISO/IEC 17025 by the ANSI-ASQ National Accreditation Board/ANAB
accreditation program, and has been issued certificate number AT-2021 in recognition of this
accreditation. Unless otherwise specified, all tests methods described within this report are
covered under the ISO/IEC 17025 scope of accreditation.

The Semi-Anechoic Chamber Test Site, Open Area Test Site (OATS) and Conducted Emissions
Site have been fully described, submitted to, and accepted by the FCC, Industry Canada and the
Japanese Voluntary Control Council for Interference by information technology equipment.

FCC Registration Number: 391271
Industry Canada Lab Code: IC 4175A
VCCI Member Number: 1831
•       VCCI OATS Registration Number R-1526
•       VCCI Conducted Emissions Site Registration Number: C-1608




ACS Report: 15-0421.W06.1B                 Advanced Compliance Solutions                Page 5


 Model: 26-7500                        FCC ID: R7PER6R1S4                     IC: 5294A-ER6R1S4

2.3     Radiated Emissions Test Site Description


2.3.1    Semi-Anechoic Chamber Test Site

The Semi-Anechoic Chamber Test Site consists of a 20’ x 30’ x 18’ shielded enclosure. The
chamber is lined with Toyo Ferrite Grid Absorber, model number FFG-1000. The ferrite tile grid is
101 x 101 x 19mm thick and weighs approximately 550 grams. These tiles are mounted on steel
panels and installed directly on the inner walls of the chamber.

The turntable is 150cm in diameter and is located 160cm from the back wall of the chamber. The
chamber is grounded via 1 - 8’ copper ground rod, installed at the center of the back wall, it is
bound to the ground plane using 3/4" stainless steel braided cable.

The turntable is all steel, flush mounted table installed in an all steel frame. The table is remotely
operated from inside the control room located 25’ from the range. The turntable is electrically
bonded to the surrounding ground plane via steel fingers installed on the edge of the turn table.
The steel fingers make constant contact with the ground plane during operation.

Behind the turntable is a 3’ x 6’ x 4’ deep shielded pit used for support equipment if necessary.
The pit is equipped with 1 - 4” PVC chases from the turntable to the pit that allow for cabling to
the EUT if necessary. The underside of the turntable can be accessed from the pit so cables can
be supplied to the EUT from the pit.

A diagram of the Semi-Anechoic Chamber Test Site is shown in Figure 2.3-1 below:




                                             3 Meters


                                                                         5 Feet
                                                                        Diameter




                                                                                    20 Feet


                                               30 Feet
                        Figure 2.3-1: Semi-Anechoic Chamber Test Site




ACS Report: 15-0421.W06.1B                   Advanced Compliance Solutions                    Page 6


 Model: 26-7500                       FCC ID: R7PER6R1S4                      IC: 5294A-ER6R1S4


2.3.2   Open Area Tests Site (OATS)

The open area test site consists of a 40’ x 66’ concrete pad covered with a perforated electro-
plated galvanized sheet metal. The perforations in the sheet metal are 1/8” holes that are
staggered every 3/16”. The individual sheets are placed to overlap each other by 1/4” and are
riveted together to provide a continuous seam. Rivets are spaced every 3” in a 3 x 20 meter
perimeter around the antenna mast and EUT area. Rivets in the remaining area are spaced as
necessary to properly secure the ground plane and maintain the electrical continuity.

The entire ground plane extends 12’ beyond the turntable edge and 16’ beyond the antenna mast
when set to a 10 meter measurement distance. The ground plane is grounded via 4 - 8’ copper
ground rods, each installed at a corner of the ground plane and bound to the ground plane using
3/4" stainless steel braided cable.

The turntable is an all aluminum 10’ flush mounted table installed in an all aluminum frame. The
table is remotely operated from inside the control room located 40’ from the range. The turntable
is electrically bonded to the surrounding ground plane via steel fingers installed on the edge of
the turn table. The steel fingers make constant contact with the ground plane during operation.

Adjacent to the turntable is a 7’ x 7’ square and 4’ deep concrete pit used for support equipment if
necessary. The pit is equipped with 5 - 4” PVC chases from the pit to the control room that allow
for cabling to the EUT if necessary. The underside of the turntable can be accessed from the pit
so cables can be supplied to the EUT from the pit. The pit is covered with 2 sheets of 1/4"
diamond style re-enforced steel sheets. The sheets are painted to match the perforated steel
ground plane; however the underside edges have been masked off to maintain the electrical
continuity of the ground plane. All reflecting objects are located outside of the ellipse defined in
ANSI C63.4.

A diagram of the Open Area Test Site is shown in Figure 2.3-2 below:



                                             10Meter

                                                        3 Meters



                                                                                  40Feet




                                                                      7x7x4
                                                                       Pit

                                           66 Feet

                               Figure 2.3-2: Open Area Test Site




ACS Report: 15-0421.W06.1B                  Advanced Compliance Solutions                  Page 7


    Model: 26-7500                       FCC ID: R7PER6R1S4                     IC: 5294A-ER6R1S4

2.4       Conducted Emissions Test Site Description

The AC mains conducted EMI site is located in the main EMC lab. It consists of an 8’ x 8’ solid
aluminum horizontal ground reference plane (GRP) bonded every 3” to an 8’ X 8’ vertical ground
plane.

The site is of sufficient size to test table top and floor standing equipment in accordance with
section 6.1.4 of ANSI C63.4.

A diagram of the room is shown below in figure 4.1.3-1:




                   Vertical Ground Plane (8’ x 8’)




                                                      Non-Conductive EUT Table
                                                          (1m x 1.5m x .8m)


              .4 Meters




                 .8 Meters


                                                            Horizontal Ground Plane (8’ x 8’)

               LISN
                             Figure 2.4-1: AC Mains Conducted EMI Site

3     APPLICABLE STANDARD REFERENCES

The following standards were used:

          ANSI C63.10-2013: American National Standard of Procedures for Compliance Testing of
           Unlicensed Wireless Devices
          US Code of Federal Regulations (CFR): Title 47, Part 2, Subpart J: Equipment Authorization
           Procedures, 2016
          US Code of Federal Regulations (CFR): Title 47, Part 15, Subpart C: Radio Frequency Devices,
           Intentional Radiators, 2016
          FCC KDB 558074 D01 DTS Meas Guidance v03r04 - Guidance for Performing Compliance
           Measurements on Digital Transmission Systems (DTS) Operating Under §15.247, January 7, 2016
          Industry Canada Radio Standards Specification: RSS-247 – Digital Transmission Systems (DTSs),
           Frequency Hopping Systems (FHSs) and Licence-Exempt Local Area Network (LE-LAN) Devices,
           Issue 1, May 2015.
          Industry Canada Radio Standards Specification:        RSS-GEN – General Requirements and
           Information for the Certification of Radiocommunication Equipment, Issue 4, Nov 2014.




ACS Report: 15-0421.W06.1B                     Advanced Compliance Solutions                    Page 8


    Model: 26-7500                                FCC ID: R7PER6R1S4                              IC: 5294A-ER6R1S4

4         LIST OF TEST EQUIPMENT

The calibration interval of test equipment is annually or the manufacturer’s recommendations.
Where the calibration interval deviates from the annual cycle based on the instrument
manufacturer’s recommendations, it shall be stated below.

                                               Table 4-1: Test Equipment
                                                                                                                Calibration
AssetID         Manufacturer            Model #        Equipment Type        Serial #   Last Calibration Date    Due Date
   1          Rohde & Schwarz        ESMI - Display   Spectrum Analyzers   833771/007        7/14/2015          7/14/2016
   2          Rohde & Schwarz        ESMI-Receiver    Spectrum Analyzers   839587/003        7/14/2015          7/14/2016
  30        Spectrum Technologies      DRH-0118           Antennas           970102          4/30/2015          4/30/2017
  40               EMCO                   3104            Antennas            3211           2/10/2015          2/10/2017
  73               Agilent               8447D            Amplifiers       2727A05624        7/15/2015          7/15/2016
                                     Chamber EMI
 167                ACS                Cable Set          Cable Set           167            10/20/2015         10/20/2016
 168           Hewlett Packard          11947A           Attenuators         44829            1/19/2015         1/19/2016
 267               Agilent              N1911A             Meters          MY45100129         8/24/2015          8/24/2017
 268               Agilent              N1921A             Sensors         MY45240184         8/13/2015          8/13/2017
                                     SMR-290AW-
 292         Florida RF Cables        480.0-SMR            Cables             None           3/3/2015            3/3/2016
 324                ACS                  Belden            Cables             8214           5/5/2015            5/5/2016
 334          Rohde&Schwarz             3160-09           Antennas            49404          11/4/2010             NCR
 335               Suhner               SF-102A            Cables            882/2A          7/14/2015          7/14/2016
 338          Hewlett Packard            8449B            Amplifiers       3008A01111        8/21/2015          8/21/2017
 340         Aeroflex/Weinschel          AS-20           Attenuators          7136           7/13/2015          7/13/2016
 345          Suhner Sucoflex             102A             Cables            1077/2A         7/14/2015          7/14/2016
 412           Electro Metrics          LPA-25            Antennas            1241           7/24/2014          7/24/2016
                                    SMS-200AW-72.0-
 422              Florida RF              SMR              Cables              805           10/30/2015         10/30/2016
 432          Microwave Circuits      H3G020G4             Filters           264066           5/20/2015         5/20/2016
                                    SMRE-200W-12.0-
  616         Florida RF Cables          SMRE              Cables              N/A           9/3/2015            9/3/2016
  622         Rohde & Schwarz            FSV40            Analyzers          101338          7/15/2015          7/15/2016
 3010         Rohde & Schwarz           ENV216              LISN              3010           7/10/2015          7/10/2016
RE112         Rohde & Schwarz           ESIB26            Receiver         836119/012        7/16/2015          7/16/2016




 ACS Report: 15-0421.W06.1B                                 Advanced Compliance Solutions                            Page 9


    Model: 26-7500                         FCC ID: R7PER6R1S4                        IC: 5294A-ER6R1S4

5     SUPPORT EQUIPMENT

                                   Table 5-1: Support Equipment
Item      Equipment Type         Manufacturer Model Number                        Serial Number
      1   DC Power Supply        Agilent                6286A              2109A-06095
      2   Electric Meter         Landis + Gyr           FOCUS RXRe         132 876 796
          Electric Meter         Milbank MFG
      3   Socket                 CO                     Series U-125       1000051

6     EQUIPMENT UNDER TEST SETUP BLOCK DIAGRAM



      Radiated Emissions Test Setup




                                            A                          B
                           EUT                            (1)                  120 VAC / 60 Hz




      Power Line Conducted Emissions Test Setup




                                                EUT

                                                                C      120 VAC / 60 Hz
                                                (2)




                                                  (3)




    A: DC Power Wires (twisted pair), 200 cm, Non-shielded.
    B: AC Power Cable, 120 cm, Non-shielded
    C: AC Power Cable, 180 cm, Non-shielded
                                 Figure 6-1: Test Setup Block Diagram




ACS Report: 15-0421.W06.1B                          Advanced Compliance Solutions                 Page 10


    Model: 26-7500                     FCC ID: R7PER6R1S4                IC: 5294A-ER6R1S4

7     SUMMARY OF TESTS

Along with the tabular data shown below, plots were taken of all signals deemed important
enough to document.

7.1     Antenna Requirement – FCC 15.203

The EUT utilizes a permanently attached Inverted F-Antenna with a peak gain of -3.07dBi, and an
external Inverted-F Antenna with a peak gain of -5.38dBi which is coupled to the EUT via an U.FL
connector.

7.2     Power Line Conducted Emissions – FCC 15.207, IC: RSS-Gen 8.8


7.2.1    Measurement Procedure

ANSI C63.4 sections 6 and 7 were the guiding documents for this evaluation. Conducted
emissions were performed from 150kHz to 30MHz with the spectrum analyzer’s resolution
bandwidth set to 9kHz and the video bandwidth set to 30kHz. The calculation for the conducted
emissions is as follows:

Corrected Reading = Analyzer Reading + LISN Loss + Cable Loss
Margin = Applicable Limit - Corrected Reading


7.2.2    Measurement Results

                          Table 7.2.2-1: Conducted EMI Results Line 1

                 Corrected Reading
Frequency                                   Limit        Margin                       Correction
                                                                          Line
  (MHz)                                    (dBuV)         (dB)                           (dB)
             Quasi-Peak      Average
              (dBuV)          (dBuV)
22.385070        ---          20.82         50.00        29.18             L1            10.3
22.385070       33.25           ---         60.00        26.75             L1            10.3
22.424950        ---          20.14         50.00        29.86             L1            10.3
22.424950       32.47           ---         60.00        27.53             L1            10.3
23.097895        ---          20.54         50.00        29.46             L1            10.3
23.097895       33.12           ---         60.00        26.88             L1            10.3
23.183467        ---          21.08         50.00        28.92             L1            10.3
23.183467       33.72           ---         60.00        26.28             L1            10.3
23.362625        ---          20.40         50.00        29.60             L1            10.3
23.362625       33.39           ---         60.00        26.61             L1            10.3
23.432164        ---          20.87         50.00        29.13             L1            10.3
23.432164       32.85           ---         60.00        27.15             L1            10.3




ACS Report: 15-0421.W06.1B                 Advanced Compliance Solutions               Page 11


 Model: 26-7500                       FCC ID: R7PER6R1S4               IC: 5294A-ER6R1S4

                         Table 7.2.2-2: Conducted EMI Results Line 2

                Corrected Reading
Frequency                                  Limit      Margin                     Correction
                                                                       Line
  (MHz)                                   (dBuV)       (dB)                         (dB)
            Quasi-Peak      Average
             (dBuV)          (dBuV)
0.495091        ---          36.75         46.07       9.32             N           9.7
0.495091      43.13            ---         56.08       12.95            N           9.7
0.510922        ---          30.26         46.00       15.74            N           9.7
0.510922      39.64            ---         56.00       16.36            N           9.7
0.951603        ---          23.60         46.00       22.40            N           9.7
0.951603      33.21            ---         56.00       22.79            N           9.7
1.218236        ---          23.75         46.00       22.25            N           9.7
1.218236      37.02            ---         56.00       18.98            N           9.7
4.043401        ---          18.95         46.00       27.05            N           9.8
4.043401      30.68            ---         56.00       25.32            N           9.8
4.533767        ---          20.61         46.00       25.39            N           9.8
4.533767      32.82            ---         56.00       23.18            N           9.8




ACS Report: 15-0421.W06.1B                Advanced Compliance Solutions           Page 12


 Model: 26-7500                          FCC ID: R7PER6R1S4                    IC: 5294A-ER6R1S4

7.3     6dB / 99% Bandwidth – FCC 15.247(a)(2), IC: RSS-247 5.2(1)


7.3.1    Measurement Procedure

The 6dB bandwidth was measured in accordance with the FCC KDB 558074 D01 DTS Meas
Guidance v03r04. The Resolution Bandwidth (RBW) of the spectrum analyzer was set to 100
kHz. The Video Bandwidth (VBW) was set to ≥ 3 times the RBW. The trace was set to max hold
with a peak detector active. The ndB down function of the spectrum analyzer was utilized to
determine the 6 dB bandwidth of the emission.

The occupied bandwidth measurement function of the spectrum analyzer was used to measure
the 99% bandwidth. The span of the analyzer was set to capture all products of the modulation
process, including the emission sidebands. The resolution bandwidth was set to 1% to 5% of the
occupied bandwidth. The video bandwidth was set to 3 times the resolution bandwidth. A peak
detector was used.


7.3.2    Measurement Results

                     Table 7.3.2-1: 6dB / 99% Bandwidth – Antenna Port 0
                   Frequency            6dB Bandwidth         99% Bandwidth
                     [MHz]                   [MHz]                [MHz]
                      2405                    1.60                 2.46
                      2440                    1.60                 2.46
                      2475                    1.60                 2.42




          Figure 7.3.2-1: 6dB Bandwidth Plot – LCH     Figure 7.3.2-2: 6dB Bandwidth Plot – MCH




ACS Report: 15-0421.W06.1B                     Advanced Compliance Solutions                      Page 13


 Model: 26-7500                       FCC ID: R7PER6R1S4                   IC: 5294A-ER6R1S4




      Figure 7.3.2-3: 6dB Bandwidth Plot – HCH      Figure 7.3.2-4: 99% Bandwidth Plot – LCH




      Figure 7.3.2-5: 99% Bandwidth Plot – MCH      Figure 7.3.2-6: 99% Bandwidth Plot – HCH




ACS Report: 15-0421.W06.1B                  Advanced Compliance Solutions                  Page 14


 Model: 26-7500                       FCC ID: R7PER6R1S4                    IC: 5294A-ER6R1S4

                   Table 7.3.2-2: 6dB / 99% Bandwidth – Antenna Port 1
                 Frequency            6dB Bandwidth         99% Bandwidth
                   [MHz]                   [MHz]                [MHz]
                    2405                    1.59                 2.46
                    2440                    1.59                 2.46
                    2475                    1.57                 2.42




       Figure 7.3.2-7: 6dB Bandwidth Plot – LCH     Figure 7.3.2-8: 6dB Bandwidth Plot – MCH




      Figure 7.3.2-9: 6dB Bandwidth Plot – HCH      Figure 7.3.2-10: 99% Bandwidth Plot – LCH




     Figure 7.3.2-11: 99% Bandwidth Plot – MCH       Figure 7.3.2-12: 99% Bandwidth Plot – HCH


ACS Report: 15-0421.W06.1B                  Advanced Compliance Solutions                      Page 15


 Model: 26-7500                    FCC ID: R7PER6R1S4               IC: 5294A-ER6R1S4

7.4     Fundamental Emission Output Power – FCC 15.247(b)(3), IC: RSS-247 5.4(4)


7.4.1    Measurement Procedure

The maximum conducted output power was measured in accordance with FCC KDB 558074 D01
DTS Meas Guidance v03r04 utilizing the PKPM1 Peak Power Meter method. The RF output of
the equipment under test was directly connected to the power meter applying suitable
attenuation.



7.4.2    Measurement Results

             Table 7.4.2-1: Maximum Conducted Output Power – Antenna Port 0
                             Frequency              Level
                               [MHz]               [dBm]
                                2405                21.56
                                2440                21.27
                                2475                20.98

             Table 7.4.2-2: Maximum Conducted Output Power – Antenna Port 1
                             Frequency              Level
                               [MHz]               [dBm]
                                2405                21.59
                                2440                21.47
                                2475                20.98




ACS Report: 15-0421.W06.1B              Advanced Compliance Solutions              Page 16


 Model: 26-7500                             FCC ID: R7PER6R1S4                       IC: 5294A-ER6R1S4

7.5      Emission Levels – FCC 15.247(d), 15.205, 15.209; IC RSS-247 5.5, RSS-Gen 8.9


7.5.1      Emissions into Non-restricted Frequency Bands

7.5.1.1     Measurement Procedure

The unwanted emissions into non-restricted bands were measured conducted in accordance with
FCC KDB 558074 D01 DTS Meas Guidance v03r04. The RF output of the equipment under test
was directly connected to the input of the spectrum analyzer applying suitable attenuation. The
Resolution Bandwidth (RBW) of the spectrum analyzer was set to 100 kHz. The Video
Bandwidth (VBW) was set to 300 kHz. Span was set to 1.5 times the DTS bandwidth. The trace
was set to max hold with a peak detector active. The resulting spectrum analyzer peak level was
used to determine the reference level with respect to the 20 dBc limit. The spectrum span was
then adjusted for the measurement of spurious emissions from 30MHz to 25GHz, 10 times the
highest fundamental frequency.

Band-edge compliance was determined using the conducted marker-delta method in which the
radio frequency power that is produced by the EUT is at least 20 dB below that in the 100 kHz
bandwidth within the band that contains the highest level of desired power.


7.5.1.2     Measurement Results




      Figure 7.5.1.2-1: 30 MHz – 25 GHz – Port 0 LCH         Figure 7.5.1.2-2: 30 MHz – 25 GHz – Port 0 MCH




                                  Figure 7.5.1.2-3: 30 MHz – 25 GHz – Port 0 HCH


ACS Report: 15-0421.W06.1B                        Advanced Compliance Solutions                      Page 17


 Model: 26-7500                         FCC ID: R7PER6R1S4                        IC: 5294A-ER6R1S4




    Figure 7.5.1.2-4: Lower Band-edge – Port 0              Figure 7.5.1.2-5: Upper Band-edge – Port 0




  Figure 7.5.1.2-6: 30 MHz – 25 GHz – Port 1 LCH         Figure 7.5.1.2-7: 30 MHz – 25 GHz – Port 1 MCH




                              Figure 7.5.1.2-8: 30 MHz – 25 GHz – Port 1 HCH




ACS Report: 15-0421.W06.1B                    Advanced Compliance Solutions                       Page 18


 Model: 26-7500                         FCC ID: R7PER6R1S4                       IC: 5294A-ER6R1S4




    Figure 7.5.1.2-9: Lower Band-edge – Port 1            Figure 7.5.1.2-10: Upper Band-edge – Port 1




ACS Report: 15-0421.W06.1B                       Advanced Compliance Solutions                   Page 19


 Model: 26-7500                              FCC ID: R7PER6R1S4                            IC: 5294A-ER6R1S4


7.5.2     Emissions into Restricted Frequency Bands - FCC 15.205, 15.209; RSS-Gen
          8.9/8.10

7.5.2.1      Measurement Procedure

The unwanted emissions into restricted bands were measured radiated over the frequency range
of 30MHz to 25GHz, 10 times the highest fundamental frequency.

The EUT was rotated through 360° and the receive antenna height was varied from 1m to 4m so
that the maximum radiated emissions level would be detected. For frequencies below 1000MHz,
quasi-peak measurements were made using a resolution bandwidth RBW of 120 kHz and a video
bandwidth VBW of 300 kHz. For frequencies above 1000MHz, peak and average measurements
were made with RBW and VBW of 1 MHz and 3 MHz respectively.

Each emission found to be in a restricted band as defined by section 15.205, including any
emission at the operational band-edge, was compared to the radiated emission limits as defined
in section 15.209.

7.5.2.2      Duty Cycle Correction

For average radiated measurements, using a 39.16% duty cycle, the measured level was
reduced by a factor 8.84dB. The duty cycle correction factor is determined using the formula:
20log (39.16/100) = -8.84dB. A detailed analysis of the duty cycle timing is provided in the
Theory of Operation accompanying the application for certification.


7.5.2.3      Measurement Results

        Table 7.5.2.3-1: Radiated Spurious Emissions Tabulated Data – Antenna Port 0
                          Level       Antenna      Correction     Corrected Level       Limit               Margin
  Frequency              (dBuV)       Polarity      Factors          (dBuV/m)         (dBuV/m)               (dB)
    (MHz)
                  pk        Qpk/Avg    (H/V)          (dB)         pk     Qpk/Avg   pk     Qpk/Avg    pk      Qpk/Avg
                                                  Low Channel
     2390        64.56       54.23       H           -5.47        59.09    40.62    74.0    54.0     14.9       13.4
     2390        61.49       52.40       V           -5.47        56.02    38.79    74.0    54.0     18.0       15.2
     4810        55.10       46.74       H           1.84         56.94    40.43    74.0    54.0     17.1       13.6
     4810        50.82       41.53       V           1.84         52.66    35.22    74.0    54.0     21.3       18.8
    12025        53.49       44.63       H           14.86        68.35    51.35    83.5    63.5     15.2       12.2
    12025        52.74       43.26       V           14.86        67.60    49.98    83.5    63.5     15.9       13.6
                                                 Middle Channel
     4880        55.06       47.04       H           2.06         57.12    40.95    74.0    54.0     16.9       13.0
     4880        50.23       39.96       V           2.06         52.29    33.87    74.0    54.0     21.7       20.1
     7320        54.31       46.58       H           7.84         62.15    46.28    74.0    54.0     11.8        7.7
     7320        57.88       50.67       V           7.84         65.72    50.37    74.0    54.0      8.3        3.6
    12200        52.36       42.57       H           15.98        68.34    50.40    83.5    63.5     15.2       13.1
    12200        52.73       43.51       V           15.98        68.71    51.34    83.5    63.5     14.8       12.2
                                                 High Channel
    2483.5       72.26       62.71       H           -5.01        67.25    49.55    74.0    54.0      6.8        4.4
    2483.5       69.31       59.84       V           -5.01        64.30    46.68    74.0    54.0      9.7        7.3
     4950        55.48       46.81       H           2.27         57.75    40.94    74.0    54.0     16.2       13.1
     4950        50.40       40.01       V           2.27         52.67    34.14    74.0    54.0     21.3       19.9
     7425        57.28       49.53       H           7.91         65.19    49.29    74.0    54.0      8.8        4.7
     7425        58.01       50.47       V           7.91         65.92    50.23    74.0    54.0      8.1        3.8
    12375        57.10       48.77       H           17.09        74.19    57.72    83.5    63.5      9.3        5.8
    12375        54.13       44.96       V           17.09        71.22    53.91    83.5    63.5     12.3        9.6




ACS Report: 15-0421.W06.1B                          Advanced Compliance Solutions                             Page 20


 Model: 26-7500                           FCC ID: R7PER6R1S4                            IC: 5294A-ER6R1S4

     Table 7.5.2.3-2: Radiated Spurious Emissions Tabulated Data – Antenna Port 1
                       Level       Antenna      Correction     Corrected Level       Limit               Margin
  Frequency           (dBuV)       Polarity      Factors          (dBuV/m)         (dBuV/m)               (dB)
    (MHz)
               pk        Qpk/Avg    (H/V)          (dB)         pk     Qpk/Avg   pk     Qpk/Avg    pk      Qpk/Avg
                                               Low Channel
     2390     66.26       57.30       H           -5.47        60.79    43.69    74.0    54.0     13.2       10.3
     2390     63.57       54.17       V           -5.47        58.10    40.56    74.0    54.0     15.9       13.4
     4810     50.34       40.92       H           1.84         52.18    34.61    74.0    54.0     21.8       19.4
     4810     48.59       38.03       V           1.84         50.43    31.72    74.0    54.0     23.6       22.3
    12025     54.07       45.36       H           14.86        68.93    52.08    83.5    63.5     14.6       11.5
    12025     53.16       44.02       V           14.86        68.02    50.74    83.5    63.5     15.5       12.8
                                              Middle Channel
     4880     55.06       46.74       H           2.06         57.12    40.65    74.0    54.0     16.9       13.3
     4880     51.32       41.66       V           2.06         53.38    35.57    74.0    54.0     20.6       18.4
     7320     54.48       46.61       H           7.84         62.32    46.31    74.0    54.0     11.7        7.7
     7320     58.37       50.95       V           7.84         66.21    50.65    74.0    54.0      7.8        3.3
    12200     52.04       42.78       H           15.98        68.02    50.61    83.5    63.5     15.5       12.9
    12200     52.87       43.16       V           15.98        68.85    50.99    83.5    63.5     14.7       12.6
                                              High Channel
   2483.5     72.56       63.01       H           -5.01        67.55    49.85    74.0    54.0      6.5        4.1
   2483.5     70.17       60.63       V           -5.01        65.16    47.47    74.0    54.0      8.8        6.5
    4950      56.82       48.92       H           2.27         59.09    43.05    74.0    54.0     14.9       10.9
    4950      53.06       44.17       V           2.27         55.33    38.30    74.0    54.0     18.7       15.7
    7425      58.67       51.18       H           7.91         66.58    50.94    74.0    54.0      7.4        3.1
    7425      58.16       50.55       V           7.91         66.07    50.31    74.0    54.0      7.9        3.7
   12375      57.73       49.48       H           17.09        74.82    58.43    83.5    63.5      8.7        5.1
   12375      54.81       45.42       V           17.09        71.90    54.37    83.5    63.5     11.6        9.2




ACS Report: 15-0421.W06.1B                       Advanced Compliance Solutions                             Page 21


 Model: 26-7500                    FCC ID: R7PER6R1S4              IC: 5294A-ER6R1S4

7.5.2.4 Sample Calculation:
RC = RU + CFT

Where:
CFT      =     Total Correction Factor (AF+CA+AG)-DC (Average Measurements Only)
RU       =     Uncorrected Reading
RC       =     Corrected Level
AF       =     Antenna Factor
CA       =     Cable Attenuation
AG       =     Amplifier Gain
DC       =     Duty Cycle Correction Factor

Example Calculation: Peak – Antenna Port 0

Corrected Level: 55.10 + 1.84 = 56.94dBuV/m
Margin: 74.0dBuV/m – 56.94dBuV/m = 17.1dB

Example Calculation: Average – Antenna Port 0

Corrected Level: 46.74 + 1.84 - 8.84 = 40.43dBuV
Margin: 54.0dBuV – 40.43dBuV =13.6dB




ACS Report: 15-0421.W06.1B              Advanced Compliance Solutions              Page 22


 Model: 26-7500                           FCC ID: R7PER6R1S4                    IC: 5294A-ER6R1S4

7.6     Maximum Power Spectral Density in the Fundamental Emission – FCC 15.247(e) IC:
        RSS-247 5.2(2)


7.6.1    Measurement Procedure

The power spectral density was measured in accordance with the FCC KDB 558074 D01 DTS
Meas Guidance v03r04 utilizing the PKPSD method. The RF output of the equipment under test
was directly connected to the input of the spectrum analyzer applying suitable attenuation. The
Resolution Bandwidth (RBW) of the spectrum analyzer was set to 3 kHz. The Video Bandwidth
(VBW) was set to 10 kHz. Span was set to 1.5 times the occupied bandwidth. A peak detector
was used.


7.6.2    Measurement Results

                             Table 7.6.2-1: Peak Power Spectral Density
                 Frequency                                  PSD Level
                                                                                          Antenna Port
                   (MHz)                                     (dBm)
                    2405                                       6.97                           Port 0
                    2440                                       7.03                           Port 0
                    2475                                       6.05                           Port 0
                    2405                                       7.09                           Port 1
                    2440                                       7.17                           Port 1
                    2475                                       6.02                           Port 1




          Figure 7.6.2-1: PSD Plot – LCH – Port 0        Figure 7.6.2-2: PSD Plot – MCH – Port 0




ACS Report: 15-0421.W06.1B                      Advanced Compliance Solutions                      Page 23


 Model: 26-7500                        FCC ID: R7PER6R1S4                     IC: 5294A-ER6R1S4




       Figure 7.6.2-3: PSD Plot – HCH – Port 0         Figure 7.6.2-4: PSD Plot – LCH – Port 1




       Figure 7.6.2-5: PSD Plot – MCH – Port 1         Figure 7.6.2-6: PSD Plot – HCH – Port 1




ACS Report: 15-0421.W06.1B                   Advanced Compliance Solutions                       Page 24


    Model: 26-7500                  FCC ID: R7PER6R1S4                  IC: 5294A-ER6R1S4

8     CONCLUSION

In the opinion of ACS, Inc. the 26-7500, provided by Landis+Gyr Technology, Inc., meets the
requirements of FCC Part 15 subpart C and Industry Canada’s Radio Standards Specification
RSS-247.




                                   END REPORT




ACS Report: 15-0421.W06.1B               Advanced Compliance Solutions                Page 25



Document Created: 2016-03-08 15:53:56
Document Modified: 2016-03-08 15:53:56

© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC