GPRO7000 Test Report

FCC ID: DO4GPRO7000

Test Report

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FCCID_152463

VOJTZT
PCTC
Product Compliance Test Center
2476 Swedesford Road, Malvern, PA 19355




             ELECTROMAGNETIC DISTURBANCE TEST REPORT



                             Doc. No. 20010304R/Project No. 605

         TEST STANDARDS: USA CFR 47 PART 15 REQUIREMENTS

              RFID GENERAL PURPOSE READER MODEL 655124
                         FCC ID: DO4GPRO7000

               DIAMOND CHECKPOINT DEVELOPMENT GROUP
                       THOROFARE, NEW JERSEY

                               TEST DATE: 10/20/00 TO 12/6/00

                                     ISSUE: January 19, 2001




  Prepared by:                                         Approved:
                 Paul Banker                                          Wallace E. Amos
                 Technical Staff Engineer                             Group Manager, PCTC/ICC


                       The results described in this report relate only to the item(s) tested.
        This document shall not be reproduced except in full without written permission of Unisys - PCTC.




                           AMERICAN ASSOCIATION FOR LABORATORY ACCREDITATION


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                                           PREFACE

This report documents product testing conducted to verify compliance of the specified EUT with
applicable standards and requirements as identified herein. EUT, test instrument configurations,
test procedures and recorded data are generally described in this report. The reader is referred to
the applicable test standards for detailed procedures. The following table summarizes the test
results obtained during this evaluation.



                                          SUMMARY

The Diamond Checkpoint Development Group, Inc., RFID General Purpose Reader Model
655124 was tested to the standards listed below, and found to have the following characteristics:

           TEST                 STANDARD               REQUIREMENT                  RESULT
   Radiated Emissions -         FCC 15.225,            13 MHz - 1 GHz              Below Limit
    Intentional Radiator          15.209
    Radiated Emissions          FCC Class A         General Requirements           Below Limit
       Digital Device                                 30 MHz - 1 GHz
   Conducted Emissions          FCC 15.207          General Requirements           Below Limit
                                                     450 kHz to 30 MHz
    Frequency Stability         FCC 15.225                ±0.01%                Within Tolerance


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                                                             TABLE OF CONTENTS

1.0     Client Information..................................................................................................................5
 1.1        Requested Service..........................................................................................................................................5
 1.2        Purpose of Test(s) ..........................................................................................................................................5
2.0     Description of the Equipment Under Test (EUT)..................................................................6
 2.1     General Description and Operational Overview ............................................................................................7
 2.2     Equipment Sample .........................................................................................................................................8
    2.2.1    Identification..........................................................................................................................................8
    2.2.2    Condition of Received Sample...............................................................................................................8
3.0     Applicable Requirements, Methods and Procedures .............................................................8
 3.1     Applicable Requirements...............................................................................................................................8
    3.1.1    USA .......................................................................................................................................................8
 3.2     Basic Test Methods and Procedures ..............................................................................................................9
4.0     Deviations or Exclusions from the Requirements and Standards ..........................................9
5.0     Operation of the EUT during Testing ....................................................................................9
 5.1     Test Environment...........................................................................................................................................9
    5.1.1     Climatic Environment ............................................................................................................................9
    5.1.2     Electrical Power.....................................................................................................................................9
    5.1.2.1 Radio Disturbance Measurements..........................................................................................................9
 5.2     Grounding ......................................................................................................................................................9
 5.3     Operating Mode ...........................................................................................................................................10
    5.3.1     Rationale for the Chosen Mode of Operation ......................................................................................10
 5.4     Test Configuration .......................................................................................................................................11
    5.4.1     Test Configuration Block Diagram......................................................................................................11
    5.4.2     EUT Details .........................................................................................................................................12
    5.4.3     Rationale for the Chosen Test Configuration.......................................................................................12
 5.5     EUT Classification.......................................................................................................................................12
 5.6     EUT Modifications ......................................................................................................................................13
6.0     Summary of Tests Performed, Procedures and Test Results ...............................................13
 6.1     Radiated Emission Test................................................................................................................................13
    6.1.1    Radiated Emission Test Procedure ......................................................................................................13
      6.1.1.1 Test Facilities...................................................................................................................................13
    6.1.1.2 Emissions Test Procedure ....................................................................................................................14
    6.1.2    Radiated Emissions Test Results – 30 MHz to 5 GHz (10/20/2000) ...................................................16
    Transmitter fundamental spectral plot .................................................................................................................18
    6.1.3    Radiated Emissions Test Equipment....................................................................................................18
 6.2     Conducted Emission Test ............................................................................................................................19
    6.2.1    Conducted Emission Test Procedure ...................................................................................................19
    6.2.2    Conducted Emissions Test Results 150kHz – 30 MHz (10/30/2000)..................................................21
    6.2.3    Conducted Emissions Test Equipment.................................................................................................22
 6.3     Frequency Stability Test (11/9/00) ..............................................................................................................22
    6.3.1    Frequency Stability Test Procedure .....................................................................................................22
    6.3.2    Frequency Stability Test Results..........................................................................................................23
    6.3.3    Frequency Stability Test Equipment ....................................................................................................23


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                                                INDEX OF PHOTOGRAPHS

Photo 1 – RFID Tag Pad Reader Model 280116 (Front) ................................................................ 6
Photo 2 – RFID Tag Pad Reader Model 280116 (Rear) ................................................................. 6
Photo 3 – Radiated Emissions Test Setup – Front View .............................................................. 15
Photo 4 – Radiated Emissions Test Setup – Rear View ............................................................... 15
Photo 5 – Fundamental Spectral Plot............................................................................................ 18
Photo 6 – Conducted Emissions Test Setup – Front View ........................................................... 20
Photo 7 – Conducted Emissions Test Setup – Front View ........................................................... 20


                                                      INDEX OF FIGURES

Figure 1 – Block Diagram, EUT Configuration for EMI Testing................................................. 11


                                                       INDEX OF TABLES

Table 1 – List of Cable Interconnections ...................................................................................... 11
Table 2 – Equipment Under Test .................................................................................................. 12
Table 3 – Support Equipment ....................................................................................................... 12
Table 4 – Radiated Emissions Data – 1.707 to 30 MHz............................................................... 16
Table 5 – Radiated Emissions Data – 30MHz to 1 GHz -Transmitter Harmonics....................... 17
Table 6 – Radiated Emissions Data 30 MHz to 1 GHz – Digital Circuitry.................................. 17
Table 7 – Radiated Disturbance Test Equipment.......................................................................... 18
Table 8 – Conducted Emissions, RFID General Purpose Reader Model 655124, Neutral line (120
    VAC/60 Hz) .......................................................................................................................... 21
Table 9 – Conducted Emissions, RFID General Purpose Reader Model 655124, Phase Line (120
    Vac/60 Hz) ............................................................................................................................ 21
Table 10 – Temperature Stability Table........................................................................................ 23
Table 11 – Frequency Stability Test Equipment........................................................................... 23


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1.0          Client Information

Client Name:                      Diamond Checkpoint Development Group
                                  550 Grove Road
                                  Thorofare, NJ 08086

Coordinator:                      Anthony Mignogna

PCTC Personnel:                   Paul Banker, Ray Rashied



1.1          Requested Service

•     Measurement of radio disturbance characteristics of sample product to FCC Part 15.225 for
      intentional radiators operating at 13.553 - 13.567 MHz.

•     Measurement of radio disturbance characteristics of sample product to FCC Part 15, Class A
      for unintentional radiators.

•     Measurement of frequency stability characteristics of sample product to FCC Part 15.225 for
      intentional radiators operating at 13.553 - 13.567 MHz.



1.2          Purpose of Test(s)

The purpose of testing was to verify compliance of the sample EUT to regulatory and/or
qualification requirements adhered to by the client for product sale, distribution and use.


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2.0      Description of the Equipment Under Test (EUT)




            Photo 1 – RFID General Purpose Reader Model 655124 (Front)




            Photo 2 – RFID General Purpose Reader Model 655124 (Rear)


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2.1        General Description and Operational Overview

The RFID General Purpose Reader Model 655124 is a Radio Frequency Identification Device. It
can be used in conjunction with any computer that has a RS232/RS485/TTL serial port to form a
complete data retrieval system.

The Model 655124 may be connected to any antenna that has 50-ohm characteristic impedance.
The antenna must be AC coupled. The Q of the antenna can range from 1 to 70. The return loss
should be at least 20 dB for remote mounting applications. The manufacturer of this device,
Diamond Checkpoint Development Group, is marketing the box containing the transmitter and
receiver. The manufacturer will not provide the antenna. The antenna used in this test is a PC
board design consisting of a three-spiral loop measuring 3.5” by 4.75” on the inside loop and 8”
by 8” on the outside loop.

The Model 655124’s function is to “read” MCRF355 passive read-only RFID tags. The
MCRF355 provides 154 bits of non-volatile user memory. When the MCRF355 enters the RF
field of the Model 655124, it is in a tuned state. The tuned circuit of the tag resonates with the
continuous RF field of the 655124 antenna and therefore gathers energy. The tag stores enough
energy to keep the tag circuit powered long enough to transmit its 154 bits of data. The tag’s
data is transmitted in Manchester format at a nominal frequency of 70kHz +/-12kHz.

The tag transmits its data by tuning and de-tuning its resonant circuit. When the RF tag is tuned,
it loads (takes energy from) the reader field. The loading of the reader field shows up as small
amplitude perturbations of the RF reader’s field (backscatter). These perturbations are at 70kHz
and so are easily filtered out of the 13.56MHz carrier of the field. The 70kHz base band data is
amplified for further processing. The raw Manchester data is decoded by the Model 655124’s
micro-controller and sent out over its RS-232 or RS-485 serial port.

The Model 655124 connects to a Personal Computer (HOST PC) via its RS-232 or RS-485 serial
port. The signal type must be factory set; i.e., the factory default setting is RS-232 but can be
changed to RS-485 by appropriate jumper settings. When the RFID tag data is received, the data
is sent to the HOST PC according to the formats discussed in the next section.

In addition to receiving data from the Model 655124 via its serial port, the HOST PC can send
commands to the Model 655124 in order to configure it.
Commands from the HOST PC must always be sent at 9600 baud in order to avoid conflicts.
The Model 655124 can be commanded by the HOST PC to transmit data at one of four baud
rates: 9600 b/s, 19.2k b/s, 28.8 kb/s and 38.4 kb/s.


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2.2        Equipment Sample

2.2.1      Identification

           Description:                   Performa Network
                                          RFID General Purpose Reader Model 655124

           Serial Number:                 Prototype

           Received by PCTC:              October 20, 2000

           Sample Type:                   Pre-production



2.2.2        Condition of Received Sample

The RFID General Purpose Reader Model 655124 was conducted to verify test subject identity
and condition and to ensure suitability for testing. No evidence of physical damages was noticed.
The test item condition was deemed acceptable for the performance of the requested test services.


3.0          Applicable Requirements, Methods and Procedures

3.1          Applicable Requirements

The results of the measurement of the radio disturbance characteristics of the EUT described
herein may be applied, and where appropriate provide a presumption of compliance to one or
more of the following requirements or to other requirement at the discretion of the client,
regulatory agencies, or other entities.


3.1.1        USA

•     47 CFR, part 15, Subpart B, "Unintentional Radiators, General Rules and Regulations".
•     47 CFR, part 15, Subpart C, "Intentional Radiators".


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3.2          Basic Test Methods and Procedures

The applicable regulatory product family or generic standards require that radio disturbance/
interference tests be performed in accordance with the following:

•     C63.4, 1992 “Methods of Measurement of Radio-Noise Emissions from Low-Voltage
      Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz”.



4.0          Deviations or Exclusions from the Requirements and Standards

There were no deviations or exclusions from the requirements.


5.0          Operation of the EUT during Testing

5.1          Test Environment

5.1.1        Climatic Environment

The following were the ambient conditions in the laboratory during testing:

          Temperature:          22o C ± 5o C
          Relative Humidity     50% ± 10% RH


5.1.2        Electrical Power

The EUT was operated at electrical power voltage and frequencies sufficient to ensure that the
measured results were representative of operation of the EUT in the power environments in
which it would be installed, as specified by the client.


5.1.2.1      Radio Disturbance Measurements

Radiated and conducted disturbance measurements were performed with the RFID General
Purpose Reader Model 655124 operating at 120 Vac/60Hz.


5.2          Grounding

Earth grounding of the EUT was accomplished through theRS232 I/O cable shield.


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5.3        Operating Mode

During testing, the General Purpose Reader was continuously transmitting and monitoring for the
presence of an ID tag. A tag was placed in the vicinity of the General Purpose Reader such that it
would continuously detect and transmit data.



5.3.1      Rationale for the Chosen Mode of Operation

The presence of an ID tag, constantly being read and verified, exhibits the full functionality of the
RFID General Purpose Reader Model 655124 as would exist in a customer installation.


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5.4        Test Configuration

5.4.1      Test Configuration Block Diagram

                                                                                                 Fair-rite
                                                                                            p/n 0433167251
                                                                                        (3 turns through core)
                                                         4


                                                 RFID
             RFID Antenna                  General Purpose
           Low Cost Tag Pad                    Reader
          p/n 758599 Rev.*11            Diamond Checkpoint
                                                                                               AC Adapter
                                        Development Group
                                                                                               Model 112103
                                            Model 655124
                                                                                               s/n 0019YW
                                              s/n: none
                                                                                    3


                                                                           Equipment in Test Range (OATS)

                                                                       Equipment out of Test Range (OATS)
                                          2

            120 Vac/60Hz                       25-pin
                                              to 9-pin                  Monitor
                                              adapter
                                                                 ELO Touchsystems
                                   1
                                                                   P284-HL5870A-S
                                                                s/n MEIHA707505962



                                       Gender
                                       Changer
                                                                         PC                                            Mouse
                                                                                                                    Kensington
                                                                  Dell Systems                                      ValueMouse
                                                              Poweredge 2000 SMS                                      3-button
                                                                                                                       #19410
                                                                    s/n BH350                                    s/n A99 2525730


                                                                   Keyboard
                                                                Dell AT101W
                                                             s/n 1273-834-4611



                Figure 1 – Block Diagram, EUT Configuration for EMI Testing


                               Table 1 – List of Cable Interconnections
#      Description             Manufacturer                         Part Number                 Length              Shielding
1      RS232 Cable               Belken                              F2L088-06                    6’                  Foil
2        RS232                   Unisys                              2820468-38                  25’                  Braid
        Extension
3     DC Power cable       Diamond Checkpoint                         Unknown                        6’                 None
4     Antenna Cable        Diamond Checkpoint                         Unknown                       10”                 BNC


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5.4.2      EUT Details
                                Table 2 – Equipment Under Test
  Item Description            Manufacturer              Model Number             Serial Number
RFID General Purpose       Diamond Checkpoint              655124                       -
       Reader
     AC Adapter            Diamond Checkpoint               112103                  0019YW

                                 Table 3 – Support Equipment
  Item Description            Manufacturer            Model Number              Serial Number
 Personal Computer            Dell Systems          Poweredge 2000 SMS              BH350
       Monitor              ELO Touchsystems         P284-HL5870A-S            MEIHA707505962
      Keyboard                Dell Systems               AT101W                 1273-834-4611
        Mouse                  Kensington           ValueMouse 3-button          A99 2525730
   Gender Changer                Belken                   F4A251                       -
25-pin to 9-pin adapter          Roline                      -                         -


5.4.3      Rationale for the Chosen Test Configuration

The configuration of the RFID General Purpose Reader Model 655124 was chosen to demonstrate
the emission characteristics of both the RS232 interface and the Ethernet interface. Both I/O ports
were exercised during testing. The AC Adapter used is the model sold with the RFID General
Purpose Reader Model 655124. The antenna connected to the transmitter/receiver is a PCB from
the RFID Tag Pad Reader. It is the intent of the manufacturer not to sell an antenna with the unit
but allow a potential customer to design and test an antenna. The antenna used in this test is not to
be marketed with the RFID General Purpose Reader Model 655124.
The orientation of the antenna, in a vertical plane, was chosen because the highest emissions were
measured in this configuration.



5.5        EUT Classification

The test item has been defined an intentional radiator operating in the band 13.553 MHz to
13.567 MHz. For this reason the emissions testing was carried out in accordance with the
requirements of FCC 15.225. In addition, the test item contains digital control and signal
processing circuitry. Signals identified as related to the digital circuitry were compared to the
FCC Class A limits for digital devices.


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5.6        EUT Modifications

A block of ferrite was attached to the DC power cable, from the AC Adapter. The ferrite block
has a part number of 0433167251 and is manufactured by Fair-Rite. The DC wire, from the AC
Adapter, was passed through the core of the block three times and was attached four inches from
the General Purpose Reader’s, DC connector.


6.0        Summary of Tests Performed, Procedures and Test Results

6.1        Radiated Emission Test

6.1.1      Radiated Emission Test Procedure

6.1.1.1    Test Facilities

The test site is an all-weather, open-field measurement facility defined by an elliptical area of
3258 square meters, which is free of reflective metallic objects and extraneous electromagnetic
signals. A non-metallic A-Frame enclosure covers 172 square meters of the ellipse. This
enclosure contains a ground level 5-meter diameter turntable, capable of rotating equipment
through a complete 360 degrees, and a 3-meter and 10 meter test range with remotely controlled
antennae masts. The floor of the A-Frame and surface of the turntable are covered with a flat
metal continuous ground plane. The ground plane extends outside the A-Frame to a distance of
35.6 meters from the center of the turntable. The width of the extension is 2.4 meters.

The ground plane is partially covered with protective insulating material. A cellar located
beneath the ground level of the A-Frame structure houses personnel and instrumentation for
remote control of the antennae, the turntable, and other equipment above ground level.
Reference the attached drawing for a view of the test facility. The test site complies with the
Attenuation Measurements specified in ANSI C63.4 - 1992, and is registered with FCC, and
accredited by AALA, VCCI, BSMI, and NEMKO.

For electric field radiated emissions, the EUT and support peripherals or devices required to
facilitate EUT operation were positioned either directly on the turntable surface or on a wooden
table 80 cm. in height, depending on the size of the sample. Hardware not needed in the test field
such as remote terminals or non standard exercisers, were placed in the basement below the
turntable


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6.1.1.2    Emissions Test Procedure

9kHz to 30 MHz

Testing below 30 MHz was performed with the test item configured on the test site as above. An
H-field measuring antenna was placed at a distance of 30 meters from the test item. The height
of the antenna is 1 meter above the ground plane. The test item was rotated 360° in order to
obtain a maximum indication on the measuring receiver. This was repeated for each of the three
polarization of the antenna. In some cases the measuring antenna was taken off the ground plane
and placed in the adjacent grass area. The position of the antenna relative to the ground plane
was noted in the reported data.

30 MHz to 1000 MHz

Initial measurements, for the purpose of identifying suspect emissions from the equipment under
test, were performed by dividing the test frequency range into the following twenty bands:

          1)     30 - 40 MHz           8)    108 - 148 MHz        15)    570 - 670 MHz
          2)     40 - 50 MHz           9)    148 - 165 MHz        16)    670 - 770 MHz
          3)     50 - 88 MHz          10)    165 - 200 MHz        17)    770 - 855 MHz
          4)     88 - 93 MHz          11)    200 - 300 MHz        18)    855 - 875 MHz
          5)     93 - 98 MHz          12)    300 - 450 MHz        19)    875 - 892 MHz
          6)     98 - 103 MHz         13)    450 - 470 MHz        20)    892 - 1000 MHz
          7)    103 - 108 MHz         14)    470 - 570 MHz

Each of these bands was monitored on a spectrum analyzer display while the turntable was
initially positioned at the reference 0-degree point. A mast mounted broadband antenna was
located at a distance of 10 meters from the periphery of the EUT(s). The antenna was set to 1-
meter height, for the vertical polarity and 2.5 meters height, for horizontal polarity for these
suspect emission scans. All emissions with amplitudes 8 dB or less below the appropriate
regulatory limit were identified and saved for later source identification and investigation. This
initial suspect identification procedure was repeated for turntable positions of 90, 180 and 270
degrees.

The source of questionable emissions was verified by powering off the EUT(s). Those emissions
remaining were removed from the suspect list. Valid suspect emissions were then maximized
through cable manipulation. The highest six signals or all within 4 dB of the limit, identified
during this initial investigation, were then maximized by rotating the turntable through a
complete 360 degrees of azimuth and raising the antenna from 1 to 4 meters of elevation. When
the EUT(s) azimuth, antenna height and polarization that produced the maximum indication were
found, the emission amplitude and frequency were re-measured to obtain maximum peak and
quasi-peak field strength. The frequencies and amplitudes of RFI emissions are recorded in this
report in units derived as follows:

Field Strength (dBuV/m) = Meter reading (dBuV)+ Antenna factor (dB/m)+ Cable Loss (dB)


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               Photo 3 – Radiated Emissions Test Setup – Front View




               Photo 4 – Radiated Emissions Test Setup – Rear View


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6.1.2       Radiated Emissions Test Results – 30 MHz to 5 GHz (10/20/2000)

Transmitter related signals 13 - 30 MHz - FCC 15.225, 15.209

The table below shows the detected field strengths as measured from the test sample(s) over the
frequency range from 13 MHz to 30 MHz. The emissions were measured at a distance of 10
meters and compared to the maximum permissible FCC limit at extrapolated (using limit -
20log(10/30) = limit +9.5 dB) to 10 meters for signals and harmonics of an intentional radiator.
Notes: Signals were measured with antenna on ground plane. Preliminary testing showed the
field strength decreased more than 20 dB/decade. Thus the 20-dB/decade correction used during
final testing was judged to be acceptable.

                    Table 4 – Radiated Emissions Data – 1.707 to 30 MHz
     Freq     Height,    Angle     Quasi      Corr’     Field      FCC Class     Delta      Result
    [MHz]       Pol      [Deg]     Peak      Factor    Strength    B Limit @     Limit
             [cm H/V]             Voltage    [dB/m    [dBuV/m]        10m        [dB]
                                  [dBuV]         ]                 [dBuV/m]
    13.56     100 V       279       60.5       -1.2      59.3         89.5       -29.0      Below
                                   (PK)                                                  15.225 limit
    27.12     100 V       279       20.2       1.7       21.9         39.0       -17.1      Below
                                   (QP)                                                  15.209 limit

•    Overall Result: All measured transmitter related radiated emissions below 30 MHz from the
     RFID General Purpose Reader Model 655124 are below the FCC limits by a margin of 17.1
     dB.


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Transmitter related signals 30 to 1000 MHz - FCC 15.209

Transmitter related radiated emission signals were measured at a distance of 3 meters from the
test sample(s) over the frequency range from 30 MHz to 1000 MHz. The levels were then
compared to the maximum permissible FCC limit at 3 meters for spurious signals and harmonics
of an intentional radiator. Transmitter harmonics from the RFID General Purpose Reader Model
655124 are below the FCC 15.209 general radiation limits by a margin of 13 dB.

        Table 5 – Radiated Emissions Data – 30MHz to 1 GHz -Transmitter Harmonics

     Freq       Height,    Angle     Quasi     Corr’     Field     FCC Class     Delta      Result
    [MHz]         Pol      [Deg]     Peak     Factor    Strength   B Limit @     Limit
               [cm H/V]             Voltage   [dB/m    [dBuV/m]       3m         [dB]
                                    [dBuV]       ]                 [dBuV/m]
    40.645       101, V     124       14.5     11.8       26.3        40.0       -13.7    Below limit
    67.801       103, V     152       7.9      10.9       18.8        40.0       -21.2    Below limit
    176.321      103, V     244        3.7     11.8       15.5        43.5       -28.0    Below limit
    189.860      149, H     043       12.2     12.9       25.1        43.5       -18.4    Below limit
    203.397      128, H     034       12.3     13.0       25.3        43.5       -18.2    Below limit
    216.968      131, H     038       14.0     11.7       25.7        46.0       -20.3    Below limit

•  Overall Results: The RFID General Purpose Reader Model 655124 complied with the
   requirements of 47 CFR Part 15B for Class B equipment by a margin of at least 13.7 dB.
Digital circuitry related signals 30 to 1000 MHz - FCC 15.109b

The table below shows the detected field strengths as measured from the test sample(s) over the
frequency range from 30 MHz to 1000 MHz, at a distance of 10 meters compared to the
maximum permissible FCC Class A limit.

              Table 6 – Radiated Emissions Data 30 MHz to 1 GHz – Digital Circuitry
     Freq       Height,    Angle     Quasi     Corr’   Field   FCC Class         Delta       Result
    [MHz]         Pol      [Deg]     Peak      Factor Strength A Limit @         Limit
               [cm H/V]             Voltage   [dB/m] [dBuV/m]     10m            [dB]
                                    [dBuV]                     [dBuV/m]
    33.911       100, V     000       1.0       18.2    19.2     39.08           -19.9    Below limit
    79.391       100, V     000       5.4       10.9    16.3     39.08           -22.8    Below limit
    134.996      100, V     000       -1.7      12.5    10.8     43.52           -32.7    Below limit
    238.006      100, V     000       -0.6      14.7    14.1     46.44           -32.3    Below limit
    479.997      100, V     000       -1.3      20.8    19.5     46.44           -26.9    Below limit
    682.694      100, V     000       -0.4      24.5    24.1     46.44           -22.3    Below limit

•    Overall Results: The RFID General Purpose Reader Model 655124 did not produce any
     measurable interference related to digital circuitry at a distance of 10 meters. Therefore,
     noise floor readings were measured.


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                                                         FCC ID: DO4GPRO7000


Transmitter fundamental spectral plot

This picture is the fundamental frequency of 13.56 MHz displayed on a spectrum analyzer using
a resolution bandwidth of 1 kHz.




                            Photo 5 – Fundamental Spectral Plot


6.1.3     Radiated Emissions Test Equipment


                      Table 7 – Radiated Disturbance Test Equipment

Equipment                         Model         Manufacturer          ID No.    Last Cal Date
QuasiPeak Adapter                85650A         Hewlett Packard        U182        3/3/00
(10 kHz – 1 GHz)


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                                                        FCC ID: DO4GPRO7000

Spectrum Analyzer Display        85662A         Hewlett Packard        U181        3/2/00

Spectrum Analyzer                8568B          Hewlett Packard        X718        3/2/00
(10 kHz - 1.5 GHz)

RF Receiver                       ESV               Polorad            U965        8/3/00

Magnetic Field Antenna         BBH 500/B       Antenna Research       V640        11/05/99
(300 Hz to 100 MHz)                               Associates

Bi-Log Antenna                  LFB-2520             ARA              B-962        6/23/99
(25 MHz to 1000 MHz)                                                              (extended to
                                                                                   12/23/00)



6.2       Conducted Emission Test

6.2.1     Conducted Emission Test Procedure

Peak amplitude terminal voltage emissions at the power line input to the EUT(s) were measured
with a spectrum analyzer, using a peak detector and the appropriate CISPR bandwidth, connected
to the RF output of a 50 Ohm, 50 micro-henry Line Impedance Stabilization Network (LISN)
installed in each power line. Measurements were made over the frequency range from 150 kHz
to 30 MHz while the EUT(s) was operating as described in paragraph 5.3.

The significant amplitudes of emissions measured on the AC power lines of the EUT(s) are
recorded in this report in units derived as follows:

Peak Emission (dBuV PK) = Meter reading (dBuV) + LISN factor (dB) + Limiter Loss (dB)

Note: For speed and convenience, a spectrum analyzer employing a peak detector was used as
the measuring receiver to sweep through and record the spectrum. As a tool to judge compliance
of the emissions, the peak detector sweep is displayed and graphed against the appropriate
average limit. This type of measurement is valid given that the peak reading will always be
greater than or equal to the average or quasi-peak reading. Peak emissions recorded with the
spectrum analyzer that exceed the average limit, or are found to be within 1 dB of the average
limit are re-measured using an manually tuned receiver with the detector function first set to
quasi-peak and then to average. These measurements are recorded and presented in the Section
6.2.2 of this report.


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PCTC                                             Page 20 of 24, 3/21/01
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                                                 FCC ID: DO4GPRO7000




              Photo 6 – Conducted Emissions Test Setup – Front View




              Photo 7 – Conducted Emissions Test Setup – Front View


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                                                         FCC ID: DO4GPRO7000


6.2.2         Conducted Emissions Test Results 150kHz – 30 MHz (10/30/2000)

The conducted emissions recorded on the AC power cord of the RFID General Purpose Reader
Model 655124, displayed against the limits for FCC Class B devices are presented as below. The
quasi-peak detector reading exceeded the average detector reading for each frequency by more
than 6 dB. Therefore according to 47 CFR Part 15.207 (d), the quasi-peak reading is reduced by
13 dB.

Table 8 – Conducted Emissions, RFID General Purpose Reader Model 655124, Neutral line
 (120 VAC/60 Hz)
    Frequency     Quasi-peak   Correction   Corrected    Broadband     FCC Class B QP Limit
      (MHz)        Emission     Factor        Level      Adjustment       Limit     Margin
                  Amplitude      (dB)        (dBuV)       -13 dB         (dBuV)      (dB)
                    (dBuV)
   .46118         32.73        10.453        43.183         30.18         47.96      -17.78
   .48373         32.38        10.440        42.820         29.82         47.96      -18.14
   .50963         31.76        10.424        42.184         29.18         47.96      -18.78
   .53749         30.93        10.408        41.338         28.34         47.96      -19.62
   .56227         29.93        10.390        40.320         27.32         47.96      -20.64
  2.10304         16.77        10.171        26.941        26.94*         47.96      -47.96
*Signal is narrow band, adjustment not allowed

Table 9 – Conducted Emissions, RFID General Purpose Reader Model 655124, Phase Line
(120 Vac/60 Hz)

 Frequency       Quasi-Peak    Correction   Corrected    Broadband     FCC Class    QP Limit
   (MHz)          Emission      Factor        Level      Adjustment     B Limit      Margin
                 Amplitude       (dB)        (dBuV)       -13 dB        (dBuV)        (dB)
                   (dBuV)
     .46653         29.04        10.447      39.487         26.49        47.96       -21.47
     .52947         30.21        10.402      40.612         27.61        47.96       -20.35
     .54307         30.62        10.394      41.014         28.01        47.96       -19.95
     .57654         31.19        10.374      41.564         28.56        47.96       -19.40
     .61085         30.55        10.349      40.899         27.90        47.96       -20.06
     .63643         29.25        10.324      39.574         26.57        47.96       -21.39


•    Overall Results: All conducted emissions measured on the input AC power lines of the RFID
     General Purpose Reader Model 655124, are below the FCC Class B limit by a margin of 17.78
     dB.


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Product Compliance Test Center                          Doc. No. 20010304R/Project No. 605
                                                        FCC ID: DO4GPRO7000


6.2.3     Conducted Emissions Test Equipment

The following equipment was used during conducted disturbance testing of the EUT.

Equipment                        Model         Manufacturer          ID No.   Last Cal Date
QuasiPeak Adapter               85650A         Hewlett Packard        X717       3/2/00
(10 KHz – 1 GHz)

Spectrum Analyzer Display       85662A          Hewlett Packard       U181          3/2/00

Spectrum Analyzer                8568B         Hewlett Packard        X718          3/2/00
(10 kHz - 1.5 GHz)

LISN                              8121           Schwarzbeck          U774          2/2/00

6.3       Frequency Stability Test (11/9/00)

6.3.1     Frequency Stability Test Procedure

The test sample was placed in an environmental chamber at 20°C and allowed to stabilize
(minimum 30-minute soak). The nominal operating frequency was measured at this time with a
small loop probe connected to a spectrum analyzer.

The test sample was then powered off and allowed to stabilize. With the AC input voltage at
115% of nominal, the test sample was powered on and operating frequency measurements were
made at 0, 2, 5 and 10 minutes after power on. This procedure was repeated for all required


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                                                         FCC ID: DO4GPRO7000


6.3.2       Frequency Stability Test Results

The following table shows the frequency deviation measured on a sample of the transmitter board
compared to FCC 15.225 limits of .01% with respect to temperature and input AC voltage.

                           Table 10 – Temperature Stability Table

           Condition          Time[min]        Frequency[Hz]       % Deviation       Result
                                                                  from nominal
         20°C/122VAC             N/A            13560002              N/A             N/A
           (Nominal)
         20°C/138 VAC             0             13560002           <<0.01%         Below limit
        (115% Nom AC)
                                  2             13560001           <<0.01%         Below limit
                                  5             13560002           <<0.01%         Below limit
                                  10            13560003           <<0.01%         Below limit
        20°C/102 VAC              0             13560002           <<0.01%         Below limit
        (85% Nom AC)
                                  2             13560003           <<0.01%         Below limit
                                  5             13560004           <<0.01%         Below limit
                                  10            13560005           <<0.01%         Below limit
        50°C/122 VAC              0             13560003           <<0.01%         Below limit
         (High Temp)
                                  2             13560003           <<0.01%         Below limit
                                  5             13559998           <<0.01%         Below limit
                                  10            13559992           <<0.01%         Below limit
        -20°C/122 VAC             0             13560003           <<0.01%         Below limit
          (Low Temp)
                                  2             13560000           <<0.01%         Below limit
                                  5             13555994           <<0.01%         Below limit
                                  10            13559995           <<0.01%         Below limit

•   Overall Results: The RFID General Purpose Reader Model 655124 complied with the
    requirements of FCC 15.225 for frequency stability by a worst case deviation of 11 Hz or
    100*11/13560002 = 0.8112E-4 %.

6.3.3       Frequency Stability Test Equipment


                        Table 11 – Frequency Stability Test Equipment

Equipment                        Model            Manufacturer         ID No.    Last Cal Date
Temperature/Humidity             SM32C             Thermotron           V733        6/21/00


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PCTC                                        Page 24 of 24, 3/21/01
Product Compliance Test Center              Doc. No. 20010304R/Project No. 605
                                            FCC ID: DO4GPRO7000

Chamber

Spectrum Analyzer Display   85662A   Hewlett Packard    Y0314        3/3/00

Spectrum Analyzer           8566B    Hewlett Packard    Y0313        3/3/00
(100 Hz - 22 GHz)

Multimeter                   8021        Fluke           X743      10/21/00

Variable Transformer        136-2       Powerstat       W582          N/R



Document Created: 2001-05-31 13:24:24
Document Modified: 2001-05-31 13:24:24

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