Test Report

FCC ID: PQZDYM-3000

Test Report

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 KTI02EF04002                                                         FCC ID : PQZDYM-3000


                  Korea Technology Institute Co., Ltd.                                     Page 2 of 13



                                             Test Report
Test Report No.:             KTI02EF04002

Registration No.:            99058

Applicant:                      Digital Device, Inc.
                                 th
Applicant Address:           4 FL.,HanWha B/D 78-1 Karakdong Songpagu Seoul,Korea

Product:                     MP3 Player

FCC ID:                      PQZDYM-3000                  Model No.            DYM-3000

Receipt No.:                 02-0275                      Date of receipt:     April 03,2002

Date of Issue:                  April 25, 2002
                             Korea Technology Institute Co., Ltd.
Testing location
                             51-19, Sanglim3-Ri, Docheok-Myeun, Gwangju-Shi, Gyeungki-Do, Korea
Test Standards:              ANSI. C63.4 : 1992

Rule Parts:                  FCC Part 15, Subpart B

Equipment Class:             Computing Device

Test Result:                 The above mentioned product has been tested and passed.
           Tested by: M.H.Jang/ Engineer                     Approved by: G. C. Min/ President




                    Signature         Date                      Signature        Date

Other Aspects :

Abbreviations :              • OK, Pass=passed • Fail=failed        • N/A=not applicable

      ▪ This test report is not permitted to copy partly without our permission.
      ▪ This test result is dependent on only equipment to be used.
      ▪ This test result is based on a single evaluation of one sample of the above mentioned.
      ▪ This test report must not be used by the client to claim product endorsement by NVLAP or
          any agency of the U.S Government.
      ▪ We certify this test report has been based on the measurement standards that is traceable to
          the national or international standards.


KTI02EF04002                                                         FCC ID : PQZDYM-3000


                  Korea Technology Institute Co., Ltd.                                Page 2 of 13


                                                Contents
                Contents                                                         2
                List of Tables                                                   2
                List of Figures                                                  2
                List of Photographs                                              2
   1.           General                                                          3
        2.      Test Site                                                        3
                2.1 Location                                                     3
                2.2 List of Test and Measurement Instruments                     4
                2.3 Test Data                                                    4
                2.4 Test Environment                                             4
   3.           Description of the tested samples                                5
                3.1 Rating and Physical characteristics                          5
                3.2 Submitted documents                                          5
   4.           Measurement conditions                                           6
                4.1 Modes of operation                                           6
                 4.2 List of peripherals                                          6
                4.3 Uncertainty                                                  6
                4.4 Test Setup                                                   7
   5.           Emission Test                                                    8
                5.1 Conducted Emissions                                          8
                5.2 Radiated Emissions                                           12
   6.           Photographs of the Test Set-up                                   14
Annex1          Label                                                            16
Annex2          Photographs of EUT                                               18~20
   List of Tables

   Table 1                  List of test and measurement equipment               4
        Table 2              Test Data. Conducted Emissions                      11
             Table 3              Test Data. Radiated Emissions                  13
   List of Figures
             Figure 1             Spectral Diagram, LINE-PE                      9
             Figure 2             Spectral Diagram, Neutral-PE                   10
   List of Photographs
 Photograph 1               Setup for Radiated Emissions                         14
   Photograph 2             Setup for Conducted Emissions                        15


KTI02EF04002                                                    FCC ID : PQZDYM-3000


            Korea Technology Institute Co., Ltd.                                  Page 3 of 13




1. General

This equipment has been shown to be capable of compliance with the applicable technical
standards and was tested in accordance with the measurement procedures as indicated in this
report.




We attest to the accuracy of data.           Korea Technology Institute Co., Ltd. performed all
measurements reported herein. And were made under Chief Engineer’s supervisor.
We assume full responsibility for the completeness of these measurements and vouch for the
qualifications of all persons taking them.




2. Test Site


Korea Technology Institute Co., Ltd.




2.1 Location

51-19, Sanglim3-Ri, Docheok-Myeun, Gwangju-Shi, Gyeungki-Do, Korea




The Test Site is in compliance with ANSI C63.4/1992 for measurement of radio Interference.


KTI02EF04002                                          FCC ID : PQZDYM-3000


             Korea Technology Institute Co., Ltd.                        Page 4 of 13




2.2 List of Test and Measurement Instruments

Table 1: List of Test and Measurement Equipment

- Conducted Emissions
         Kind of Equipment             Type        S/N       Calibrated until

         Spectrum Analyzer            R3261C     61720417        11.2002

        Field Strength Meter           ESPC     832827/011       9.2002

                LISN                  KNW407     8-1157-2        10.2002

                LISN                  ESH2-Z5   8254601019       6.2002

          Conducted Cable               N/A        N/A           11.2002


- Radiated Emissions
         Kind of Equipment             Type        S/N       Calibrated until

        Field Strength Meter           ESPC     832827/011       9.2002
         Spectrum Analyzer            R3261C     61720417        11.2002
            Pre Amplifier             8447D     2944A06874       11.2002
         BiconiLog Antenna            3142B        1705          12.2002

            Horn Antenna               3115        6443          7.2002

          Open Site Cable               N/A        N/A             N/A

            Antenna Mast              DETT-03      N/A             N/A

        Antenna & Turntable
                                      DETT-04    91X519            N/A
              controller


2.3 Test Date
Date of Application: April 11, 2002
Date of Test: April 18, 2002


2.4 Test Environment
See each test item’s description.


KTI02EF04002                                           FCC ID : PQZDYM-3000


               Korea Technology Institute Co., Ltd.                    Page 5 of 13




3. Description of the tested samples

The EUT is MP3 Player.


3.1. Rating and Physical Characteristics

•   Equalizer Control: Normal/ Classic / Jazz /Rock
•   Diverse play mode: Repeat / Repeat all
•   File download: USB interface
•   Main memory: 32MB/64MB/128M Flash memory
•   Expansion memory: 16MB/32MB/64M/128M/SMC(Option)
•   Play time: 33min(128K bps),66min(64k bps)
•   S/N ratio: 90dB or better
•   Frequency Range: 20Hz-20kHz
•   THD: 0.001%- 0.1%
•   Download speed: 3M bps or better
•   Voice recording: G729 method(16Min./1MB)
•   Power supply: One “AAA” size 1.5V battery
•   Weight: 55g
•   Dimension: 58mm x 65mm x 17mm(L x H x D)
•   - Focus length: 6.0 mm
•   - PC interface: 1.8m USB cable
•   - Dimension (W*H*D): 32mm x 62mm x 32mm


3.2. Submitted Documents

- User’s Guide
- Block Diagram


KTI02EF04002                                                      FCC ID : PQZDYM-3000


             Korea Technology Institute Co., Ltd.                                Page 6 of 13




4. Measurement Conditions

Testing Input Voltage: AC 230V/DC 5V/450mA


4.1 Modes of Operation
The EUT was in the following operation mode during all testing;
1. Download mode from PC.




4.2 Additional Equipment
  DEVICE TYPE             Manufacturer           M/N                  S/N          FCC ID

                    COMPAQ COMPUTER
        PC                                   Deskpro EXM      6F13JC8JN619           -
                       CORPORATION

      Monitor       Samsung Electronics         750S         P223HVAR502035          -

                    COMPAQ COMPUTER
     Keyboard                                  KB-9963      B26960GBUKKOVW           -
                       CORPORATION

      Mouse                 logitech           M-S48a                None        JNZ201213

      Mouse         SEJIN ELECTRON INC.       SMB-400             0CIM004047     GJJS965M3

      Printer       HEWLETT PACKARD            C4569A             SG6A7160PJ         -




4.3 Uncertainty
1) Radiated disturbance
  Uc (Combined standard Uncertainty) = ± 1.8dB
  Expanded uncertainty U=KUc
  K=2
    U = ± 3.6dB
2) Conducted disturbance
  Uc = ± 0.88dB
  U = KUc=2 x Uc = ± 1.8dB


KTI02EF04002                                FCC ID : PQZDYM-3000


           Korea Technology Institute Co., Ltd.            Page 7 of 13



4.4 Test Setup




                 PRINTER
                             PC                MONITER



                                      EUT
         Signal Line




               MOUSE       KEYBOARD          MOUSE


KTI02EF04002                                                      FCC ID : PQZDYM-3000


            Korea Technology Institute Co., Ltd.                                    Page 8 of 13




5. EMISSION Test
5.1.Conducted Emissions


Result:                                                                                Pass
The line-conducted facility is located inside a 2.3M x 3.5M x 5.5M shielded closure.
The shielding effectiveness of the shielded room is in accordance with MIL-Std-285 or NSA 605-
05. A 1m x 1.5m wooden table 80cm high is placed 80cm away from the conducting ground plane
and 40cm away from the sidewall of the shielded room. Rohde & Schwarz Model ESH2-Z5 (9kHz-
30MHz)50ohm/50 uH Line-Impedance Stabilization Networks (LISN) are bonded to the shielded
room.
The EUT is powered from the Rohde & Schwarz LISN and the support equipment is powered
from the Rohde & Schwarz LISN. Power to the LISN are filtered by a high-current high-insertion
loss shield enclosures power line filters (100dB 14kHz-1GHz).
The purpose of the filter is to attenuate ambient signal interference and this filter is also bonded
to the shielded enclosure.
All electrical cables are shielded by braided tinned copper zipper tubing with inner diameter of
1/2”.
If the EUT is a DC-Powered device, power will be derived from the source power supply it
normally will be powered from and this supply lines will be connected to the Rohde & Schwarz
LISN.
All interconnecting cables more than 1 meter were shortened by non-inductive bundling
(serpentine fashion) to a 1-meter length.
Sufficient time for the EUT, Support equipment, and test equipment was allowed in order for
them to warm up to their normal operating condition. The RF output of the LISN was connected
to the spectrum analyzer to determine the frequency producing the maximum EME from the EUT.
The spectrum was scanned from 450kHz to 30MHz with 100msec. Sweep time.
The frequency producing the maximum level was reexamined using EMI field Intensity meter
(ESPC) and Quasi-Peak adapter. The detector function was set to CISPR quasi-peak mode.
The bandwidth of the receiver was set to 10kHZ. The EUT, support equipment, and
interconnecting Each emission was maximized by: switching power lines; varying the mode of
operation or resolution; clock or data exchange speed; if applicable; whichever determined the
worst-case emission.
Photographs of the worst-case emission can be seen in photograph of conducted test.
Each EME reported was calibrated using self-calibrating mode.


KTI02EF04002                            FCC ID : PQZDYM-3000


            Korea Technology Institute Co., Ltd.        Page 9 of 13




Figure 1: Spectral Diagram, LINE-PE


KTI02EF04002                             FCC ID : PQZDYM-3000


           Korea Technology Institute Co., Ltd.         Page 10 of 13




Figure 2: Spectral Diagram, NEUTRAL-PE


KTI02EF04002                                                      FCC ID : PQZDYM-3000


            Korea Technology Institute Co., Ltd.                                 Page 11 of 13




Table 2: Test Data, Conducted Emissions


 Frequency             (1) Reading             Line             (2) Limit       (3) Margin
    (MHz)                (dBµV)                                  (dBµV)            (dB)

     0.58                31.82                 L1                                 16.18

     4.02                33.85                 L1                                 14.15

     5.28                32.40                 L1                                 15.60

     5.51                34.30                 L2                  48             13.70

     5.65                43.42                 L1                                  4.60

    12.25                33.03                 L1                                 14.97
    14.65                31.01                 L1                                 16.99


NOTES:
                  1. All modes of operation were investigated
                     And the worst-case emissions are reported.
                  2. All other emissions are non-significant.
                  3. All readings are calibrated by self-mode in receiver.
                  4. Measurements using CISPR peak mode.
                  5. L1 = LINE-PE, L2 = NEUTRAL-PE
                  6. C/F = Correction Factor
                  7. C/L = Cable Loss
                  8. The limit for Class B digital device is 250 uV (48dBuV)
               from 450KHz to 30MHz




♠ Margin Calculation


(6) Margin = (2) Limit – (1) Reading


KTI02EF04002                                                    FCC ID : PQZDYM-3000


             Korea Technology Institute Co., Ltd.                                Page 112 of 13




5.2 Radiated Emissions


Result:                                                                Pass

Preliminary measurements were made indoors at 1 meter using broadband antennas, broadband
Amplifier, and spectrum analyzer to determine the frequency producing the maximum EME.
Appropriate precaution was taken to ensure that all EME from the EUT were maximized and
Investigated. The system configurations, clock speed, mode of operation or video resolution,
turntable azimuth with respect to the antenna were noted for each frequency found.
The spectrum was scanned from 30 to 1000 MHz using biconiLog antenna. Above 1 GHz, linearly
polarized double ridge horn antennas were used.


Final measurements were made outdoors at 3-meter test range using biconiLog and horn
antenna. The test equipment was placed on a wooden table situated on a 4x4 meter area
adjacent to the measurement area. Turntable was to protect from weather in the dome that made
with Polyethylene film. Sufficient time for the EUT, support equipment, and test equipment was
allowed in order for them to warm up to their normal operating condition. Each frequency found
during pre-scan measurements was re-examined and investigated using EMI/Field Intensity
Meter (ESPC) R & S. The detector function was set to CISPR quasi-peak mode and the bandwidth
of the receiver was set to 120kHz or 1 MHz depending on the frequency or type or signal.


The EUT, support equipment and interconnecting cables were re-configured to the set-up
producing the maximum emission for the frequency and were placed on top of a 0.8meter high
non-metallic 1 x 1.5 meter table.
The EUT, support equipment, and interconnecting cables were re-arranged and manipulated to
maximize each EME emission. The turntable containing the system was rotated; the antenna
height was varied 1 to 4 meters and stopped at the azimuth or height producing the maximum
emission. Each emission was maximized by: varying the mode of operation or resolution; clock
or data exchange speed, and/or support equipment, if applicable; and changing the polarity of
the antenna, whichever determined the worst-case emission.
Photographs of the worst-case emission can be seen in photograph of radiated emission test.
Each EME reported was calibrated using self-calibrating mode.


KTI02EF04002                                                        FCC ID : PQZDYM-3000


               Korea Technology Institute Co., Ltd.                                   Page 13 of 13




Table 3: Test Data, Radiated Emissions
                                               (1)         (2)       (3)        (4)          (5)
 Frequency              Height    Angle
                 Pol.                        Reading      AFCL      Actual     Limit       Margin
   (MHz)                 [m]          [° ]
                                             (dBµV)       (dB/m)   (dBµV/m)   (dBµV/m)       (dB)
   45.15          V      3.55         38      9.35         13.4     22.75                   17.25
   112.90         H      3.43         327     9.43         13.2     22.63        40         17.37
   135.50         V      3.26         96      9.70         12.4     22.10                   17.90
   144.02         H      3.55         264     11.70        13.9      25.6                   17.90
                                                                                43.5
   203.25         V      2.89         326     7.89         16.1     23.99                   19.51
   361.31         V      2.30         65      15.90        22.0     37.90                    8.10
                                                                                 46
   383.90         H      2.03         39      13.50        22.9     36.40                    9.60
* Radiated Measurements at 3-meters


Notes:
        1.All modes of operation were investigated.
            And the worst-case emission are reported.
        2.All other emission is non-significant.
        3.All readings are calibrated by self-mode in receiver.
        4.Measurements using CISPR quasi-peak mode.
        5.AFCL = Antenna factor and cable loss
        6.H = Horizontal, V = Vertical Polarization
        7. The limit for Class B digital device is 100uV(40dBuV) from 30MHz to 88MHz,
        150 uV (43.5dBuV) from 88MHz to 216MHz, 200uV(46dBuV) from 216MHz to 960MHz
            and 500 uV (54dBuV) from above 960MHz.


♠ Margin Calculation
(5) Margin = (4) Limit – (3) Actual
                  [(3) Actual = (1) Reading + (2) AFCL]



Document Created: 2002-06-06 13:41:45
Document Modified: 2002-06-06 13:41:45

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