Report

FCC ID: VGAYCWU7B7B

Test Report

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FCCID_814718

        FCC Part 15
     EMI TEST REPORT
                           of
    E.U.T. : TRANSMITTER
    FCC ID : VGAYCWU7B7B
    MODEL : T-U7B7B
    Working Frequency : 370 MHz

                           for

APPLICANT : BIG KING HORN SPEAKER ENT. CO., LTD.
ADDRESS      : NO.5, LANE 39, AN-LO ROAD, CHUNG-HO
               CITY, TAIPEI HSIEN, TAIWAN, ROC


                     Test Performed by

    ELECTRONICS TESTING CENTER, TAIWAN
     NO.34, LIN 5, DINGFU TSUEN, LINKOU SHIANG
        TAIPEI COUNTY, TAIWAN, 24442, R.O.C.
         TEL : (02)26023052 Fax : (02)26010910
       http://www.etc.org.tw ; e-mail: r00@etc.org.tw

                Report Number : 07-06-RBF-094




                                                        Rev. No 1.0


ETC Report No.:07-06-RBF-094                                              FCC ID.: VGAYCWU7B7B




                  TEST REPORT CERTIFICATION

Applicant                  : BIG KING HORN SPEAKER ENT. CO., LTD.
                               NO.5, LANE 39, AN-LO ROAD, CHUNG-HO CITY, TAIPEI
                               HSIEN, TAIWAN, ROC
Manufacturer              : BIG KING HORN ELECTRONIC (SHANGHAI) CO., LTD.
                               NO. 3689, BEI QING RD., SONG SHAN VILLAGE, HUAXIN
                               TOWN, 201705, QINGPU DISTRICT, SHANGHAI, CHIA
Description of EUT         :

     a)   Type of EUT            :   TRANSMITTER
     b)   Trade Name             :   BKH
     c)   Model No.              :   T-U7B7B
     d)   FCC ID                 :   VGAYCWU7B7B
     e)   Working Frequency      :   370 MHz
     f)   Power Supply           :   DC 3 V Battery*2

Regulation Applied             : FCC Rules and Regulations Part 15 Subpart C (2006)

I HEREBY CERTIFY THAT; The data shown in this report were made in accordance with the
procedures given in ANSI C63.4 and the energy emitted by the device was founded to be within
the limits applicable. I assume full responsibility for accuracy and completeness of these data.

Note : 1. The results of the testing report relate only to the items tested.
       2. The testing report shall not be reproduced except in full, without the written
          approval of ETC.




Issued Date :            Jun. 27, 2007


Test Engineer :
                                ( Vincent Chang )



Approve & Authorized Signer :
                                          Will Yauo, Manager
                                     EMC Dept. II of ELECTRONICS
                                      TESTING CENTER, TAIWAN




                                                                                           Rev. No 1.0


ETC Report No.:07-06-RBF-094                                                                                                          FCC ID.: VGAYCWU7B7B




Table of Contents                                                                                                                                            Page
1. GENERAL INFORMATION ............................................................................................................................... 1
1.1   PRODUCT DESCRIPTION .......................................................................................................................................... 1
1.2   CHARACTERISTICS OF DEVICE: ............................................................................................................................... 1
1.3   TEST METHODOLOGY ............................................................................................................................................. 1
1.4   TEST FACILITY ........................................................................................................................................................ 1
2. DEFINITION AND LIMITS ................................................................................................................................ 2
2.1   DEFINITION ............................................................................................................................................................. 2
2.2   RESTRICTED BANDS OF OPERATION ....................................................................................................................... 2
2.3   LIMITATION ............................................................................................................................................................ 2
2.4   LABELING REQUIREMENT ....................................................................................................................................... 4
2.5   USER INFORMATION ............................................................................................................................................... 4
3 SYSTEM TEST CONFIGURATION ................................................................................................................... 5
3.1 JUSTIFICATION ........................................................................................................................................................ 5
3.2 DEVICES FOR TESTED SYSTEM ................................................................................................................................ 5
4. RADIATED EMISSION MEASUREMENT ...................................................................................................... 6
4.1   APPLICABLE STANDARD ......................................................................................................................................... 6
4.2   MEASUREMENT PROCEDURE................................................................................................................................... 6
4.3   TEST DATA ............................................................................................................................................................. 8
4.4   FIELD STRENGTH CALCULATION .......................................................................................................................... 10
4.5   ACTIVATE TIME .................................................................................................................................................... 10
4.6   CALCULATION OF DUTY FACTOR.......................................................................................................................... 10
4.7   RADIATED TEST EQUIPMENT ................................................................................................................................ 15
4.8   MEASURING INSTRUMENT SETUP ......................................................................................................................... 15
4.9   RADIATED MEASUREMENT PHOTOS...................................................................................................................... 16
5. BANDWIDTH OF EMISSION........................................................................................................................... 17
5.1 APPLICABLE STANDARD PLOT GRAPHIC OF BANDWIDTH ..................................................................................... 17
5.2 BANDWIDTH TEST EQUIPMENT ............................................................................................................................. 17
5.3 PLOT GRAPHIC OF BANDWIDTH ............................................................................................................................ 17
6. CONDUCTED EMISSION MEASUREMENT ................................................................................................ 19
6.1 DESCRIPTION ........................................................................................................................................................ 19
7 ANTENNA REQUIREMENT ............................................................................................................................. 20
7.1 STANDARD APPLICABLE ....................................................................................................................................... 20
7.2 ANTENNA CONSTRUCTION .................................................................................................................................... 20




                                                                                                                                                                      Rev. No 1.0


ETC Report No.:07-06-RBF-094                                                   Sheet 1 of 20 Sheets
                                                                           FCC ID.: VGAYCWU7B7B



1. GENERAL INFORMATION

   1.1 Product Description
          a) Type of EUT          : TRANSMITTER
          b) Trade Name           : BKH
          c) Model No.            : T-U7B7B
          d) FCC ID               : VGAYCWU7B7B
          e) Working Frequency    : 370 MHz
          f) Power Supply         : DC 3 V Battery*2

   1.2 Characteristics of Device:
        When any button of the transmitter is pressed and held, the encoder and RF module is
        powered on by two 3V batteries inside the transmitter.
        The encode IC encodes the address and data (button states) information together with
        header bits and generates serial output to RF module.
        The RF module generates 370MHz oscillation signal, mixes the low frequency input
        signal from the encode IC and transmits the carrier signal though in-circuit antenna.
        When the pressed button is released, the whole transmitter circuit is powered off, so
        there is no power consumption when no buttons are kept on pressed.

   1.3 Test Methodology
        Both conducted and radiated testing was performed according to the procedures in
        chapter 13 of ANSI C63.4(2003).
        The Transmitter under test was operated continuously in its normal operating mode for
        the purpose of the measurements. In order to secure the continuous operation of the
        device under test, rewiring in the circuit was done by the manufacturer so as to affect its
        intended operation.
        The receiving antenna polarized horizontally was varied from 1 to 4 meters and the
        wooden turntable was rotated through 360 degrees to obtain the highest reading on the
        field strength meter or on the display of the spectrum analyzer. And also, each emission
        was to be maximized by changing the orientation of the Transmitter under test.
        In order to determining the average value during one pulse train of the radiated power
        generated from the Transmitter under test, the encoded wave form in the time domain
        was used.

   1.4 Test Facility
        The open area test site and conducted measurement facility used to collect the radiated
        data is located on the roof top of Building at NO.34, LIN 5, DINGFU TSUEN,
        LINKOU SHIANG TAIPEI COUNTY, TAIWAN, 24442, R.O.C.
        This site has been fully described in a report submitted to your office, and accepted in a
        letter dated Oct. 20, 2005.




                                                                                             Rev. No 1.0


ETC Report No.:07-06-RBF-094                                                   Sheet 2 of 20 Sheets
                                                                           FCC ID.: VGAYCWU7B7B



2. DEFINITION AND LIMITS
   2.1 Definition
        Intentional radiator:
        A device that intentionally generates and emits radio frequency energy by radiation or
        induction.

   2.2 Restricted Bands of Operation

               Only spurious emissions are permitted in any of the frequency bands listed below:
                 MHz                      MHz                    MHz                 GHz
             0.090 - 0.110            16.42-16.423            399.9-410              4.5-5.15
             0.495 - 0.505 **     16.69475 - 16.69525           608-614             5.35-5.46
           2.1735 - 2.1905        16.80425 - 16.80475           960-1240            7.25-7.75
              4.125-4.128               25.5-25.67             1300-1427          8.025-8.5
           4.17725-4.17775              37.5-38.25             1435-1626.5           9.0-9.2
           4.20725-4.20775               73-74.6             1645.5-1646.5           9.3-9.5
              6.215-6.218              74.8-75.2               1660-1710           10.6-12.7
           6.26775-6.26825              108-121.94           1718.8-1722.2         13.25-13.4
           6.31175-6.31225              123-138                2200-2300           14.47-14.5
              8.291-8.294             149.9-150.05             2310-2390           15.35-16.2
              8.362-8.366       156.52475 - 156.52525 2483.5-2500                   17.7-21.4
           8.37625-8.38675            156.7-156.9              2690-2900          22.01-23.12
           8.41425-8.41475         162.0125-167.17             3260-3267            23.6-24.0
              12.29-12.293           167.72-173.2              3332-3339            31.2-31.8
          12.51975-12.52025             240-285              3345.8-3358           36.43-36.5
          12.57675-12.57725             322-335.4              3600-4400          Above 38.6
              13.36-13.41
          Remark “**” : Until February 1, 1999, this restricted band shall be 0.490-0.510 MHz

   2.3 Limitation
        (1) Conducted Emission Limits:
            Except as shown in paragraphs (b) and (c) of this section, for an intentional radiator
            that is designed to be connected to the public utility (AC) power line, the radio
            frequency voltage that is conducted back onto the AC power line on any frequency
            or frequencies within the band 150kHz to 30 MHz shall not exceed the limits in the
            following table, as measured using a 50µH/50 ohms line impedance stabilization
            network (LISN). Compliance with the provisions of this paragraph shall be based on
            the measurement of the radio frequency voltage between each power line and ground
            at the power terminal. The lower limit applies at the boundary between the frequency
            ranges.
                Frequency             Quasi Peak                Average
                  MHz                  dBμV                     dBμV
                0.15 - 0.5              66-56*                  56-46*
                 0.5 - 5.0                56                      46
                5.0 - 30.0                60                      50
             Decreases with the logarithm of the frequency



                                                                                             Rev. No 1.0


ETC Report No.:07-06-RBF-094                                                    Sheet 3 of 20 Sheets
                                                                            FCC ID.: VGAYCWU7B7B




         (2) Radiated Emission Limits :

            According to 15.231(a), Periodic operation in the band 40.66-40.70 MHz and above
            70 MHz, except as shown in paragraph 15.231(e), the field strength of emissions
            from intentional radiators operated under this section shall not exceed the following:

                Frequency Band              Field strength of           Field strength of
                    (MHz)                 Fundamental (uV/m)            Spurious (uV/m)
                   40.66-40.70                    2250                       225
                      70-130                      1250                       125
                     130-174                 *1,250 to 3,750             *125 to 375
                     174-260                      3750                       375
                     260-470                *3,750 to 12,500             *375 to 1250
                   Above 470                     12500                      1250
            * Linear interpolations.

            According to 15.231(e), Intentional radiators may operate at a periodic rate
            exceeding that specified in paragraph (a) and may be employed for any type of
            operation, including operation prohibited in paragraph (a), provided the intentional
            radiator complies with the provisions of paragraphs (b) through (d) of this Section,
            except the field strength table in paragraph (b) is replaced by the following:
                Frequency Band              Field strength of           Field strength of
                    (MHz)                 Fundamental (uV/m)            Spurious (uV/m)
                   40.66-40.70                   1,000                       100
                      70-130                      500                         50
                     130-174                 *500 to 1,500                *50 to 150
                     174-260                     1,500                       150
                     260-470                *1,500 to 5,000               *150 to 500
                   Above 470                     5,000                       500
            * Linear interpolations

            Field strength limits are at the distance of 3 meters, emissions radiated outside of the
            specified bands, shall be according to the general radiated limits in 15.209,as
            following table:

                          Other Frequencies             Field Strength of Fundamental
                               (MHz)                     µV/meter        dBµV/meter
                              30 - 88                      100               40.0
                             88 - 216                      150               43.5
                             216 - 960                     200               46.0
                            Above 960                      500               54.0

            As shown in 15.35(b), for frequencies above 1000MHz, the field strength limits are
            based on average detector, however, the peak field strength of any emission shall not
            exceed the maximum permitted average limits, specified above by more than 20 dB
            under any condition of modulation.



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ETC Report No.:07-06-RBF-094                                                    Sheet 4 of 20 Sheets
                                                                            FCC ID.: VGAYCWU7B7B


        (3) Limit of transmission time
            According to 15.231(a),
             1) A manually operated transmitter shall employ a switch that will automatically
                deactivate the transmitter within not more than 5 seconds of being released.
             2) A transmitter activated automatically shall cease transmission within 5 seconds
                after activation.
             3) Periodic transmissions at regular predetermined intervals are not permitted.
                However, polling or supervision transmissions, including data, to determine
                system integrity of transmitters used in security or safety applications are
                allowed if the total duration of transmissions does not exceed more than two
                seconds per hour for each transmitter. There is no limit on the number of
                individual transmissions, provided the total transmission time does not exceed
                two seconds per hour.
             4) Intentional radiators which are employed for radio control purposes during
                emergencies involving fire, security, and safety of life, when activated to signal
                an alarm, may operate during the pendency of the alarm condition.
             5) Transmission of set-up information for security systems may exceed the
                transmission duration limits in paragraphs (a)(1) and (a)(2) of this section,
                provided such transmission are under the control of a professional installer and
                do not exceed ten seconds after a manually operated switch isreleased or a
                transmitter is activated automatically. Such set-up information may include data.
            According to 15.231(e), devices operated under the provisions of this paragraph shall
            be provided with a means for automatically limiting operation so that the duration of
            each transmission shall not be greater than one second and the silent period between
            transmissions shall be at least 30 times the duration of the transmission but in no case
            less than 10 seconds.

   2.4 Labeling Requirement
       The device shall bear the following statement in a conspicuous location on the device :

       This device complies with part 15 of the FCC Rules. Operation is subject to the following
       two conditions: (1) This device may not cause harmful interference, and (2) this device
       must accept any interference received, including interference that may cause undesired
       operation.

   2.5 User Information
       The users manual or instruction manual for an intentional or unintentional radiator shall
       caution the user that changes or modifications not expressly approved by the party
       responsible for compliance could void the user's authority to operate the equipment.




                                                                                              Rev. No 1.0


ETC Report No.:07-06-RBF-094                                                Sheet 5 of 20 Sheets
                                                                        FCC ID.: VGAYCWU7B7B



3 SYSTEM TEST CONFIGURATION
   3.1 Justification


      All measurement were intentional to maximum the emissions from EUT by varying the
      connection cables, therefore, the test result is sure to meet the applicable requirement.

   3.2 Devices for Tested System


   Device                  Manufacture              Model / FCC ID.       Description
   TRANSMITTER*            BIG KING HORN            T-U7BT3/              ----
                           ELECTRONIC               VGAYCWU7B7
                           (SHANGHAI) CO.,          B
                           LTD.
      Remark “*” means equipment under test.




                                                                                          Rev. No 1.0


ETC Report No.:07-06-RBF-094                                                   Sheet 6 of 20 Sheets
                                                                           FCC ID.: VGAYCWU7B7B



4. RADIATED EMISSION MEASUREMENT
   4.1 Applicable Standard
       For periodic operation intentional radiator, the radiated emission shall comply with §
       15.231(b).


   4.2 Measurement Procedure
       A. Preliminary Measurement For Portable Devices

       For portable devices, the following procedure was performed to determine the maximum
         emission axis of EUT:

       1. With the receiving antenna is H polarization, rotate the EUT in turns with three
         orthogonal axes to determine the axis of maximum emission.
       2. With the receiving antenna is V polarization, rotate the EUT in turns with three
         orthogonal axes to determine the axis of maximum emission.
       3. Compare the results derived from above two steps. So, the axis of maximum emission
         from EUT was determined and the configuration was used to perform the final
         measurement.
       B. Final Measurement
       1. Setup the configuration per figure 1 and 2 for frequencies measured below and above 1
          GHz respectively. Turn on EUT and make sure that it is in normal function.

       2. For emission frequencies measured below 1 GHz, a pre-scan is performed in a shielded
          chamber to determine the accurate frequencies of higher emissions will be checked on
          a open test site. As the same purpose, for emission frequencies measured above 1 GHz,
          a pre-scan also be performed with a 1 meter measuring distance before final test.

       3. For emission frequencies measured below and above 1 GHz, set the spectrum analyzer
          on a 100 kHz and 1 MHz resolution bandwidth respectively for each frequency
          measured in step 2.

       4. The search antenna is to be raised and lowered over a range from 1 to 4 meters in
          horizontally polarized orientation. Position the highness when the highest value is
          indicated on spectrum analyzer, then change the orientation of EUT on test table over
          a range from 0。 to 360。with a speed as slow as possible, and keep the azimuth that
          highest emission is indicated on the spectrum analyzer. Vary the antenna position
          again and record the highest value as a final reading. A RF test receiver is also used to
          confirm emissions measured.




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ETC Report No.:07-06-RBF-094                                                   Sheet 7 of 20 Sheets
                                                                           FCC ID.: VGAYCWU7B7B



       5. Repeat step 4 until all frequencies need to be measured were complete.

       6. Repeat step 5 with search antenna in vertical polarized orientations.

       7. Check the three frequencies of highest emission with varying the placement of cables
          (if any) associated with EUT to obtain the worse case and record the result.


                        Figure 1 : Frequencies measured below 1 GHz configuration


                                                                                  Antenna Tower



                                       3m                                           Search
                                                                                   Antenna
                EUT
                                              4m
                                                                            RF Test
                                                                            Receiver


                         Turn                      1m
                                      0.8m
                         Table




                      Ground Plane




                        Figure 2 : Frequencies measured above 1 GHz configuration


                                                                          Antenna Tower



                                 3m                                      Horn Antenna
          EUT
                                       4m                               Spectrum
                                                                        Analyzer


                 Turn                        1m
                             0.8m
                 Table
                                                                            Amplifier




                                                                                              Rev. No 1.0


ETC Report No.:07-06-RBF-094                                                       Sheet 8 of 20 Sheets
                                                                               FCC ID.: VGAYCWU7B7B


   4.3 Test Data
           A. Fundanmental and Harmonic

           Operation
                            : Transmitting(Evenly puts on the table)
           Mode
           Test Date : Jun. 20, 2007       Temperature : 25 °C                Humidity 65 %

 Frequency       Ant Reading         Factor       Result @3m      Limit @3m    Margin     Table   Ant.
                 Pol (dBuV)           (dB)         (dBuV/m)        (dBuV/m)              Degree   High
    (MHz)        H/V  Peak       C            D   Peak Ave.      Peak Ave.       (dB)    (Deg.)   (m)
   370.0145       H     74.8     -6.8     -6.2    68.0    61.8   98.4   78.4    -16.6       75       1.5
   740.0290       H     60.7     -0.5     -6.2    60.2    54.0   78.4   58.4     -4.4       92       1.5
 *1110.0435     H/V       ---    -9.2     -6.2      ---    ---   74.0   54.0       ---      ---        ---
 *1480.0580     H/V       ---    -7.6     -6.2      ---    ---   74.0   54.0       ---      ---        ---
  1850.0725     H/V       ---    -5.5     -6.2      ---    ---   78.4   58.4       ---      ---        ---
 *2220.0870     H/V       ---    -3.8     -6.2      ---    ---   74.0   54.0       ---      ---        ---
  2590.1015     H/V       ---    -2.4     -6.2      ---    ---   78.4   58.4       ---      ---        ---
  2960.1160     H/V       ---    -1.3     -6.2      ---    ---   78.4   58.4       ---      ---        ---
  3330.1305     H/V       ---    -0.4     -6.2      ---    ---   78.4   58.4       ---      ---        ---
 *3700.1450     H/V       ---    0.8      -6.2      ---    ---   74.0   54.0       ---      ---        ---
  Note :
            1. Factor C means “corrected”, and that includes antenna factor, cable loss, amplifier
               gain (if any). And Factor D means “Duty”, that is for calculating the average value
               and derived from section 3.6 in this test report.
            2. Peak Result = Reading + C. Factor
               Ave. Result = Peak Value + D Factor
            3. “*” means the frequency fall in the restricted frequency band, and the limit of
               emission is referred to FCC class B
            4. The limit for spurious emissions refers to FCC§15.231.
            5. The expanded uncertainty of the radiated emission tests is 3.53 dB.

      If the measured frequencies fall in the restricted frequency band, the limit employed is §
      15.209 general requirement when frequencies are below or equal to 1 GHz. And the
      measuring instrument is set to quasi peak detector function, no duty factor applied.




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ETC Report No.:07-06-RBF-094                                                    Sheet 9 of 20 Sheets
                                                                            FCC ID.: VGAYCWU7B7B




        B. Other Emission

           a) Emission frequencies below 1 GHz

               Test Date : Jun. 20, 2007         Temperature : 25 °C         Humidity: 65 %

          Frequency    Ant-Pol    Meter    Corrected    Result    Limit    Margin   Table     Ant.
                                 Reading    Factor      @3m      @3m        (dB)    Degree   High
            (MHz)        H/V     (dBuV)      (dB)      (dBuV/m) (dBuV/m)            (Deg.)    (m)
            38.960        V        33.1      -11.6        21.5     40.0    -18.5      175      1.0
           152.710        V        34.3       -9.9        24.4     43.5    -19.1      182      1.0
           192.840        V        33.6       -8.0        25.6     43.5    -17.9      194      1.0
           488.960        V        34.6       -4.4        30.2     46.0    -15.8      188      1.0
           575.760        V        35.4       -5.3        30.1     46.0    -15.9      192      1.0
           689.170        V        33.8       -1.0        32.8     46.0    -13.2      175      1.0
      Note :
               1. Remark “---” means that the emission level is too low to be measured.
               2. The expanded uncertainty of the radiated emission tests is 3.53 dB.

           b) Emission frequencies above 1 GHz
                Radiated emission frequencies above 1 GHz to 5 GHz were too low to be
                measured with a pre-amplifier of 35 dB.




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ETC Report No.:07-06-RBF-094                                                 Sheet 10 of 20 Sheets
                                                                          FCC ID.: VGAYCWU7B7B


    4.4 Field Strength Calculation

         The field strength is calculated by adding the Antenna Factor and Cable Factor, and
         subtracting the Amplifier Gain (if any) from the measured reading. For the limit is
         employed average value, therefore the peak value can be transferred to average value by
         subtracting the duty factor. The basic equation with a sample calculation is as follows:
                    Peak = Reading + Corrected Factor
         where
         Corr. Factor = Antenna Factor + Cable Factor - Amplifier Gain (if any)
         And the average value is
                 Average = Peak Value + Duty Factor
       Note : If the measured frequencies are fall in the restricted frequency band, the limit
              employed must be quasi peak value when frequencies are below or equal to 1
              GHz. And the measuring instrument is set to quasi peak detector function.

   4.5 Activate Time

         This EUT is operated by manually, and Activate Time is less than 5 second after being
         released.

   4.6 Calculation of Duty Factor

         The duty factor is calculated with following formula :

                       Total Duty
         20 log
                  Period of Pulse Train

        370.0145 MHz
                                     (1.1ms x 15)+(0.4ms x 11)
         Duty Factor= 20log
                                              42.8ms

                                          20.9ms
                        = 20log                         = -6.2dB
                                          42.8ms




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ETC Report No.:07-06-RBF-094                                                      Sheet 11 of 20 Sheets
                                                                               FCC ID.: VGAYCWU7B7B


                                                   RBW 1 MHz    Delta 1 [T1 ]
                                                  * VBW 1 MHz               1.12 dB
         Ref   80 dBµV         * Att   10 dB       SWT 100 ms          42.800000 ms
         80                                                     Marker 1 [T1 ]
                                                                          28.76 dBµV
                                                                       10.400000 ms     A
         70
                                                                                       SGL
1 PK *
CLRWR
         60



         50                                                                            TDF



         40


                                                  1
                1
         30



         20



         10



         0



         -10


         -20

         Center 370.0145 MHz                   10 ms/




Date: 21.JUN.2007        11:11:36




                                                                                                 Rev. No 1.0


ETC Report No.:07-06-RBF-094                                                     Sheet 12 of 20 Sheets
                                                                              FCC ID.: VGAYCWU7B7B


                                                  RBW 1 MHz    Delta 1 [T1 ]
                                                 * VBW 1 MHz               0.46 dB
         Ref   80 dBµV         * Att   10 dB      SWT 50 ms            1.100000 ms
         80                                                    Marker 1 [T1 ]
                                                                         28.13 dBµV
                                                                      19.300000 ms     A
         70
                                                                                      SGL
1 PK *
CLRWR
         60



         50                                                                           TDF



         40



         30                            1 1



         20



         10



         0



         -10


         -20

         Center 370.0145 MHz                   5 ms/




Date: 21.JUN.2007        11:12:35




                                                                                                Rev. No 1.0


ETC Report No.:07-06-RBF-094                                                     Sheet 13 of 20 Sheets
                                                                              FCC ID.: VGAYCWU7B7B


                                                  RBW 1 MHz    Delta 1 [T1 ]
                                                 * VBW 1 MHz              -1.16 dB
         Ref   80 dBµV         * Att   10 dB      SWT 50 ms          400.000000 µs
         80                                                    Marker 1 [T1 ]
                                                                         29.16 dBµV
                                                                      22.000000 ms     A
         70
                                                                                      SGL
1 PK *
CLRWR
         60



         50                                                                           TDF



         40


                                          1
         30                                1



         20



         10



         0



         -10


         -20

         Center 370.0145 MHz                   5 ms/




Date: 21.JUN.2007        11:13:28




                                                                                                Rev. No 1.0


ETC Report No.:07-06-RBF-094                                                           Sheet 14 of 20 Sheets
                                                                                    FCC ID.: VGAYCWU7B7B


                                                      RBW 1 MHz      Delta 1 [T1 ]
                                                     * VBW 1 MHz                -1.08 dB
         Ref   80 dBµV         * Att       10 dB      SWT 10 s             480.000000 ms
         80                                                          Marker 1 [T1 ]
                                                                               33.17 dBµV
                                                                             3.660000 s      A
         70

1 PK *
VIEW
         60

                                                          released
         50                                                                                 TDF



         40
                                       1    1
         30



         20



         10



         0



         -10


         -20

         Center 370.0145 MHz                       1 s/




Date: 21.JUN.2007        11:15:01




                                                                                                      Rev. No 1.0


ETC Report No.:07-06-RBF-094                                              Sheet 15 of 20 Sheets
                                                                       FCC ID.: VGAYCWU7B7B


   4.7 Radiated Test Equipment

           Equipment           Manufacturer       Model No. Calibration Date Next Cal. Date
      Test Receiver            Rohde & Schwarz    ESVS30     03/22/2007       03/20/2008
      Spectrum                 Advantest          R3162      01/29/2007       01/28/2008
      Bi-Log Antenna           Schaffner          CBL 6111C 12/22/2006        12/21/2007
      Log-periodic Antenna     EMCO               3146       10/13/2006       10/12/2007
      Biconical Antenna        EMCO               3110B      02/01/2007       01/31/2008
      Double Ridged Antenna    EMCO               3115       04/27/2007       04/26/2008
      Amplifier                HP                 8449B      10/09/2006       10/08/2007
      Amplifier                HP                 83051A     05/06/2007       05/05/2008
      Amplifier                HP                 8447D      10/09/2006       10/08/2007
      Spectrum                 Rohde & Schwarz    FSP40      08/08/2006       08/07/2007


   4.8 Measuring Instrument Setup
        Explanation of measuring instrument setup in frequency band measured is as following :
        Frequency Band                                               Resolution        Video
                                  Instrument            Function
             (MHz)                                                   bandwidth      Bandwidth
                             RF  Test Receiver         Quasi-Peak     120 kHz         N/A
           30 to 1000
                             Spectrum Analyzer         Peak           100 kHz         100 kHz
          Above 1000         Spectrum Analyzer         Peak           1 MHz           1 MHz
                             Spectrum Analyzer         Average        1 MHz           10 Hz




                                                                                         Rev. No 1.0


ETC Report No.:07-06-RBF-094            Sheet 16 of 20 Sheets
                                     FCC ID.: VGAYCWU7B7B


   4.9 Radiated Measurement Photos




                                                       Rev. No 1.0


ETC Report No.:07-06-RBF-094                                             Sheet 17 of 20 Sheets
                                                                      FCC ID.: VGAYCWU7B7B



5. BANDWIDTH OF EMISSION
   5.1 Applicable Standard Plot Graphic of Bandwidth

        Per FCC rule §15.231(c), the permitted emission bandwidth is no wider than 0.25%of
        the center frequency for devices operating above 70 MHz and below 900 MHz.




   5.2 Bandwidth Test Equipment


         Equipment              Manufacturer   Model No. Calibration Date Next Cal. Date
    Spectrum                   Rohde & Schwarz FSP40     08/08/2006       08/07/2007


   5.3 Plot Graphic of Bandwidth


        The emission bandwidth limit for this transmitter is

        370.0145 MHz * 0.25%=925.036 kHz
        20 dB bandwidth = 51 kHz
       Test Result: 51 kHz < 925.036 kHz.




                                                                                        Rev. No 1.0


ETC Report No.:07-06-RBF-094                                                        Sheet 18 of 20 Sheets
                                                                                 FCC ID.: VGAYCWU7B7B


                                                   * RBW 10 kHz   Marker 1 [T1 ]
                                                   * VBW 1 MHz              66.43 dBµV
       Ref   80 dBµV         * Att   10 dB          SWT 5 ms         370.013500000 MHz
       80                                                         ndB [T1]   20.00 dB
                                                                  BW 51.000000000 kHz
                                                                  Temp 1 [T1 ndB]         A
       70                                      1
                                                                            45.43 dBµV
1 PK
                                                                     369.987500000 MHz
VIEW
       60                                                         Temp 2 [T1 ndB]
                                                                            46.50 dBµV
                                                                     370.038500000 MHz
       50                                            T2                                  TDF
                                         T1


       40



       30



       20



       10



       0



       -10


       -20

       Center 370.0145 MHz                   50 kHz/                      Span 500 kHz




Date: 21.JUN.2007      11:05:31




                                                                                                   Rev. No 1.0


ETC Report No.:07-06-RBF-094                                               Sheet 19 of 20 Sheets
                                                                        FCC ID.: VGAYCWU7B7B



6. CONDUCTED EMISSION MEASUREMENT

   6.1 Description
       This EUT is excused from investigation of conducted emission, for it is powered by two
       DC 3V batteries only. According to §15.207 (d), measurements to demonstrate
       compliance with the conducted limits are not required for devices which only employ
       battery power for operation and which do not operate from the AC power lines or contain
       provisions for operation while connected to the AC power lines.




                                                                                          Rev. No 1.0


ETC Report No.:07-06-RBF-094                                                Sheet 20 of 20 Sheets
                                                                         FCC ID.: VGAYCWU7B7B



7 ANTENNA REQUIREMENT
   7.1 Standard Applicable
       According to §15.203, an intentional radiator shall be designed to ensure that no antenna
       other than that furnished by the responsible party shall be used with the device.


   7.2 Antenna Construction
       The antenna is permanently integrated on RF Board, no consideration of replacement.
       Please see photos submitted in Exhibit B.




                                                                                           Rev. No 1.0



Document Created: 2007-07-11 12:00:02
Document Modified: 2007-07-11 12:00:02

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