Test report

FCC ID: MCHCM-LT

Test Report

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FCCID_1448944

                                                                              www.nemko.com


Compliance test report                          170757-1TRFWL
                                                Date of issue
                                                April 12, 2011




FCC Part 15, Subpart C, Section §15.239
Operation in the band 88–108 MHz



Applicant   Decade Transmitters inc.
 Product    FM transmitter
   Model    CM-10 / LT-100
 FCC ID     MCHCM-LT




                                           Nemko Canada Inc., a testing
                                          laboratory, is accredited by the
                                     Standards Council of Canada. The
                                   tests included in this report are within
                                           the scope of this accreditation


Test location

Nemko Canada Inc.
303 River Road
Ottawa, ON, K1V 1H2
CANADA

Telephone       +1 613 737 9680
Facsimile       +1 613 737 9691
Toll free       +1 800 563 6336
Website         www.nemko.com




  Tested by       Andrey Adelberg, Senior Wireless/EMC Specialist and

Reviewed by

                  David Duchesne, Wireless/EMC Specialist




Limits of responsibility
Note that the results contained in this report relate only to the items tested and were obtained in the period between the date of initial receipt of
samples and the date of issue of the report.
This test report has been completed in accordance with the requirements of ISO/IEC 17025. All results contain in this report are within Nemko
Canada’s ISO/IEC 17025 accreditation.

Copyright notification
Nemko Canada Inc. authorizes the applicant to reproduce this report provided it is reproduced in its entirety and for use by the company’s
employees only. Any use which a third party makes of this report, or any reliance on or decisions to be made based on it, are the responsibility of
such third parties.
Nemko Canada Inc. accepts no responsibility for damages, if any, suffered by any third party as a result of decisions made or actions based on
this report.
© Nemko Canada Inc.


Table of contents
Section 1: Report summary ......................................................................................................................................................... 4
Section 2: Summary of test results ............................................................................................................................................. 5
Section 3: Equipment under test (EUT) details .......................................................................................................................... 6
Section 4: Engineering considerations....................................................................................................................................... 8
Section 5: Test conditions ........................................................................................................................................................... 9
Section 6: Measurement uncertainty ........................................................................................................................................ 10
Section 7: Test equipment ......................................................................................................................................................... 11
Section 8: Testing data............................................................................................................................................................... 12
   8.1     Clause 15.207(a) Conducted limits ............................................................................................................................ 12
   8.2     Clause 15.215(c) 20 dB bandwidth ............................................................................................................................ 15
   8.3     Clause 15.239(a) Occupied bandwidth ...................................................................................................................... 17
   8.4     Clause 15.239(b) Field strength of fundamental emission ......................................................................................... 19
   8.5     Clause 15.239(c) Field strength of spurious emissions.............................................................................................. 20
Section 9: Block diagrams of test set-ups................................................................................................................................ 24
Section 10: EUT photos.............................................................................................................................................................. 25




Report reference ID: 170757-1TRFWL                                                                                                                                     Page 3 of 26


                                  Section 1          Report summary




Section 1: Report summary

  1.1     Applicant

Decade Transmitter Inc.
3232 Richard street, unit 4
Sherbrooke, QC
J1L 1Y2 Canada


  1.2     Manufacturer

Decade Transmitter Inc.
3232 Richard street, unit 4
Sherbrooke, QC
J1L 1Y2 Canada


  1.3     Test specification

FCC Part 15, Subpart C, Section §15.239: Operation in the band 88–108 MHz


  1.4     Statement of compliance

In the configuration tested the EUT was found compliant.

This report contains an assessment of apparatus against specifications based upon tests carried out on samples submitted at Nemko Canada
Inc. These tests were conducted on a sample of the equipment for the purpose of demonstrating compliance with FCC Part 15 Subpart C.


  1.5     Site registration number

Test site FCC number          176392 (3 m Semi anechoic chamber)


  1.6     Test report revision history

   Revision #       Details of changes made to test report
     TRF            Original report issued




Report reference ID: 170757-1TRFWL                                                                                           Page 4 of 26


                                 Section 2           Summary of test results




Section 2: Summary of test results
  2.1     General requirements for FCC Part 15

            Part            Test description                                                                                        Verdict
                                                                                                                                         (1)
         §15.31(e)          Variation of power source                                                                               Pass
                                                                                                                                         (2)
        §15.31(m)           Number of operating frequencies                                                                         Pass
                                                                                                                                         (3)
          §15.203           Antenna requirement                                                                                     Pass
        §15.207(a)          Conducted limits                                                                                         Pass
        §15.215(c)          20 dB bandwidth                                                                                          Pass
Notes:
(1)
    - Transmit field strength was verified while supply voltage was varied from 85 to 115 % of the nominal rated supply voltage. No change in
transmit field strength was observed.
(2)
    - The frequency range over which the device operates is greater than 10 MHz. Tests were performed on three operating channels (low, mid
and high).
(3)
    – The EUT has an integrated antenna


  2.2     Specific requirements for FCC Section 15.239

        Part            Test description                                                                                        Verdict
     §15.239(a)         Occupied bandwidth                                                                                       Pass
     §15.239(b)         Field strength of fundamental emission                                                                   Pass
     §15.239(c)         Field strength of spurious emissions                                                                     Pass




Report reference ID: 170757-1TRFWL                                                                                                Page 5 of 26


                                Section 3           Equipment under test (EUT) details




Section 3: Equipment under test (EUT) details

  3.1 Product details

Model                          CM-10 / LT-100
FCC ID                         MCHCM-LT
Type of product                Stereo FM Transmitter


  3.2 Product description

The Decade CM-10 / Artika LT-100 is a low power FM transmitter operating in the 88–108 MHz band. It is designed around the Rohm
BH1415F FM transmitter integrated circuit. This IC contains all the functions needed to implement an FM transmitter: audio limiter, pre-
emphasis, 15 kHz low-pass filter, stereo generator (MPX), PLL frequency synthesizer, VCO with varicap diode modulator, RF buffer amplifier
and crystal oscillator used by the PLL and the MPX.
Beside the BH1415F circuitry, the CM-10 also contains a microphone pre-amplifier, volume controls for both the line inputs and the microphone
input, a low-pass filter at the RF output (for harmonics and spurious rejection) and an output attenuator. There is also a MCU used for
frequency selection (through UP / DOWN push buttons) and display on a LCD display. Finally, it also contains a power supply that generates
the +5 VDC and the +12 VDC voltages used by the various circuits.


  3.3 Sample information

Receipt date                   March 16, 2011
Nemko sample ID number         1, 2
Sample model provided          Decade CM-10 (representative model)


  3.4 EUT technical specifications

Operating bands                88–108 MHz
Operating frequencies          88.1–107.5 MHz
Modulation type                FM with 75 kHz deviation
Channel spacing                200 kHz
Occupied bandwidth             40.7 kHz
Emission designator            40K7F8EHF
Power source                   120 VAC, 60 Hz
Antenna types                  Integrated telescopic antenna




Report reference ID: 170757-1TRFWL                                                                                              Page 6 of 26


                                Section 3            Equipment under test (EUT) details




  3.5 Operation of the EUT during testing

The EUT was set to transmit on low, mid and high channels. The transmitter input was modulated with a 2.5 kHz tone at a voltage level of 0.5
Vrms. to reach 50 % of rated deviation.


  3.6 EUT setup diagram




                                                                  Antenna



                           Audio                                                           Power                To AC
                                                             EUT
                         generator                                                        adapter               mains

Item 1 (EUT)               Model              FM Transmitter CM-10
                           Part number        CM-10
                           Serial number      None

Item 2 (Power adapter)     Model              JVC AC adapter
                           Model number       AP-V400U
                           Serial number      0706083890




Report reference ID: 170757-1TRFWL                                                                                               Page 7 of 26


                                 Section 4           Engineering considerations




Section 4: Engineering considerations

  4.1 Modifications incorporated in the EUT

In order to comply with fundamental requirements the client had to perform the following modification:
The value of R23 was increased from 1.5K to 2.2K. R23 is part of the output attenuator.


  4.2 Deviations from laboratory tests procedures

No deviations were made from laboratory test procedures


  4.3 Technical judgment

None




Report reference ID: 170757-1TRFWL                                                                       Page 8 of 26


                                  Section 5            Test conditions




Section 5: Test conditions

  5.1 Atmospheric conditions

Temperature: 15–30 °C
Relative humidity: 20–75 %
Air pressure: 86–106 kPa
When it is impracticable to carry out tests under these conditions, a note to this effect stating the ambient temperature and relative humidity
during the tests shall be recorded and stated.


  5.2 Power supply range

The normal test voltage for equipment to be connected to the mains shall be the nominal mains voltage. For the purpose of the present
document, the nominal voltage shall be the declared voltage, or any of the declared voltages ±5 %, for which the equipment was designed.




Report reference ID: 170757-1TRFWL                                                                                                    Page 9 of 26


                               Section 6          Measurement uncertainty




Section 6: Measurement uncertainty

 6.1 Measurement uncertainty

Nemko Canada Inc. has calculated measurement uncertainty and is documented in EMC/MUC/001 “Uncertainty in EMC measurements.”
Measurement uncertainty was calculated using the methods described in CISPR 16-4 Specification for radio disturbance and immunity
measuring apparatus and methods – Part 4: Uncertainty in EMC measurements; as well as described in UKAS LAB34: The expression of
Uncertainty in EMC Testing. Measurement uncertainty calculations assume a coverage factor of K=2 with 95 % certainty.




Report reference ID: 170757-1TRFWL                                                                                       Page 10 of 26


                              Section 7          Test equipment




Section 7: Test equipment

  7.1 Test equipment list

Equipment                            Manufacturer                 Model No.    Asset/Serial No.   Cal. Cycle   Next cal.
3 m EMI test chamber                 TDK                          SAC-3        FA002047           1 year       Mar. 09/12
Flush mount turntable                Sunol                        FM2022       FA002082           —            NCR
Controller                           Sunol                        SC104V       FA002060           —            NCR
Antenna mast                         Sunol                        TLT2         FA002061           —            NCR
International power supply           California Inst.             3001I        FA001021           1 year       Jan. 26/12
Receiver/spectrum analyzer           Rohde & Schwarz              ESU 26       FA002043           1 year       April 14/11
Spectrum analyzer                    Rohde & Schwarz              FSU          FA001877           1 year       Dec.06/11
Bilog antenna                        Sunol                        JB3          FA002108           1 year       Jan. 31/12
Horn antenna #2                      Emco                         3115         FA000825           1 year       Feb. 04/12
1–18 GHz pre-amplifier               JCA                          JCA118-503   FA002091           1 year       Sept. 23/11
LISN                                 Rohde & Schwarz              ENV216       FA002023           1 year       Nov. 09/11
50 coax cable                        Huber + Suhner               NONE         FA002015           1 year       Sept. 01/11
Audio generator                      GW                           GAG-808G     FA001034           —            COU
Note: NCR = No Calibrate Required; COU = Calibrate On Use




Report reference ID: 170757-1TRFWL                                                                             Page 11 of 26


                                  Section 8            Testing data
                                  Test name            Clause 4.6.1 Occupied bandwidth
                                  Specification        FCC Part 15



Section 8: Testing data

8.1       Clause 15.207(a) Conducted 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 150
kHz to 30 MHz, shall not exceed the limits in the following table, as measured using a 50 µH/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.

                                             Table 8.1-1: Limits for conducted emissions on AC line
                                                                                       Conducted limit (dBµV)
        Frequency of emission (MHz)
                                                                    Quasi-peak                                           Average
                  0.15–0.5                                           66 to 56*                                           56 to 46*
                    0.5–5                                               56                                                  46
                     5–30                                               60                                                  50
* - Decreases with the logarithm of the frequency.


8.1.1     Test summary

Test date       March 16, 2011                    Test engineer      Andrey Adlberg                  Verdict                Pass
Temperature     23 °C                             Air pressure       1004 mbar                       Relative humidity      30 %

8.1.2     Special notes

The spectral scan has been corrected with transducer factors (i.e. cable loss, LISN factors, and attenuators) for determination of compliance.

A preview measurement was generated with the receiver in continuous scan mode. Emissions detected within 6 dB or above limit were re-
measured with the appropriate detector against the correlating limit and recorded as the final measurement.




Report reference ID: 170757-1TRFWL                                                                                                    Page 12 of 26


                                         Section 8            Testing data
                                         Test name            Clause 4.6.1 Occupied bandwidth
                                         Specification        FCC Part 15



8.1.3           Test data


                          90


                          80


                          70


                          60
          Level in dBµV




                          50


                          40


                          30


                          20


                          10


                          0
                          150k     300     400   500        800   1M           2M       3M      4M   5M   6   8   10M   20M     30M
                                                                          Frequency in Hz

     Conducted emissions on phase line
         CISPR 22 Mains QP Class B.LimitLine
         CISPR 22 Mains AV Class B.LimitLine
         Preview Result 1
         Preview Result 2

                                                         Plot 8.1-1: Conducted emissions on phase line

Receiver/Spectrum analyzer settings:
                                                                0.15 MHz to 30 MHz
Preview measurements               Receiver: 9 kHz RBW, Peak (blue) and Average (green) detector, max hold
Final measurement                  Receiver: 9 kHz RBW, Quasi-peak and Average (green) detector
Measurement time 100 ms




Report reference ID: 170757-1TRFWL                                                                                            Page 13 of 26


                                         Section 8            Testing data
                                         Test name            Clause 4.6.1 Occupied bandwidth
                                         Specification        FCC Part 15



8.1.3           Test data, continued


                          90


                          80


                          70


                          60
          Level in dBµV




                          50


                          40


                          30


                          20


                          10


                          0
                          150k     300     400   500        800   1M            2M       3M     4M   5M    6   8   10M   20M     30M
                                                                           Frequency in Hz

     Conducted emissions on neutral line
         CISPR 22 Mains QP Class B.LimitLine
         CISPR 22 Mains AV Class B.LimitLine
         Preview Result 1
         Preview Result 2

                                                         Plot 8.1-2: Conducted emissions on neutral line

Receiver/Spectrum analyzer settings:
                                                                0.15 MHz to 30 MHz
Preview measurements               Receiver: 9 kHz RBW, Peak (blue) and Average (green) detector, max hold
Final measurement                  Receiver: 9 kHz RBW, Quasi-peak and Average (green) detector
Measurement time 100 ms




Report reference ID: 170757-1TRFWL                                                                                             Page 14 of 26


                                 Section 8            Testing data
                                 Test name            Clause 15.215(c) 20 dB bandwidth
                                 Specification        FCC Part 15



8.2       Clause 15.215(c) 20 dB bandwidth
Intentional radiators operating under the alternative provisions to the general emission limits, as contained in §§15.217 through 15.257 and in
Subpart E of this part, must be designed to ensure that the 20 dB bandwidth of the emission, or whatever bandwidth may otherwise be
specified in the specific rule section under which the equipment operates, is contained within the frequency band designated in the rule section
under which the equipment is operated. The requirement to contain the designated bandwidth of the emission within the specified frequency
band includes the effects from frequency sweeping, frequency hopping and other modulation techniques that may be employed as well as the
frequency stability of the transmitter over expected variations in temperature and supply voltage. If frequency stability is not specified in the
regulations, it is recommended that the fundamental emission be kept within at least the central 80 % of the permitted band in order to minimize
the possibility of out-of-band operation.

8.2.1     Test summary

Test date       March 29, 2011                   Test engineer     Andrey Adlberg                 Verdict               Pass
Temperature     22 °C                            Air pressure      1002 mbar                      Relative humidity     31 %

8.2.2     Special notes

The test was performed using peak detector of the spectrum analyzer with RBW no narrower than 1 % of the emission bandwidth.




Report reference ID: 170757-1TRFWL                                                                                                Page 15 of 26


                                                         Section 8                             Testing data
                                                         Test name                             Clause 15.215(c) 20 dB bandwidth
                                                         Specification                         FCC Part 15



8.2.3           Test data
                                                        * RBW 2 kHz           Delta 3 [T1 ]                                                                                                    * RBW 2 kHz     Delta 3 [T1 ]
                                                        * VBW 300 kHz                    -0.01 dB                                                                                              * VBW 300 kHz               0.79 dB
       Ref   50 dBµV              * Att   0 dB           SWT 50 ms                39.302051282 kHz                                       Ref    50 dBµV              * Att       0 dB           SWT 50 ms          40.216410257 kHz

       50                                                                     Marker 1 [T1 ]                                              50                                                                   Marker 1 [T1 ]
                                                                                        12.71 dBµV                                                                                                                       11.26 dBµV
                                                                                  88.081658974 MHz         A                                                                                                       97.981257949 MHz    A
       40                                                                                                                                 40
                                                    2                         Delta 2 [T1 ]                                                                                                                    Delta 2 [T1 ]
1 PK                                                                                     20.59 dB                                 1 PK                                                     2                              19.40 dB
VIEW                                                                                                                              VIEW
       30                                                                         19.661025641 kHz                                        30                                                                       20.182051282 kHz



       20                                                                                                                                 20
                                           1                  3                                          PA                                                                                           3                                PA
                                                                                                                                                                                  1
                                                                                                         PS                                                                                                                            PS
       10                                                                                                                                 10



       0                                                                                                                                  0

                                                                                                         3DB                                                                                                                           3DB
       -10                                                                                               AC                               -10                                                                                          AC



       -20                                                                                                                                -20



       -30                                                                                                                                -30



       -40                                                                                                                                -40


       -50                                                                                                                                -50

       Center   88.10136 MHz                     20 kHz/                                Span   200 kHz                                   Center   98 MHz                                20 kHz/                       Span   200 kHz




Date: 29.MAR.2011      17:33:02                                                                                                  Date: 29.MAR.2011        17:35:58


                             Plot 8.2-1: 20 dB BW, low channel                                                                                                   Plot 8.2-2: 20 dB BW, mid channel
                                                                                                                          * RBW 2 kHz           Delta 3 [T1 ]
                                                                                                                          * VBW 300 kHz                     0.64 dB
                                                                      Ref     50 dBµV              * Att       0 dB          SWT 50 ms              40.064102564 kHz

                                                                        50                                                                      Marker 1 [T1 ]
                                                                                                                                                           7.87 dBµV
                                                                                                                                                   107.481410256 MHz         A
                                                                        40
                                                                                                                                                Delta 2 [T1 ]
                                                              1 PK                                                                                         20.53 dB
                                                              VIEW                                                       2
                                                                        30                                                                          20.149743590 kHz



                                                                        20
                                                                                                                                                                           PA
                                                                                                                                  3                                        PS
                                                                        10                                      1



                                                                        0

                                                                                                                                                                           3DB
                                                                        -10                                                                                                AC



                                                                        -20



                                                                        -30



                                                                        -40


                                                                        -50

                                                                      Center    107.5 MHz                             20 kHz/                             Span   200 kHz




                                                              Date: 29.MAR.2011         17:34:36


                                                                                               Plot 8.2-3: 20 dB BW, high channel

                                                                                               Table 8.2-1: 20 dB bandwidth results
                                                   Channel                                                                                                                   20 dB bandwidth, kHz
                                                     Low                                                                                                                             39.3
                                                     Mid                                                                                                                             40.2
                                                    High                                                                                                                             40.1




Report reference ID: 170757-1TRFWL                                                                                                                                                                                              Page 16 of 26


                                Section 8           Testing data
                                Test name           Clause 15.239(a) Occupied bandwidth
                                Specification       FCC Part 15.239



8.3       Clause 15.239(a) Occupied bandwidth
Emissions from the intentional radiator shall be confined within a band 200 kHz wide centered on the operating frequency. The 200 kHz band
shall lie wholly within the frequency range of 88–108 MHz.

8.3.1     Test summary

Test date      March 16, 2011                   Test engineer    Andrey Adlberg                Verdict              Pass
Temperature    23 °C                            Air pressure     1004 mbar                     Relative humidity    31 %

8.3.2     Special notes

The test was performed using peak detector of the spectrum analyzer with RBW no narrower than 1 % of the emission bandwidth.




Report reference ID: 170757-1TRFWL                                                                                             Page 17 of 26


                                                          Section 8                           Testing data
                                                          Test name                           Clause 15.239(a) Occupied bandwidth
                                                          Specification                       FCC Part 15.239



8.3.3           Test data
                                                         * RBW 2 kHz         Marker 1 [T1 ]                                                                                                      * RBW 2 kHz   Marker 1 [T1 ]
                                                          VBW 5 kHz                    52.68 dBµV                                                                                                 VBW 5 kHz              53.60 dBµV
       Ref   87 dBµV              * Att   10 dB           SWT 50 ms              88.101282051 MHz                                          Ref   87 dBµV              * Att       10 dB           SWT 50 ms        98.001602564 MHz

                                                                             OBW 39.102564103 kHz                                                                                                              OBW 40.705128205 kHz
                                                                             Temp 1 [T1 OBW]                                                                                                                   Temp 1 [T1 OBW]
       80                                                                                                                                  80
                                                                                       33.13 dBµV         A                                                                                                              34.10 dBµV    A
                                                                                 88.081730769 MHz                                                                                                                  97.981089744 MHz
1 PK                                                                         Temp 2 [T1 OBW]                                       1 PK                                                                        Temp 2 [T1 OBW]
       70                                                                                                                                  70
MAXH                                                                                                                               MAXH
                                                                                       33.32 dBµV                                                                                                                        34.87 dBµV
                                                                                 88.120833333 MHz                                                                                                                  98.021794872 MHz
       60                                                                                               TDS                                60                                                                                          TDS
                                                     1                                                                                                                                       1

       50                                                                                               PS                                 50                                                                                          PS



       40                                                                                                                                  40
                                                                                                                                                                                  T1                   T2
                                           T1                  T2

       30                                                                                               3DB                                30                                                                                          3DB
                                                                                                        AC                                                                                                                             AC


       20                                                                                                                                  20



       10                                                                                                                                  10



       0                                                                                                                                   0



       -10                                                                                                                                 -10

       Center   88.10128205 MHz                   20 kHz/                              Span   200 kHz                                      Center   98.00160256 MHz                       20 kHz/                     Span   200 kHz




Date: 16.MAR.2011      15:57:02                                                                                                    Date: 16.MAR.2011       16:00:24


                       Plot 8.3-1: 99 % occupied BW, low channel                                                                                           Plot 8.3-2: 99 % occupied BW, mid channel
                                                                                                                             * RBW 2 kHz         Marker 1 [T1 ]
                                                                                                                              VBW 5 kHz                    53.10 dBµV
                                                                       Ref   87 dBµV              * Att       10 dB           SWT 50 ms             107.501522436 MHz

                                                                                                                                                 OBW 40.384615385 kHz
                                                                                                                                                 Temp 1 [T1 OBW]
                                                                       80
                                                                                                                                                           33.32 dBµV         A
                                                                                                                                                    107.481330128 MHz
                                                               1 PK                                                                              Temp 2 [T1 OBW]
                                                                       70
                                                               MAXH
                                                                                                                                                           33.59 dBµV
                                                                                                                                                    107.521714744 MHz
                                                                       60                                                                                                   TDS
                                                                                                                         1

                                                                       50                                                                                                   PS



                                                                       40
                                                                                                              T1                   T2

                                                                       30                                                                                                   3DB
                                                                                                                                                                            AC


                                                                       20



                                                                       10



                                                                       0



                                                                       -10

                                                                       Center   107.5015224 MHz                       20 kHz/                              Span   200 kHz




                                                               Date: 16.MAR.2011       15:55:24


                                                                                    Plot 8.3-3: 99 % occupied BW, high channel

                                                                                   Table 8.3-1: 99 % occupied bandwidth results

                    Channel                                                99 % bandwidth, kHz                                                      BW limit, kHz                                                 Margin, kHz
                      Low                                                         39.1                                                                  200                                                         160.9
                      Mid                                                         40.7                                                                  200                                                         159.3
                     High                                                         40.4                                                                  200                                                         159.6

Lower band edge is 88.082 MHz (Plot 8.3-1, Temp1; above 88 MHz) and upper band edge is 107.52 MHz (Plot 8.3-3, Temp2; below 108 MHz).
99 % bandwidth lies wholly within 88–108 MHz band. Lower channel central frequency is 88.101 MHz – 100 kHz = 88.001 MHz (lies within 88–
108 MHz band). Upper channel central frequency is 107.501 MHz + 100 kHz = 107.601 MHz (lies within 88–108 MHz band).




Report reference ID: 170757-1TRFWL                                                                                                                                                                                              Page 18 of 26


                                 Section 8           Testing data
                                 Test name           Clause 15.239(b) Field strength of fundamental emission
                                 Specification       FCC Part 15.239



8.4       Clause 15.239(b) Field strength of fundamental emission
The field strength of any emissions within the permitted 200 kHz band shall not exceed 250 microvolts/meter at 3 meters. The emission limit in
this paragraph is based on measurement instrumentation employing an average detector. The provisions in §15.35 for limiting peak emissions
apply.

8.4.1     Test summary

Test date      March 29, 2011                    Test engineer     Andrey Adlberg                Verdict               Pass
Temperature    23 °C                             Air pressure      1003 mbar                     Relative humidity     31 %

8.4.2     Special notes

The test was performed using spectum analyzer with 100 kHz RBW and 300 kHz VBW average and peak detector were applied.

8.4.3     Test data

                                     Table 8.4-1: Field strength of average fundamental emissions results
        Frequency, MHz               Average field strength, dBµV/m        Average field strength limit, dBµV/m             Margin, dB
              88.1                                 41.4                                     48.0                               6.6
              98.0                                 41.4                                     48.0                               6.6
             107.5                                 41.3                                     48.0                               6.7


                                      Table 8.4-2: Field strength of peak fundamental emissions results
        Frequency, MHz                 Peak field strength, dBµV/m          Peak field strength limit, dBµV/m               Margin, dB
              88.1                                 42.5                                    68.0                                25.5
              98.0                                 42.1                                    68.0                                25.9
             107.5                                 42.1                                    68.0                                25.9

The test was performed using spectum analyzer with 100 kHz RBW, after the test RBW was tuned to 200 kHz, no significant change in peak
and average field strengths were observed.




Report reference ID: 170757-1TRFWL                                                                                               Page 19 of 26


                                Section 8            Testing data
                                Test name            Clause 15.239(c) Field strength of spurious emissions
                                Specification        FCC Part 15.239



8.5       Clause 15.239(c) Field strength of spurious emissions
The field strength of any emissions radiated on any frequency outside of the specified 200 kHz band shall not exceed the general radiated
emission limits in §15.209.
                                              Table 8.5-1: FCC 15.209 Radiated emissions limits
                                                                                        Field strength
              Frequency (MHz)
                                                                   (µV/m)                                         (dBµV/m)
                    30–88                                            100                                            40.0
                   88–216                                            150                                            43.5
                  216–960                                            200                                            46.0
                 above 960                                           500                                            54.0

8.5.1     Test summary

Test date      March 29, 2011                   Test engineer     Andrey Adlberg                Verdict               Pass
Temperature    22 °C                            Air pressure      1003 mbar                     Relative humidity     30 %

8.5.2     Special notes

The EUT was scanned from 30 to 1000 MHz. Spectrum analyzer was set to use CISPR quasi-peak detector with RBW of 120 kHz.




Report reference ID: 170757-1TRFWL                                                                                              Page 20 of 26


                                                 Section 8               Testing data
                                                 Test name               Clause 15.239(c) Field strength of spurious emissions
                                                 Specification           FCC Part 15.239



8.5.3                       Test data


                             55


                             50


                             45


                             40
          Level in dBµV/m




                             35


                             30


                             25


                             20


                             15


                             10
                              30M           50          60        80     100M                     200            300     400     500       800       1G
                                                                                       Frequency in Hz

             Radiated emissions
        MaxPeak-MaxHold
        FCC Part 15.239 average limit line (250 uV/m)
        FCC Part 15.209 quasi-peak limit line
        MaxPeak (Single)
        QuasiPeak (Single)
        Average (Single)

                                                                Plot 8.5-1: Radiated spurious emissions, low channel

                                                             Table 8.5-2: Low channel radiated spurious emissions results
         Frequency, MHz                                      Field strength, dBµV/m                      Limit, dBµV/m                 Margin, dB
              88.00                                                    21.85                                 40.00                       18.15
             440.48                                                    32.40                                 46.00                       13.60




Report reference ID: 170757-1TRFWL                                                                                                               Page 21 of 26


                                                 Section 8               Testing data
                                                 Test name               Clause 15.239(c) Field strength of spurious emissions
                                                 Specification           FCC Part 15.239




8.5.3                       Test data, continued


                             55



                             50



                             45



                             40
          Level in dBµV/m




                             35



                             30



                             25



                             20



                             15



                             10
                              30M           50          60        80     100M                     200            300     400     500       800       1G
                                                                                       Frequency in Hz

            Radiated emissions
        MaxPeak-MaxHold
        FCC Part 15.239 average limit line (250 uV/m)
        FCC Part 15 .209 quasi-peak limit line
        MaxPeak (Single)
        Average (Single)

                                                                Plot 8.5-2: Radiated spurious emissions, mid channel

                                                             Table 8.5-3: Mid channel radiated spurious emissions results
         Frequency, MHz                                      Field strength, dBµV/m                      Limit, dBµV/m                 Margin, dB
             490.00                                                    34.1                                   46.0                        11.9




Report reference ID: 170757-1TRFWL                                                                                                               Page 22 of 26


                                                  Section 8              Testing data
                                                  Test name              Clause 15.239(c) Field strength of spurious emissions
                                                  Specification          FCC Part 15.239




8.5.3                       Test data, continued


                             55



                             50


                             45


                             40
          Level in dBµV/m




                             35


                             30



                             25


                             20


                             15



                             10
                              30M            50         60         80    100M                      200           300     400     500       800       1G
                                                                                       Frequency in Hz

             Radiated emissions
        MaxPeak-MaxHold
        FCC Part 15.239 average limit line (250 uV/m)
        FCC Part 15.209 quasi-peak limit line
        MaxPeak (Single)
        QuasiPeak (Single)
        Average (Single)

                                                                Plot 8.5-2: Radiated spurious emissions, high channel

                                                             Table 8.5-4: High channel radiated spurious emissions results
         Frequency, MHz                                      Field strength, dBµV/m                      Limit, dBµV/m                 Margin, dB
             108.00                                                    21.79                                 43.50                       21.71
             322.48                                                    27.60                                 46.00                       18.40
             430.00                                                    31.90                                 46.00                       14.10




Report reference ID: 170757-1TRFWL                                                                                                               Page 23 of 26


                             Section 9            Block diagrams of test set-ups




Section 9: Block diagrams of test set-ups
Radiated emissions set-up



          Radio absorbing
             material                                                                           Antenna
                                                                                                 mast

                                                                 Test
                                                               antenna




                                                       3m                                                    Variable
                                                                                                              search
                                                                                                              height

                                                                                                           4m
                                                                 Test
                                 EUT                           antenna




                            Non-conducting                                                            1m
                80 cm         Turntable



                                                          Metal ground plane


                                                                                                    To test receiver
Conducted emissions set-up

                                                                            Vertical ground
                                                                             plane 40 cm
                                                                              from EUT


                                          EUT
                                                              80 cm


                                                      Power
                                                      cable
                  80 cm
                                        Non-
                                     conducting
                                      Turntable
                                                                               LISN


                                                                 To test receiver             To power supply




Report reference ID: 170757-1TRFWL                                                                                      Page 24 of 26


                             Section 10   EUT photos




Section 10: EUT photos
EUT




Report reference ID: 170757-1TRFWL                     Page 25 of 26


                             Section 10   EUT photos




EUT, continued




Report reference ID: 170757-1TRFWL                     Page 26 of 26



Document Created: 2011-04-12 15:50:13
Document Modified: 2011-04-12 15:50:13

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