Revised test report

FCC ID: PZ3-FM72

Test Report

Download: PDF
FCCID_183838

              ..
               ..                                         L.S. Research Inc.

                ..                                        W66 N220 Commerce Court

                 ..                                       Cedarburg, WI 53012

                  ..
                                                          Phone 414.375.4400
                                                          Fax 414.375.4248



            LS Research Inc.


            Quartex Synchronization
            Transmitter

.      .               .   .      .       .       .   .               .             .
                               Question 2 and 4




    Part 90 Type Acceptance, Conducted Measurements
    V1.1
    prepared for


    Quartex, Division of Primex, Inc.



                                                          Revision 1.0


               L.S. RESEARCH Inc.                                                                                                                                   2
               HIGH TECHNOLOGY ELECTRONIC CONSULTANTS                                                                                                   Confidential




                      Table of Contents


I.        PROJECT INFORMATION..............................................................................................................................3

II. FCC CONDUCTED TESTS..............................................................................................................................5
     A.     PART 90 SUBPART I ............................................................................................................................................5
          1. 90.207 (a) (1) Types of Emmisions (Device Classification) .........................................................................5
          2. 90.209 (a) (5) Bandwidth Limitations (Device Classification, Test Condition). .........................................5
          3. Part 2.1046 Output Power, Part 2.1051 Spurious Emissions at Antenna terminals and Part 2.1049
          Occupied bandwidth using 90.210 (c) Emission Mask for F1D Transmitter. .......................................................6
          4. Part 2.1055 and 90.213 (a) and (d) Frequency Stability.............................................................................12
          5. Part2.1033(c)(8) DC currents and voltages supplied to the finalamplifier stage......................................15
III.         EQUIPMENT LIST ......................................................................................................................................16

IV.          EQUIPMENT UNCERTAINTIES ..............................................................................................................16

V.        UNCERTAINTY ANALYSIS ..........................................................................................................................17




                                    WE HAVE DESIGNS ON THE FUTURE
           W66 N220 Commerce Court, Cedarburg, Wisconsin 53012 • 414-375-4400 • FAX 414-375-4248
                                    Email: eng@lsr.com     www.lsr.com


       L.S. RESEARCH Inc.                                                                   3
       HIGH TECHNOLOGY ELECTRONIC CONSULTANTS                                      Confidential




           Surveillance Transmitter
I. Project Information

Project:      Surveillance Transmitter



Quartex Contact:

Company: Quartex
Full Name: Mike Pikula
Job Title: Electronic Project
Engineer
1012 Host Drive
Lake Geneva, WI 53147
Bus: (262) 248-1540
Bus Fax: (262) 248-3666
E-mail: mpikula@quartexuasa.com




                             WE HAVE DESIGNS ON THE FUTURE
    W66 N220 Commerce Court, Cedarburg, Wisconsin 53012 • 414-375-4400 • FAX 414-375-4248
                             Email: eng@lsr.com     www.lsr.com


      L.S. RESEARCH Inc.                                                                    4
      HIGH TECHNOLOGY ELECTRONIC CONSULTANTS                                       Confidential


LS Research Contact:

          Bill Steinike, Operations Manager
          Mike Jonely, Test Engineer
          Brian Petted, Vice President of Engineering
          Voice: 414-375-4400
          Fax: 414-375-4248
          Email: bsteinike@lsr.com

          Proposal Date:
          Revision:
          Proposal #:
          Proposal File:
          Job Number:




Signatures:



Technical Approval




                             WE HAVE DESIGNS ON THE FUTURE
    W66 N220 Commerce Court, Cedarburg, Wisconsin 53012 • 414-375-4400 • FAX 414-375-4248
                             Email: eng@lsr.com     www.lsr.com


      L.S. RESEARCH Inc.                                                                      5
      HIGH TECHNOLOGY ELECTRONIC CONSULTANTS                                         Confidential


II. FCC Conducted Tests

      A. Part 90 Subpart I


             1. 90.207 (a) (1) Types of Emissions (Device Classification)


                Classified as an F1D emitter (Frequency Modulation, Digital Modulation,
                Data). Power level: 1W.


             2. 90.209 (a) (5) Bandwidth Limitations (Device Classification, Test Condition).


                20 kHz Nominal Channel Bandwidth




                            WE HAVE DESIGNS ON THE FUTURE
   W66 N220 Commerce Court, Cedarburg, Wisconsin 53012 • 414-375-4400 • FAX 414-375-4248
                            Email: eng@lsr.com     www.lsr.com


  L.S. RESEARCH Inc.                                                                             6
  HIGH TECHNOLOGY ELECTRONIC CONSULTANTS                                                Confidential

         3. Part 2.1046 Output Power, Part 2.1051 Spurious Emissions at Antenna
            terminals and Part 2.1049 Occupied bandwidth using 90.210 (c) Emission Mask
            for F1D Transmitter.
                 a)   Test Requirement:


                      (1) On any frequency removed from the center of the authorized bandwidth
                      by a displacement frequency (fd in kHz) of more than 5kHz but not more
                      than 10kHz: At least 83 log (fd/5) dB.

                      (2) On any frequency removed from the center of the authorized bandwidth
                      by a displacement frequency (fd in kHz) of more than 10 kHz but no more
                      than 250 percent of the authorized bandwidth: At least 29 log (fd2/11) dB or
                      50 dB, whichever is the lesser attenuation.

                      (3) On any frequency removed from the center of the authorized bandwidth
                      by more than 250 percent of the authorized bandwidth: At least 43 + 10 log
                      (P) dB. P is output power in Watts.

                      The test condition is presented in Tabular form below. The definition of the
                      spectrum mask as indicated on the spectrum analyzer is also presented.

              90.210 (c)      Absolute Frequency            Attenuation relative to Carrier
                                Offset Range:                         power P.

                                          |fd|

                  (1)              0 to 5 kHz                             0 dB

                  (1)           5 kHz to 10 kHz                      83 log (fd/5) dB

                  (2)           10 kHz to 70 kHz         29 log (fd2/11) dB or 50 dB, whichever
                                                                 is the lesser attenuation.

                  (3)         Greater than 70 kHz                  43 + 10 log (P) dB




                         WE HAVE DESIGNS ON THE FUTURE
W66 N220 Commerce Court, Cedarburg, Wisconsin 53012 • 414-375-4400 • FAX 414-375-4248
                         Email: eng@lsr.com     www.lsr.com


  L.S. RESEARCH Inc.                                                                                            7
  HIGH TECHNOLOGY ELECTRONIC CONSULTANTS                                                               Confidential

                        16:12:06 Oct 29, 2001
                                                                                      Marker

           Ref -10 dBm         #Atten 0 dB
                                                                                Select Marker
           Peak
                                                                                1       2   3     4
           Log
           10
           dB/                                                                              Normal


                                                                                             Delta


                                                                                        Band Pair
                                                                                Start           Stop

           W1 S2
           S3 FC                                                                        Span Pair
                                                                                Span        Center
              AA

                                                                                                Off


           Center 72.24 MHz                                     Span 50 kHz
                                                                                             More
                                                                                             1 of 2
           Res BW 300 Hz                 VBW 300 Hz   Sweep 2.226 s (401 pts)
           A:\LIMIT125.LIM file saved


                   b)    Test Configuration



                                                                HP
                                                              E4402B




                           Data Capture



                                                                            RF Output



                                                                                    Equipment Under
                                                                                          Test
                                                                                      (Transmitter)
                         PC




                                                  Equipment Under
                                                  Test Configuration




                         WE HAVE DESIGNS ON THE FUTURE
W66 N220 Commerce Court, Cedarburg, Wisconsin 53012 • 414-375-4400 • FAX 414-375-4248
                         Email: eng@lsr.com     www.lsr.com


       L.S. RESEARCH Inc.                                                                                    8
       HIGH TECHNOLOGY ELECTRONIC CONSULTANTS                                                       Confidential

                       c)   Equipment Under Test Conditions, Instrument Conditions and Indicated
                            Numerical Data for Part 2.1046 Output Power.


                            Presented below is a table that summarizes the equipment under test
                            conditions, instrument conditions and numerical data. Numerical Data for the
                            Transmitter Power under each of the test conditions is indicated in the Table.
                            The source of the numerical data is presented in sub-sections(e),and (f), Test
                            Indications. Demonstration of compliance is presented in sub-sections (e) and
                            (f).

              Set f   Maximum     Measured        2nd       fcenter     fspan    fstart    fstop   RBW       VB
             (MHz      Power       Power       Harmonic     (MHz)       (kHz    (MHz)     (MHz)    (kHz)     W
               )       Output       Out         (dBc)                     )                                 (kHz
                      Allowed      (dBm)                                                                      )
                       (dBm)

Conductd     72.24      +30         +27.64       -57.84                           60       150      30       30
Emission-
Harmonic
 Output

             72.24                                                                10      1000      10       10

Conducted    72.24      +30                                  72.24       50                        0.100    0.100
Emission –
 Occupied
Bandwidtrh

         NOTES: Po measured on the Gigatronics 8542C; all cable losses measured and accounted for.



                            Set f : E.U.T Carrier frequency Setting .

                            Po: Measured Absolute Output Power (HP 8920B)

                            2nd : Second Harmonic Level in dB relative to the fundamental power

                            fcenter: Spectrum Analyzer Center Frequency Setting

                            span: Spectrum Analyzer Frequency Span Setting.

                            fstart: Spectrum Analyzer Start Frequency

                            fstop: Spectrum Analyzer Stop Frequency

                            RBW: Spectrum Analyzer Resolution Bandwidth.

                            VBW: Spectrum Analyzer Video Bandwidth.




                             WE HAVE DESIGNS ON THE FUTURE
    W66 N220 Commerce Court, Cedarburg, Wisconsin 53012 • 414-375-4400 • FAX 414-375-4248
                             Email: eng@lsr.com     www.lsr.com


  L.S. RESEARCH Inc.                                                                                                       9
  HIGH TECHNOLOGY ELECTRONIC CONSULTANTS                                                                          Confidential

                 d)    Test Indications Part 2. 1046 Conducted Spurious Emissions at Antenna Terminals




                            14:59:51 Oct 30, 2001
                                                                                                    Marker
                                                                        ∆ Mkr1 72.2 MHz
               Ref 10 dBm            #Atten 20 dB                              -57.84 dB
                                                                                            Select Marker
               Peak
                                1R                                                          1       2        3        4
               Log
               10
               dB/                                                                                          Normal


                                                                                                             Delta
                        Marker ∆
                        72.200000 MHz
                                                                                                     Band Pair
                        -57.84 dB                                                     1     Start                Stop

               M1 S2
               S3 FS                                                                                 Span Pair
                                                                                            Span            Center
                  AA

                                                                                                                 Off


               Start 60 MHz                                                 Stop 150 MHz
                                                                                                             More
                                                                                                             1 of 2
               #Res BW 30 kHz                       VBW 30 kHz   Sweep 250 ms (401 pts)
               A:\SCREN134.WMF file saved


                            15:48:49 Oct 30, 2001
                                                                                                    Trace

               Ref 8 dBm             #Atten 20 dB
                                                                                                            Trace
               Peak
                                                                                            1           2             3
               Log
               10
               dB/                                                                                  Clear Write


                                                                                                        Max Hold


                                                                                                        Min Hold

               W1 S2
               S3 FS                                                                                         View
                  AA

                                                                                                             Blank


               Start 10 MHz                                                    Stop 1 GHz
                                                                                                             More
                                                                                                             1 of 2
               #Res BW 10 kHz                       VBW 10 kHz   Sweep 24.75 s (401 pts)
               A:\SCREN138.WMF file saved



      Test Condition: 72.24 MHz, 27.5 dBm

      Test Limit: 10 log (1 W) + 43 dB = 43

      Test Indication: 57.84

      Test Outcome: 57.84 dBc > 43 dBc → PASS

                         WE HAVE DESIGNS ON THE FUTURE
W66 N220 Commerce Court, Cedarburg, Wisconsin 53012 • 414-375-4400 • FAX 414-375-4248
                         Email: eng@lsr.com     www.lsr.com


  L.S. RESEARCH Inc.                                                                                          10
  HIGH TECHNOLOGY ELECTRONIC CONSULTANTS                                                             Confidential




                   e)    Test Indications Part 2. 1049 Occupied Bandwidth


                         3. Reference Level setting under these conditions:

                           (a) Span = 50 kHz.

                           (b) Resolution Bandwidth = 100 Hz.

                           (c) Video Bandwidth = 100 Hz.

                           (d) Set Reference Level to the peak of the unmodulated carrier




                    10:03:33 Oct 30, 2001
                                                                                  Amplitude
                                                            Mkr1 72.0998 MHz
         Ref 7.418 dBm       Atten 20 dB                          7.418 dBm
                                                                                       Ref Level
         Peak                                 1
                                                                                         7.42 dBm
         Log                                                              *
         10                                                                       Attenuation
         dB/                                                                             20.00 dB
                                                                                Auto           Man

                                                                                       Scale/Div
                 Ref Level                                                               10.00 dB

                 7.42 dBm
                                                                                      Scale Type
                                                                                Log            Lin

         W1 S2
         S3 FS
            AA




         Center 72.1 MHz                                         Span 50 kHz
                                                                                            More
                                                                                           1 of 3
         #Res BW 100 Hz                VBW 100 Hz      Sweep 2.86 s (401 pts)
         C:\STATE127.STA file saved




                         4. Measurement Indication under these conditions:

                           (a) Span =50 kHz

                           (b) Resolution Bandwidth = 100 Hz.

                           (c) Video Bandwidth = 100 Hz.

                           (d) Peak Hold for > 10 Sweeps


                         WE HAVE DESIGNS ON THE FUTURE
W66 N220 Commerce Court, Cedarburg, Wisconsin 53012 • 414-375-4400 • FAX 414-375-4248
                         Email: eng@lsr.com     www.lsr.com


  L.S. RESEARCH Inc.                                                                                     11
  HIGH TECHNOLOGY ELECTRONIC CONSULTANTS                                                        Confidential

                            12:53:03 Oct 30, 2001
                                                                                        Sweep
                                                               Mkr1 72.2398 MHz
             Ref 7.418 dBm         Atten 20 dB                      -9.974 dBm          Sweep Time
             Peak                                                                           15.00 s
             Log                                                                   Auto          Man
             10                                     1

             dB/                                                                            Sweep
                                                                                   Cont       Single

                                                                                    Swp Coupling
                                                                                   SR             SA

                                                                                              Gate
                                                                                   On            Off

             M1 S2
             S3 FC                                                                      Gate Setup
                AA

                                                                                             Points
                                                                                                 401


             Center 72.24 MHz                                       Span 50 kHz         Segmented
             #Res BW 100 Hz                   VBW 100 Hz   #Sweep 15 s (401 pts)




      Test Condition: 72.24 MHz, 27.5dBm

      Test Limit: Indicated Mask (see sub-section (a)

      Test Indication: Indicated Spectrum falls below Indicated Mask

      Test Outcome: Spectrum falls below Indicated Mask → PASS
                        .




                         WE HAVE DESIGNS ON THE FUTURE
W66 N220 Commerce Court, Cedarburg, Wisconsin 53012 • 414-375-4400 • FAX 414-375-4248
                         Email: eng@lsr.com     www.lsr.com


  L.S. RESEARCH Inc.                                                                            12
  HIGH TECHNOLOGY ELECTRONIC CONSULTANTS                                               Confidential




         4. Part 2.1055 and 90.213 (a) Frequency Stability


                 a)   Test Requirement



                      Mobile stations operating in the 72 to 76 MHz frequency range below
                      2W output power must have an absolute frequency stability of 50 ppm.

                      Test in accordance to conditions called out in Part 2.1055 (a) (1):
                      Frequency stability must be measured from –30 to 50 degrees
                      centigrade for (b) steps of 10 degrees allowing for thermal
                      equilibrium.

                 b)   Test Configuration


                                                  HP
                                                 8920B




             Data Capture



                                                             RF Output



                                                               Equipment Under
                                                                     Test
                                                                 (Transmitter)
            PC                                                  Equipment Under Test
                                                                      Placed In
                                                                     Thermotron
                                                                        S-8C
                                                                Temperature Chamber



                                    Equipment Under
                                    Test Configuration




                 c)   Test Conditions, Numerical Test Indications

                         WE HAVE DESIGNS ON THE FUTURE
W66 N220 Commerce Court, Cedarburg, Wisconsin 53012 • 414-375-4400 • FAX 414-375-4248
                         Email: eng@lsr.com     www.lsr.com


  L.S. RESEARCH Inc.                                                                          13
  HIGH TECHNOLOGY ELECTRONIC CONSULTANTS                                             Confidential




                    Set Temperature    Frequency Measured     Frequncy Error (ppm)
                          (C)                (MHz)

                         -30               72.240172                  2.34

                         -20               72.240110                  1.53

                         -10               72.240111                  1.53

                          0                72.240089                  1.23

                          10               72.240091                  1.26

                          20               72.240091                  1.26

                          30               72.240100                  1.39

                          40               72.240094                  1.30

                          50               72.240077                  1.07




      Test Condition: 72.24 MHz, 27.5dBm (-30 deg. C to 50 deg C, 10 degree steps)

      Test Limit: 50 ppm Maximum Frequency Offset

      Test Indication: Frequency Display on the HP 8920B

      Maximum Frequency Offset is 2.34

      Test Outcome: and 2.34 ppm < 50 ppm → PASS




      5. Part 2.1055(d)(1) Frequency stability with respect to voltage.

             a. Vary the supply voltage from 85% to 115% of the nominal value
                         WE HAVE DESIGNS ON THE FUTURE
W66 N220 Commerce Court, Cedarburg, Wisconsin 53012 • 414-375-4400 • FAX 414-375-4248
                         Email: eng@lsr.com     www.lsr.com


  L.S. RESEARCH Inc.                                                                              14
  HIGH TECHNOLOGY ELECTRONIC CONSULTANTS                                                 Confidential




                                                         HP
                                                        8920B




                      Data Capture




                                                                RF Output

                                                                       Equipment Under
                                               DC                            Test
                                              input                      (Transmitter)
                    PC

                                            9vdc
                                         regulated
                                           power
                                           supply                       HP6843A




                                                                                    AC
                                                                                   Output




                                             Equipment Under
                                             Test Configuration




      Voltage                        Frequency Measured                Voltage measured (HP6843A)

      138 VAC (115% of nominal)      72.240105 MHz                     138.12VAC



                         WE HAVE DESIGNS ON THE FUTURE
W66 N220 Commerce Court, Cedarburg, Wisconsin 53012 • 414-375-4400 • FAX 414-375-4248
                         Email: eng@lsr.com     www.lsr.com


  L.S. RESEARCH Inc.                                                                    15
  HIGH TECHNOLOGY ELECTRONIC CONSULTANTS                                       Confidential


      120VAC (Nominal)            72.240101 MHz                120.08VAC

      102VAC (85% of nominal)     72.240109 MHz                102.11VAC



      Test Condition: 72.24 MHz, 27.5dBm

      Test Limit: 50 ppm Maximum Frequency Offset

      Test Indication: Frequency Display on the HP 8920B

      Maximum Frequency Offset is 1.51ppm

      Test Outcome: and 1.51 ppm < 50 ppm → PASS


      6. 2.1033(c)(8) Provide an exhibit showing the DC currents and voltages supplied to
      the final amplifier stage.

         Total measured current into the final amplifier is 375mA at 4.96Vdc




                         WE HAVE DESIGNS ON THE FUTURE
W66 N220 Commerce Court, Cedarburg, Wisconsin 53012 • 414-375-4400 • FAX 414-375-4248
                         Email: eng@lsr.com     www.lsr.com


      L.S. RESEARCH Inc.                                                                                   16
      HIGH TECHNOLOGY ELECTRONIC CONSULTANTS                                                      Confidential



III. Equipment List


                                Equipment                              LSR Serial No.             Serial Num ber                 Calibration
                       HP E4402B Spectrum Analyzer                           -                     US39010240                     4/30/01
                      HP 8920B Comm unication Test Set                                             3820A10282                      1/5/99
                      Thermotron S-8C Tem p Chamber                     CC000210C                   O n Record                     6/5/98
                             Gigatronics 8542C                                                       1831450                      8/15/01




IV. Equipment Uncertainties

                                            Specified Characteristic                  Specified                  Specified
                                                                                  Probability Density            Uncertainty
                                         HP8591E Spectrum Analyzer
                                          Reference Level Accuracy                      Uniform         +/-0.3 dB +0.01 X dB from -
                                                                                                                 20 dbm
                                                Calibrator Output                       Uniform                   +/-0.4 dB
                                   Absolute Amplitude Calibration Uncertainty           Uniform                   +/-0.15 dB
                                  Gigatronics 86301A Sensor Calibration Factor          Uniform                     1.33%

                                       HP8920A Communication Test Set
                                         RF Frequency Measurement                       Uniform                    +/-1ppm
                                       Thermotron S-8C Temp. Chamber
                                           Temperature Accuracy                         Uniform                  +/- 0.3 deg C




                                               WE HAVE DESIGNS ON THE FUTURE
                      W66 N220 Commerce Court, Cedarburg, Wisconsin 53012 • 414-375-4400 • FAX 414-375-4248
                                               Email: eng@lsr.com     www.lsr.com


      L.S. RESEARCH Inc.                                                                       17
      HIGH TECHNOLOGY ELECTRONIC CONSULTANTS                                          Confidential


V. Uncertainty Analysis



    HP Spectrum Analyzer Total Uncertainty (-60 dBm level):

    Perform Root-Sum-Square of three uncertainties to find total uncertainty for a 95% confidence level:

    Uniform uncertainties specify the probability density interval ±a. The variance of the uniform density is a/3.

    Sum the uncorrelated variances to find the total variance:

    Total variance = [(0.3 dB +0.01 • 40 dB)/3 +(0.4)/3+(0.15)/3] = 1.25/3 = 0.416

    The uncertainty for a 95% confidence interval is 1.96 times the standard deviation:

    Total Uncertainty = ±1.96 • √0.416 = 1.96 • 0.644 = ±1.26 dB




                                               WE HAVE DESIGNS ON THE FUTURE
                      W66 N220 Commerce Court, Cedarburg, Wisconsin 53012 • 414-375-4400 • FAX 414-375-4248
                                               Email: eng@lsr.com     www.lsr.com



Document Created: 2001-12-16 13:29:45
Document Modified: 2001-12-16 13:29:45

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