HAC 1023 Dipole Cal Cert

FCC ID: NM8PC36100

Test Report

Download: PDF
FCCID_1278208

Calibration Laboratory of                                          l3                                    S       Schweizerischer Kalibrierdienst




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Schmid & Partner                                                %                                        c Service suisse d‘étalonnage
  Engineering AG                                                E. zy                                            Servizio svizzero di taratura
Zeughausstrasse 43, 8004 Zurich, Switzerland                     é/,,/fi\\\\?                             S       gwiss Calibration Service
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Accredited by the Swiss Accreditation Service (SAS)
The Swiss Accreditation Service is one of the signatories to the EA
Multilateral Agreement for the recognition of calibration certificates




 Object



 Calibration procedure(s)




 Calibration date:


 Condition of the calibrated item



 This calibration certificate documents the traceability to national standards, which realize the physical units of measurements (S1).
 All calibrations have been conducted in the closed laboratory facility: environment temperature (22 + 3)°C and humidity < 70%.


 Calibration Equipment used (M&TE critical for calibration)


 Primary Standards                     ID #                      Cal Date (Certificate No.)                           Scheduled Calibration
 Power meter EPM—442A                  GB37480704                04—Oct—07 (No. 217—00736)                            Oct—08
 Power sensor HP 8481A                 US37292783                04—Oct—07 (No. 217—00736)                            Oct—08
 Probe ERSDV6                          SN: 2336                  31—Dec—07 (No. ER3—2336_Dec07)                       Dec—08
 Probe H3DV6                           SN: 6065                  31—Dec—07 (No. H3—6065_—Dec07)                       Dec—08
 DAE4                                  SN: 781                   2—Oct—07 (No. DAE4—781_Oct07)                        Oct—08




 Secondary Standards                   ID #                      Check Date (in house)                                Scheduled Check
 Power meter EPM—4419B                 GB42420191                11—May—05 (in house check Oct—07)                    In house check: Oct—08
 Power sensor HP 8482A                 US37295597                11—May—05 (in house check Oct—07)                    In house check: Oct—08
 Power sensor HP 8482H                 331809450                 08—Jan—02 (in house check Oct—07)                    In house check: Oct—08
 Network Analyzer HP 8753E             US37390585                18—Oct—01 (in house check Oct—07)                    In house check: Oct—09




                                                                              Function
 Calibrated by:



 Approved by:



                                                                                                                       Issued: July 23, 2008
This calibration certificate shall not be reproduced except in full without written approvalof the laboratory.

Certificate No: CD1880V3—1032_Jul08                                  Page 1 of 6


Calibration Laboratory of                                                                       Schweizerischer Kalibrierdienst
Schmid & Partner                                                                                Service suisse d‘étalonnage
  Engineering AG                                                                                Servizio svizzero di taratura
Zeughausstrasse 43, 8004 Zurich, Switzerland                                                    Swiss Calibration Service


Accredited by the Swiss Accreditation Service (SAS)                                          Accreditation No.: SCS 108
The Swiss Accreditation Service is one of the signatories to the EA
Multifateral Agreement for the recognition of calibration certificates



References
[1]       ANSI—C63.19—2006
          American National Standard for Methods of Measurement of Compatibility between Wireless
          Communications Devices and Hearing Aids.

Methods Applied and Interpretation of Parameters:
      *   Coordinate System: y—axis is in the direction of the dipole arms. z—axis is from the basis of the antenna
          (mounted on the table) towards its feed point between the two dipole arms. x—axis is normal to the other
          axes. In coincidence with standard {1}, the measurement planes (probe sensor center) are selected to
          be at a distance of 10 mm above the top edge of the dipole arms.
      *   Measurement Conditions: Further details are available from the hardcopies at the end of the certificate.
          All figures stated in the certificate are valid at the frequency indicated. The forward power to the dipole
          connector is set with a calibrated power meter connected and monitored with an auxiliary power meter
          connected to a directional coupler. While the dipole under test is connected, the forward power is
          adjusted to the same level.
      *   Antenna Positioning: The dipole is mounted on a HAC Test Arch phantom using the matching dipole
          positioner with the arms horizontal and the feeding cable coming from the floor. The measurements
          are performed in a shielded room with absorbers around the setup to reduce the reflections.
          It is verified before the mounting of the dipole under the Test Arch phantom, that its arms are perfectly
          in a line. it is installed on the HAC dipole positioner with its arms parallel below the dielectric reference
          wire and able to move elastically in vertical direction without changing its relative position to the top
          center of the Test Arch phantom. The vertical distance to the probe is adjusted after dipole mounting
          with a DASY4 Surface Check job. Before the measurement, the distance between phantom surface and
          probe tip is verified. The proper measurement distance is selected by choosing the matching section of
          the HAC Test Arch phantom with the proper device reference point (upper surface of the dipole) and the
          matching grid reference point (tip of the probe) considering the probe sensor offset. The vertical
          distance to the probe is essential for the accuracy.

      *   Feed Point Impedance and Return Loss: These parameters are measured using a HP 8753E Vector
          Network Analyzer. The impedance is specified at the SMA connector of the dipole. The influence of
          reflections was eliminating by applying the averaging function while moving the dipole in the air, at least
          70cm away from any obstacles.

      *   E+ field distribution: E field is measured in the x—y—plane with an isotropic ERSD—field probe with 100 mW
          forward power to the antenna feed point. In accordance with [1], the scan area is 20mm wide, its length
          exceeds the dipole arm length (180 or 90mm). The sensor center is 10 mm (in z) above the top of the
          dipole arms. Two 3D maxima are available near the end of the dipole arms. Assuming the dipole arms
          are perfectly in one line, the average of these two maxima (in subgrid 2 and subgrid 8) is determined to
          compensate for any non—parallelity to the measurement plane as well as the sensor displacement. The
          E—field value stated as calibration value represents the maximum of the interpolated 3D—E—field, 10mm
          above the dipole surface.
      *   H—field distribution: H—field is measured with an isotropic H—field probe with 100mW forward power to the
          antenna feed point, in the x—y—plane. The scan area and sensor distance is equivalent to the E—field
          scan. The maximum of the field is available at the center (subgrid 5) above the feed point. The H—field
          value stated as calibration value represents the maximum of the interpolated H—field, 10mm above the
          dipole surface at the feed point.




Certificate No: CD1880V3—1032_Jul08                             Page 2 of 6


1. Measurement Conditions
    DASY system configuration, as far as not given on page 1.
      DASY Version                                                       DASY4                     V4.7 B71
      DASY PP Version                                                SEMCAD                       V1.8 B184
      Phantom                                                     HAC Test Arch         SD HAC PO1 BA, #1070
      Distance Dipole Top — Probe Center                                  10 mm
      Scan resolution                                              dx, dy = 5 mm              area = 20 x 90 mm
      Frequency                                                 1880 MHz + 1 MHz

      Forward power at dipole connector                         20.0 dBm = 100mW
      Input power drift                                              <0.05 dB


2. Maximum Field values


      H—field 10 mm above dipole surface                                 condition       Interpolated maximum
      Maximum measured                                        100 mW forward power                0.467 A/m
    Uncertainty for H—field measurement: 8.2% (k=2)

      E—field 10 mm above dipole surface                                 condition       Interpolated maximum
      Maximum measured above high end                         100 mW forward power                 141.8 V/m
      Maximum measured above low end                          100 mW forward power                 140.0 V/m
      Averaged maximum above arm                              100 mW forward power                 140.9 V/im
    Uncertainty for E—field measurement: 12.8% (k=2)

3. Appendix

3.1 Antenna Parameters

      Frequency                               Return Loss                            impedance
     1710   MHz                               20.8    dB                             (50.1    + j9.1   ) Ohm
     1880   MHz                               20.6    dB                             (52.2    + j9.3   ) Ohm
     1900   MHz                               20.7    dB                             (54.9    + j8.4   ) Ohm
     1950   MHz                               27.2    dB                             ( 54.5   +j0.6    ) Ohm
     2000   MHz                               22.6    dB                             (493.6   4 {2.6   ) Ohm


3.2 Antenna Design and Handling

The calibration dipole has a symmetric geometry with a built—in two stub matching network, which leads to the
enhanced bandwidth.
The dipole is built of standard semirigid coaxial cable. The internal matching line is open ended. The antenna is
therefore open for DC signals.
Do not apply force to dipole arms, as they are liable to bend. The soldered connections near the feedpoint may
be damaged. After excessive mechanical stress or overheating, check the impedance characteristics to ensure
that the internal matching network is not affected.

After long term use with 40W radiated power, only a slight warming of the dipole near the feedpoint can be
measured.




Certificate No: CD18803—1032_JuI08                         Page 3 of 6


3.3 Measurement Sheets

3.3.1 Return Loss and Smith Chart




                                                     16 Jul 2008 11:59:04
 [CHT sii      Los       5 dB/REF —18 dB            2:—20.619 d8 i 880.000 800 MHz



                                                                                        CH1 Markers

                                                                                        1:—20,.810 dB
 Cor
                                                                                         1.71000 GHz
                                                                                        3:—20.713 dB
                                                                                         1.90000 GHz

                                                                                         ~27.188 dB
                                                                                         .95000 GHz
 Av
 16 *                                                                                   5:—22.635 dB
                                                                                         200000 GHz

  1

  CH2 $411     1 U FS          2 52154 a   27 a   787.54 pH         1 880.000 000 MHz



 Del                                                                                    CH2 Markers
                                                                                         1: 50.095 a
 Cor                                                                                        9.1484 a
                                                                                        1.71000 GHz

                                                                                                    &
                                                                                                    4


 Av                                                                                                 a
 16°                                                                                             GHz
                                                                                                    a

                                                                                            29     a
                                                                                            a 6035 &
                                                                                        2.00000 GHz

             CENTER 1 880.000 000 MHz                         SPAN 1 000.000 000 MHz




Certificate No: CD1880V3—1032_JuI08                Page 4 of 6


DASY4 H—Field Result

                                                                                 Date/Time: 15.07.2008 15:18:40

Test Laboratory: SPEAG Lab 2
DUT: HAC Dipole 1880 MHz; Type: CD1880V3; Serial: 1032
Communication System: CW; Frequency: 1880 MHz; Duty Cycle: 1:1
Medium parameters used: 0 = 0 mho/m, &, = 1; p= 1 kg/m‘
Phantom section: RF Section
Measurement Standard: DASY4 (High Precision Assessment)
DASY4 Configuration:
   *  Probe: H3DV6 — SN6065; Calibrated: 31.12.2007
    *   Sensor—Surface: (Fix Surface)
    *   Electronics: DAE4 Sn781; Calibrated: 02.10.2007
    *   Phantom: HAC Test Arch with AMCC; Type: SD HAC POI BA; Serial: 1070
    *   Measurement SW: DASY4, V4.7 Build 71; Postprocessing SW: SEMCAD, V1.8 Build 184


H Scan — measurementdistance from the probe sensor center to CD1880 Dipole = 10mm/Hearing Aid Compatibility
Test (41x181x1):
Measurement grid: dx=5mm, dy=5mm
Maximum value of peak Total field = 0.467 A/m
Probe Modulation Factor = 1.00
Device Reference Point: 0.000, 0.000, —6.30 mm
Reference Value = 0.494 A/m; Power Drift = 0.014 dB
Hearing Aid Near—Field Category: M2 (AWF 0 dB)


                                               Peak H—field in A/m

                                               Grid 1      Grid 2       Grid 3

                                               o.406       |o.425       |0.404
                                               M2          M2           M2

                                               Grid 4                   Grid 6
                                               0.447                    0.444
                                               mz                       mz
                                               Grid 7                   Grid 9

                                               0.411                    0.407
                                                M2                      M2



             dB          [               o                             im                  erm
             0.000       ‘

              —3.00     0|

              —6.00
                        |
             —9.00      ‘

             420        0|

             45.00      0_                .               .          n emres

                             0 dB = 0.467A/m


Certificate No: CD1880V3—1032_JuI08                           Page 5 of 6


3.3.2 DASY4 E—Field Result
                                                                               Date/Time: 16.07.2008 16:52:14

Test Laboratory: SPEAG Lab 2
DUT: HAC Dipole 1880 MHz; Type: CD1880V3; Serial: 1032
Communication System: CW; Frequency: 1880 MHz; Duty Cycle: 1:1
Medium parameters used: 0 = 0 mho/m, &= 1; p = 1000 kg/m*
Phantom section: RF Section
Measurement Standard: DASY4 (High Precision Assessment)
DASY4 Configuration:
    *   Probe: ER3DV6 — SN2336; ConvF(1, 1, 1); Calibrated: 31.12.2007
    *   Sensor—Surface: (Fix Surface)

    *   Electronics: DAE4 Sn781; Calibrated: 02.10.2007
    *   Phantom: HAC Test Arch with AMCC; Type: SD HAC PO1 BA; Serial: 1070
    *   Measurement SW: DASY4, V4.7 Build 71; Postprocessing SW: SEMCAD, V1.8 Build 184


E Scan — measurement distance from the probe sensor center to CD1880 Dipole = 10mm/Hearing Aid Compatibility
Test (41x181x1):
Measurement grid: dx=5mm, dy=5mm
Maximum value of peak Total field = 141.8 V/m
Probe Modulation Factor = 1.00
Device Reference Point: 0.000, 0.000, —6.30 mm
Reference Value = 153.3 V/m; Power Drift = 0.022 dB
Hearing Aid Near—Field Category: M2 (AWF 0 dB)


                                           Peak E—field in V/m

                                            Grid 1      Gria2    |Gria 3
                                            1363        |i4n8    |139.6
                                            mz          mz       mz
                                            Grid 4    | GridSs   Gria 6
                                            86.2                 85.6
                                            m3                   m3
                                            Grid 7     Grid 8    Grid 9
                                            134.4      140.0     136.7
                                            M2         M2        M2


                         dB
                         0.000



                         .58



                         318




                         417



                         <6.36




                         —7.95



                                 0 dB = 141.8V/m


Certificate No: CD1880V3—1032_JuI08                       Page 6 of 6



Document Created: 2019-08-31 04:17:50
Document Modified: 2019-08-31 04:17:50

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