LTE Test Report 3

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Test Report

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                     Plot 7-25. Upper Band Edge Plot (Band 30 - 10.0MHz QPSK - Full RB Configuration)




           Plot 7-26. Upper Extended Band Edge Plot (Band 30 - 10.0MHz QPSK - Full RB Configuration)



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Band 30 – Diversity Antenna




                      Plot 7-27. Lower Band Edge Plot (Band 30 - 5.0MHz QPSK - Full RB Configuration)




                 Plot 7-28. Lower Extended Band Edge Plot (Band 30 - 5.0MHz QPSK - Full RB Configuration)

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                      Plot 7-29. Upper Band Edge Plot (Band 30 - 5.0MHz QPSK - Full RB Configuration)




             Plot 7-30. Upper Extended Band Edge Plot (Band 30 - 5.0MHz QPSK - Full RB Configuration)


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                    Plot 7-31. Lower Band Edge Plot (Band 30 - 10.0MHz QPSK - Full RB Configuration)




           Plot 7-32. Lower Extended Band Edge Plot (Band 30 - 10.0MHz QPSK - Full RB Configuration)



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                     Plot 7-33. Upper Band Edge Plot (Band 30 - 10.0MHz QPSK - Full RB Configuration)




           Plot 7-34. Upper Extended Band Edge Plot (Band 30 - 10.0MHz QPSK - Full RB Configuration)



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7.5              Radiated Power (EIRP)
Test Overview

Equivalent Isotropic Radiated Power (EIRP) measurements are performed using the method described in ANSI/TIA-
603-E-2016. All measurements are performed as RMS average measurements while the EUT is operating at its
maximum duty cycle, at maximum power, and at the appropriate frequencies.


Test Procedures Used

KDB 971168 D01 v03r01 – Section 5.2.1


Test Settings

The relevant equation for determining the ERP or EIRP from the conducted RF output power measured is:

ERP/EIRP = PMeas – LC + GT

Where:

ERP/EIRP = effective or equivalent radiated power, respectively (expressed in the same units as PMeas, typically
dBW or dBm)

PMeas = measured transmitter output power or PSD, in dBW or dBm

LC = signal attenuation in the connecting cable between the transmitter and antenna in dB

GT = gain of the transmitting antenna, in dBd (ERP) or dBi (EIRP)


Test Setup

The EUT and measurement equipment were set up as shown in the diagram below.




                                                          Figure 7-4. ERP/EIRP Measurement Setup




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Test Notes

      1) The EUT was tested in three orthogonal planes and in all possible test configurations and positioning. The
         worst case emissions are reported with the EUT positioning, modulations, RB sizes and offsets, and
         channel bandwidth configurations shown in the tables below.

      2) This unit was tested while powered by an Power Over Ethernet (POE) power source.

      3) The Level (dBm) readings in the table were taken with a correction table loaded into the base station
         simulator. The correction table was used to account for the signal attenuation in the connecting cable
         between the transmitter and antenna.

      4) The Ant. Gains (GT) are listed in dBi.




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7.5.1            Main Antenna Radiated Power (ERP/EIRP)

           Channel                                                       Conducted
Frequency                                              RB                                     Ant. Gain            EIRP                 EIRP                  EIRP Limit           Margin
          Bandwidth                   Mod.                                 Power
  [MHz]                                            Size/Offset                                  [dBi]           [dBm/5MHz]           [Watts/5MHz]            [dBm/5MHz]             [dB]
            [MHz]                                                       [dBm/5MHz]

   2307.50               5            QPSK               1/0                 14.93               17.00               31.93                 1.560                  33.01              -1.08

   2312.50               5            QPSK               1/0                 14.91               17.00               31.91                 1.552                  33.01              -1.10

   2312.50               5          16-QAM               1/0                 14.91               17.00               31.91                 1.552                  33.01              -1.10

   2312.50               5          64-QAM               1/0                 14.98               17.00               31.98                 1.578                  33.01              -1.03

   2310.00              10            QPSK               1/0                 15.06               17.00               32.06                 1.607                  33.01              -0.95

   2310.00              10          16-QAM               1/0                 15.01               17.00               32.01                 1.589                  33.01              -1.00

   2310.00              10          64-QAM               1/0                 14.98               17.00               31.98                 1.578                  33.01              -1.03

                                                                    Table 7-3. EIRP Data (Band 30)




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7.5.2            Diversity Antenna Radiated Power (ERP/EIRP)

           Channel                                                       Conducted
Frequency                                              RB                                     Ant. Gain            EIRP                 EIRP                  EIRP Limit           Margin
          Bandwidth                   Mod.                                 Power
  [MHz]                                            Size/Offset                                  [dBi]           [dBm/5MHz]           [Watts/5MHz]            [dBm/5MHz]             [dB]
            [MHz]                                                       [dBm/5MHz]

   2307.50               5            QPSK              12 / 6               14.83               17.00               31.83                 1.524                  33.01              -1.18

   2312.50               5            QPSK              1 / 24               15.25               17.00               32.25                 1.679                  33.01              -0.76

   2312.50               5          16-QAM              1 / 24               14.37               17.00               31.37                 1.371                  33.01              -1.64

   2312.50               5          64-QAM              1 / 24               13.36               17.00               30.36                 1.086                  33.01              -2.65

   2310.00              10            QPSK              1 / 49               14.98               17.00               31.98                 1.578                  33.01              -1.03

   2310.00              10          16-QAM              1 / 49               14.33               17.00               31.33                 1.358                  33.01              -1.68

   2310.00              10          64-QAM              1 / 49               13.30               17.00               30.30                 1.072                  33.01              -2.71

                                                                    Table 7-4. EIRP Data (Band 30)




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7.6              Radiated Spurious Emissions Measurements
Test Overview

Radiated spurious emissions measurements are performed using the substitution method described in ANSI/TIA-
603-E-2016 with the EUT transmitting into an integral antenna. Measurements on signals operating below 1GHz
are performed using vertically and horizontally polarized tuned dipole antennas. Measurements on signals operating
above 1GHz are performed using vertically and horizontally polarized broadband horn antennas.

Test Procedures Used

KDB 971168 D01 v03r01 – Section 5.8

ANSI/TIA-603-E-2016 – Section 2.2.12

Test Settings

      1. RBW = 100kHz for emissions below 1GHz and 1MHz for emissions above 1GHz

      2. VBW ≥ 3 x RBW

      3. Span = 1.5 times the OBW

      4. No. of sweep points > 2 x span / RBW

      5. Detector = RMS

      6. Trace mode = Average (Max Hold for pulsed emissions)

      7. The trace was allowed to stabilize




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Test Setup

The EUT and measurement equipment were set up as shown in the diagram below.




                                                   Figure 7-5. Test Instrument & Measurement Setup

Test Notes

      1) The EUT was tested in three orthogonal planes and in all possible test configurations and positioning. The
         worst case emissions are reported with the EUT positioning, modulations, RB sizes and offsets, and
         channel bandwidth configurations shown in the tables below.

      2) This unit was tested while powered by an Power Over Ethernet (POE) power source.

      3) The spectrum is measured from 9kHz to the 10th harmonic of the fundamental frequency of the transmitter.
         The worst-case emissions are reported.

      4) Emissions below 18GHz were measured at a 3 meter test distance while emissions above 18GHz were
         measured at a 1 meter test distance with the application of a distance correction factor.

      5) The "-" shown in the following RSE tables are used to denote a noise floor measurement.




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7.6.1            Main Antenna Radiated Spurious Emissions Measurements

Band 30




                                           Plot 7-35. Radiated Spurious Plot 1GHz - 18GHz (Band 30)




                                        Plot 7-36. Radiated Spurious Plot 18GHz – 26.5GHz (Band 30)




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                               OPERATING FREQUENCY:                                                      2310.00                                MHz
                                      MODULATION SIGNAL:                                   QPSK
                                                       BANDWIDTH:                            10.0                MHz
                                                          DISTANCE:                            3                 meters
                                                                   LIMIT:                     -40                dBm


                                Ant.        Antenna Turntable    Level at                                           Substitute                     Spurious
        Frequency                                                                                                                                                                Margin
                                Pol.         Height  Azimuth    Antenna                                            Antenna Gain                  Emission Level
          [MHz]                                                                                                                                                                   [dB]
                               [H/V]          [cm]  [degree] Terminals [dBm]                                           [dBi]                         [dBm]

           4620.00                V             125                 267                    -61.11                          10.92                          -50.19                    -10.2
           6930.00                V                -                  -                    -73.12                          11.75                          -61.37                    -21.4
                                              Table 7-5. Radiated Spurious Data (Band 30 – Mid Channel)




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7.6.2            Diversity Antenna Radiated Spurious Emissions Measurements

Band 30




                                           Plot 7-37. Radiated Spurious Plot 1GHz - 18GHz (Band 30)




                                        Plot 7-38. Radiated Spurious Plot 18GHz – 26.5GHz (Band 30)




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                               OPERATING FREQUENCY:                                       2307.50                                               MHz
                                      MODULATION SIGNAL:                                   QPSK
                                                      BANDWIDTH:                              5.0                MHz
                                                          DISTANCE:                            3                 meters
                                                                   LIMIT:                     -40                dBm


                                Ant.        Antenna Turntable    Level at                                           Substitute                     Spurious
        Frequency                                                                                                                                                                Margin
                                Pol.         Height  Azimuth    Antenna                                            Antenna Gain                  Emission Level
          [MHz]                                                                                                                                                                   [dB]
                               [H/V]          [cm]  [degree] Terminals [dBm]                                           [dBi]                         [dBm]

           4615.00                H             150                 227                    -64.99                          10.91                          -54.08                    -14.1
           6925.00                H             169                  27                    -65.13                          11.73                          -53.40                    -13.4
                                             Table 7-6. Radiated Spurious Data (Band 30 – Low Channel)

                               OPERATING FREQUENCY:                                       2312.50                                               MHz
                                      MODULATION SIGNAL:                                   QPSK
                                                      BANDWIDTH:                              5.0                MHz
                                                          DISTANCE:                            3                 meters
                                                                   LIMIT:                     -40                dBm


                                Ant.        Antenna Turntable    Level at                                           Substitute                     Spurious
        Frequency                                                                                                                                                                Margin
                                Pol.         Height  Azimuth    Antenna                                            Antenna Gain                  Emission Level
          [MHz]                                                                                                                                                                   [dB]
                               [H/V]          [cm]  [degree] Terminals [dBm]                                           [dBi]                         [dBm]

           4625.00                H             145                 231                    -62.23                          10.92                          -51.31                    -11.3
           6935.00                H             162                  30                    -67.03                          11.75                          -55.28                    -15.3
                                             Table 7-7. Radiated Spurious Data (Band 30 – High Channel)




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7.7              Frequency Stability / Temperature Variation
Test Overview and Limit

Frequency stability testing is performed in accordance with the guidelines of ANSI/TIA-603-E-2016. The frequency
stability of the transmitter is measured by:

a.)       Temperature: The temperature is varied from -30°C to +50°C in 10°C increments using an environmental
          chamber.

For Part 27, the frequency stability shall be sufficient to ensure that the fundamental emission stays within
the authorized frequency block.

Test Procedure Used

ANSI/TIA-603-E-2016

Test Settings

      1. The carrier frequency of the transmitter is measured at room temperature (20°C to provide a reference).
      2. The equipment is turned on in a “standby” condition for fifteen minutes before applying power to the
         transmitter. Measurement of the carrier frequency of the transmitter is made within one minute after
         applying power to the transmitter.
      3. Frequency measurements are made at 10°C intervals ranging from -30°C to +50°C. A period of at least
         one half-hour is provided to allow stabilization of the equipment at each temperature level.

Test Setup

The EUT was connected via an RF cable to a spectrum analyzer with the EUT placed inside an environmental
chamber.

Test Notes

None




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Band 30 Frequency Stability Measurements

                           OPERATING FREQUENCY:                                            2,310,000,000                        Hz
                                                       CHANNEL:                                  27710
                               REFERENCE VOLTAGE:                                                37.00                           VDC




                              VOLTAGE                      POWER                 TEMP              FREQUENCY                     Freq. Dev.             Deviation
                                                                                   o
                                (%)                         (VDC)                 ( C)                (Hz)                          (Hz)                  (%)

                                 100 %                        37.00               - 30             2,309,999,776                      -224             -0.0000097

                                 100 %                                            - 20             2,309,999,528                      -472             -0.0000204

                                 100 %                                            - 10             2,309,999,535                      -465             -0.0000201

                                 100 %                                                 0           2,309,999,766                      -234             -0.0000101

                                 100 %                                            + 10             2,309,999,881                      -119             -0.0000052

                                 100 %                                            + 20             2,310,000,536                       536             0.0000232

                                 100 %                                             + 30            2,310,000,162                       162             0.0000070

                                 100 %                                            + 40             2,310,000,057                        57             0.0000025

                                 100 %                                + 50     2,310,000,449       449                                                 0.0000194
                                                       Table 7-8. Frequency Stability Data (Band 30)

Note:

Based on the results of the frequency stability test at the center channel the frequency deviation results measured
are very small. As such it is determined that the channels at the band edge would remain in-band when the
maximum measured frequency deviation noted during the frequency stability tests is applied. Therefore the device
is determined to remain operating in band over the temperature and voltage range as tested.




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Band 30 Frequency Stability Measurements


                                                                               Frequency Stability

                                                  3.5




                                                  2.5




                                                  1.5
                                Deviation (ppm)




                                                  0.5




                                                  -0.5




                                                  -1.5




                                                  -2.5




                                                  -3.5




                                                                                        Temperature (°C)



                                                            Figure 7-6. Frequency Stability Graph (Band 30)




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All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and
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rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.


8.0          CONCLUSION

The data collected relate only to the item(s) tested and show that the Netcomm Outdoor LTE Router FCC ID:
XIA-IFWA661 complies with all the requirements of Part 27 of the FCC Rules for LTE operation only.




                                                                                 MEASUREMENT REPORT                                                                Approved by:
 FCC ID: XIA-IFWA661
                                                                                    (CERTIFICATION)                                                                Quality Manager
 Test Report S/N:                      Test Dates:                     EUT Type:
                                                                                                                                                                   Page 48 of 48
 1M1907090120-1-R2.XIA                 7/31-10/2/2019                  Outdoor LTE Router
© 2019 PCTEST Engineering Laboratory, Inc.                                                                                                                                      V 9.0 02/01/2019
All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional
rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.



Document Created: 2019-11-08 04:20:04
Document Modified: 2019-11-08 04:20:04

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