Test report - Part 4

FCC ID: T8GMGU

Test Report

Download: PDF
FCCID_3811228

DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España




            Section 15.247 Subclause (d) / RSS-247 5.5. Band-edge emissions compliance (Transmitter)


SPECIFICATION
In any 100 kHz bandwidth outside the frequency band in which the digitally modulated intentional radiator is
operating, the radio frequency power that is produced by the intentional radiator shall be at least 20 dB below that
in the 100 kHz bandwidth within the band that contains the highest level of the desired power. If the transmitter
complies with the conducted power limits based on the use of RMS averaging over a time interval, the attenuation
required shall be 30 dB instead of 20 dB.


RESULTS:
Note: Radiated measurements were used to show compliance with the limits in the restricted bands 2.31-2.39 GHz
and 2.4835-2.5 GHz.


LOW FREQUENCY SECTION 2412 MHz (b/g/n20) and LOW FREQUENCY SECTION 2422 MHz (n40)
CONDUCTED.

Mode B
See next plot.




                          Measurement uncertainty (dB)                         < ±2.03


Verdict: PASS



Report No: (NIE)
55472RRF.003                                                 Page 125 of 153                              2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España



Mode G
See next plot.




                          Measurement uncertainty (dB)                         < ±2.03


Verdict: PASS




Report No: (NIE)
55472RRF.003                                                 Page 126 of 153             2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España



Mode N20
See next plot.




                          Measurement uncertainty (dB)                         < ±2.03




Verdict: PASS




Report No: (NIE)
55472RRF.003                                                 Page 127 of 153             2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España




Mode N40
See next plot.




                          Measurement uncertainty (dB)                         < ±2.03




Verdict: PASS




Report No: (NIE)
55472RRF.003                                                 Page 128 of 153             2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España




                           Section 15.247 Subclause (e) / RSS-247 5.2. (2) Power spectral density


SPECIFICATION
For digitally modulated systems, the power spectral density conducted from the intentional radiator to the antenna
shall not be greater than 8 dBm in any 3 kHz band during any time interval of continuous transmission.

RESULTS

The maximum power spectral density level in the fundamental emission was measured using the method
AVGPSD-1 (AVG PSD) according to point 10.3. of Guidance for Performing Compliance Measurements on
Digital Transmission Systems (DTS) Operating Under §15.247 558074 D01 DTS Meas Guidance v04 dated
05/04/2017.
Power spectral density (see next plots).
Mode B
                                                    Lowest frequency            Middle frequency   Highest frequency
                                                         2412 MHz                      2437 MHz       2462 MHz
    Power spectral density (dBm)                             -2.18                       -1.61           -2.19
   Measurement uncertainty (dB)                                                         <±1.20


Mode G
                                                    Lowest frequency            Middle frequency   Highest frequency
                                                         2412 MHz                      2437 MHz       2462 MHz
    Power spectral density (dBm)                             -0.86                       1.33            -0.72
   Measurement uncertainty (dB)                                                         <±1.20


Mode N20
                                                    Lowest frequency            Middle frequency   Highest frequency
                                                         2412 MHz                      2437 MHz       2462 MHz
    Power spectral density (dBm)                             -3.88                       -3.32           -3.34
   Measurement uncertainty (dB)                                                         <±1.20


Mode N40
                                                    Lowest frequency            Middle frequency   Highest frequency
                                                         2422 MHz                      2437 MHz       2452 MHz
    Power spectral density (dBm)                             -5.72                       -5.12           -5.44
   Measurement uncertainty (dB)                                                         <±1.20
Verdict: PASS

Report No: (NIE)
55472RRF.003                                                         Page 129 of 153                                   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España



Power spectral density.
Mode B
Lowest Channel




Middle Channel




Report No: (NIE)
55472RRF.003                                                 Page 130 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España



Highest channel




Mode G
Lowest Channel




Report No: (NIE)
55472RRF.003                                                 Page 131 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España



Middle Channel




Highest channel




Report No: (NIE)
55472RRF.003                                                 Page 132 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España


Mode N20
Lowest Channel




Middle Channel




Report No: (NIE)
55472RRF.003                                                 Page 133 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España


Highest channel




Mode N40
Lowest Channel




Report No: (NIE)
55472RRF.003                                                 Page 134 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España



Middle Channel




Highest channel




Report No: (NIE)
55472RRF.003                                                 Page 135 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España




              Section 15.247 Subclause (d) / RSS-247 5.5. Emission limitations radiated (Transmitter)


SPECIFICATION

Radiated emissions which fall in the restricted bands, as defined in §15.205(a), must also comply with the radiated
emission limits specified in §15.209(a) (see §15.205(c) / RSS-Gen):

                Frequency Range                 Field strength (µV/m)                Field strength   Measurement
                     (MHz)                                                            (dBµV/m)        distance (m)
                    0.009-0.490                       2400/F(kHz)                          -              300
                    0.490-1.705                      24000/F(kHz)                          -              30
                    1.705 - 30.0                             30                            -              30
                        30 - 88                              100                          40               3
                       88 - 216                              150                         43.5              3
                      216 - 960                              200                          46               3
                    960 - 25000                              500                          54               3

The emission limits shown in the above table are based on measurements employing CISPR quasi-peak detector
except for the frequency bands 9-90 kHz, 110-490 kHz and above 1000 MHz. Radiated emission limits in these
three bands are based on measurements employing an average detector.
For average radiated emission measurements above 1000 MHz, there is also a limit corresponding to 20 dB above
the indicated values in the table is specified when measuring with peak detector function.


RESULTS:
The situation and orientation was varied to find the maximum radiated emission. It was also rotated 360º and the
antenna height was varied from 1 to 4 meters to find the maximum radiated emission.
Measurements were made in both horizontal and vertical planes of polarization.
All tests were performed in a semi-anechoic chamber at a distance of 3 m for the frequency range 30 MHz-1000
MHz and at distance of 1m for the frequency range 1 GHz-25 GHz.
The test was performed with the equipment transmitting first with only the WiFi 2.4GHz (WLAN1 CORE1) and
repeated with the 2.4 GHz BT-EDR (WLAN 0), and WiFi 5 GHz (WLAN0 CORE0) radios transmitting
simultaneously to check the impact of the co-location of the other radio interfaces. The results and plots below
show the worst results obtained.
The field strength is calculated by adding correction factor to the measured level from the spectrum analyzer. This
correction factor includes antenna factor, cable loss and pre-amplifiers gain.




Report No: (NIE)
55472RRF.003                                                       Page 136 of 153                                   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España


Frequency range 30 MHz-1000 MHz.

The spurious signals detected do not depend on either the operating channel or the modulation mode.



             Spurious frequency                Polarization        Detector     Emission Level  Measurement
                   (GHz)                                                          (dBµV/m)     Uncertainty (dB)
                     748.042                         PV          Quasi-peak         29.20           ± 3.88




Frequency range 1 GHz-25 GHz.
The results in the next tables show the maximum measured levels in the 1-25 GHz range including the restricted
bands 2.31-2.39 GHz and 2.4835-2.5 GHz (see next plots).
The field strength at the band edges was evaluated for each mode for the channel under test.
Spurious signals with peak levels above the average limit (54 dBµV/m at 3 m) are measured with AVG detector for
checking compliance with the average limit.

For spurious emissions (except field strength at the band edges that was performed for all possibilities of different
bandwidth) for OFDM modes 802.11g, 802.11n20 and 802.11n40 a preliminary scan (highest output power and
highest output power spectral density) was performed to determine the worst case. The next tables and plots show
the results for the worst case to DSSS modulation (802.11b) and OFDM modulation (802.11g).




Report No: (NIE)
55472RRF.003                                                  Page 137 of 153                                     2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España


1. WiFi 2.4GHz 802.11 b mode.

1.1. CHANNEL 1: LOWEST (2412 MHz). Out-of-band spurious emissions in the 1-25 GHz range and inside
restricted band 2.31-2.39 GHz.

             Spurious frequency                Polarization        Detector     Emission Level  Measurement
                   (GHz)                                                          (dBµV/m)     Uncertainty (dB)
                     2.38996                         PH              Peak           53.18           ± 4.87

                      4.0002                         PV              Peak           41.17           ± 4.87

                     7.23715                         PH              Peak           43.38           ± 4.87

1.2. CHANNEL 6: MIDDLE (2437 MHz). Out-of-band spurious emissions in the 1-25 GHz.

             Spurious frequency                Polarization        Detector     Emission Level  Measurement
                   (GHz)                                                          (dBµV/m)     Uncertainty (dB)
                     4.00025                         PV              Peak           40.95           ± 4.87

                     7.31225                         PH              Peak           45.69           ± 4.87


1.3. CHANNEL 11: HIGHEST (2462 MHz). Out-of-band spurious emissions in the 1-25 GHz range and inside
restricted band 2.4835-2.5 GHz.

             Spurious frequency                Polarization        Detector     Emission Level  Measurement
                   (GHz)                                                          (dBµV/m)     Uncertainty (dB)
                     2.49766                         PH              Peak           51.17           ± 4.87

                     4.00025                         PV              Peak           41.90           ± 4.87

                     7.38525                         PH              Peak           43.24           ± 4.87

Verdict: PASS

2. WiFi 2.4GHz 802.11 g mode (worst case OFDM)

2.1. CHANNEL 1: LOWEST (2412 MHz). Out-of-band spurious emissions in the 1-25 GHz range and inside
restricted band 2.31-2.39 GHz.

             Spurious frequency                Polarization        Detector     Emission Level  Measurement
                   (GHz)                                                          (dBµV/m)     Uncertainty (dB)
                                                                     Peak           65.06           ± 4.87
                     2.38941                         PH
                                                                   Average          50.02           ± 4.87

                     4.00025                         PV              Peak           40.93           ± 4.87



Report No: (NIE)
55472RRF.003                                                  Page 138 of 153                                     2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España


2.2. CHANNEL 6: MIDDLE (2437 MHz). Out-of-band spurious emissions in the 1-25 GHz.

             Spurious frequency                Polarization        Detector     Emission Level  Measurement
                   (GHz)                                                          (dBµV/m)     Uncertainty (dB)
                     4.00025                         PV              Peak           40.77           ± 4.87

                     7.31425                         PH              Peak           44.43           ± 4.87

2.3. CHANNEL 11: HIGHEST (2462 MHz). Out-of-band spurious emissions in the 1-25 GHz range and inside
restricted band 2.4835-2.5 GHz.

             Spurious frequency                Polarization        Detector     Emission Level  Measurement
                   (GHz)                                                          (dBµV/m)     Uncertainty (dB)
                                                                     Peak           62.07           ± 4.87
                     2.48379                         PH
                                                                   Average          48.37           ± 4.87

                     4.00025                         PV              Peak           40.49           ± 4.87

Verdict: PASS



3. WiFi 2.4GHz 802.11 n40 mode

3.1. CHANNEL 3: LOWEST (2422 MHz). Spurious emissions in restricted band 2.31-2.39 GHz.

             Spurious frequency                Polarization        Detector     Emission Level  Measurement
                   (GHz)                                                          (dBµV/m)     Uncertainty (dB)
                                                                                                    ± 4.87
                     2.36461                         PH              Peak           53.82


                                                                     Peak           63.41           ± 4.87
                     2.38384                         PH
                                                                   Average          52.42           ± 4.87




Report No: (NIE)
55472RRF.003                                                  Page 139 of 153                                     2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España


3.2. CHANNEL 9: HIGHEST (2452 MHz). Spurious emissions in restricted band 2.4835-2.5 GHz.

             Spurious frequency                Polarization        Detector     Emission Level  Measurement
                   (GHz)                                                          (dBµV/m)     Uncertainty (dB)
                                                                     Peak           63.18           ± 4.87
                     2.48584                         PV
                                                                   Average          50.32           ± 4.87

                                                                     Peak           67.33           ± 4.87
                     2.49163                         PH
                                                                   Average          51.07           ± 4.87

                                                                     Peak           58.51           ± 4.87
                     2.49460                         PH
                                                                   Average          50.24           ± 4.87



Verdict: PASS




Report No: (NIE)
55472RRF.003                                                  Page 140 of 153                                     2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España


FREQUENCY RANGE 30 MHz-1000 MHz.




(This plot is valid for all three channels and modulation modes).




Report No: (NIE)
55472RRF.003                                                 Page 141 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España



FREQUENCY RANGE 1 GHz to 3 GHz.

1. WiFi 2.4GHz 802.11 b mode

CHANNEL 1 (2412 MHz).




Note: The peak above the limit is the carrier frequency.

CHANNEL 6 (2437 MHz).




Note: The peak above the limit is the carrier frequency.




Report No: (NIE)
55472RRF.003                                                 Page 142 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España


CHANNEL 11 (2462 MHz).




Note: The peak above the limit is the carrier frequency.


2. WiFi 2.4GHz 802.11 g mode (Worst case OFDM)

CHANNEL 1 (2412 MHz).




Note: The peak above the limit is the carrier frequency.




Report No: (NIE)
55472RRF.003                                                 Page 143 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España




CHANNEL 6 (2437 MHz).




Note: The peak above the limit is the carrier frequency.

CHANNEL 11 (2462 MHz).




Note: The peak above the limit is the carrier frequency.




Report No: (NIE)
55472RRF.003                                                 Page 144 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España


FREQUENCY RANGE 3 GHz to 18 GHz.

1. WiFi 2.4GHz 802.11 b mode

CHANNEL 1 (2412 MHz).




CHANNEL 6 (2437 MHz).




Report No: (NIE)
55472RRF.003                                                 Page 145 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España


CHANNEL 11 (2462 MHz).




2. WiFi 2.4GHz 802.11 g mode (Worst case OFDM)

CHANNEL 1 (2412 MHz).




Report No: (NIE)
55472RRF.003                                                 Page 146 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España


CHANNEL 6 (2437 MHz).




CHANNEL 11 (2462 MHz).




Report No: (NIE)
55472RRF.003                                                 Page 147 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España


FREQUENCY RANGE 18 GHz to 26 GHz.

1. WiFi 2.4GHz 802.11 b mode

No spurious signals were found in all channels tested.




Report No: (NIE)
55472RRF.003                                                 Page 148 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España




2. WiFi 2.4GHz 802.11 g mode (Worst case)

No spurious signals were found in all channels tested.




Report No: (NIE)
55472RRF.003                                                 Page 149 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España



FREQUENCY RANGE 2.31 GHz to 2.39 GHz. (RESTRICTED BAND)

1. WiFi 2.4GHz 802.11 b mode

CHANNEL 1 (2412 MHz).




2. WiFi 2.4GHz 802.11 g mode

CHANNEL 1 (2412 MHz).




Report No: (NIE)
55472RRF.003                                                 Page 150 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España



3. WiFi 2.4GHz 802.11 n40 mode

CHANNEL 3 (2422 MHz).




Report No: (NIE)
55472RRF.003                                                 Page 151 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España



FREQUENCY RANGE 2.4835 GHz to 2.5 GHz. (RESTRICTED BAND)

1. WiFi 2.4GHz 802.11 b mode

CHANNEL 11 (2462 MHz).




2. WiFi 2.4GHz 802.11 g mode

CHANNEL 11 (2462 MHz).




Report No: (NIE)
55472RRF.003                                                 Page 152 of 153   2018-02-27


DEKRA Testing and Certification, S.A.U.
Parque Tecnológico de Andalucía,
c/ Severo Ochoa nº 2 · 29590 Campanillas · Málaga · España




3. WiFi 2.4GHz 802.11 n40 mode

CHANNEL 9 (2452 MHz).




Report No: (NIE)
55472RRF.003                                                 Page 153 of 153   2018-02-27



Document Created: 2018-04-10 16:56:56
Document Modified: 2018-04-10 16:56:56

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