Test report_DFS_Rev 1

FCC ID: 2AJVQ-ZDGF7668AU

Test Report

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                                                                    Test report no. 171001524SHA-006
                                                                                          Page 1 of 19


                                   FCC DFS TEST REPORT
                                   No. 171001524SHA-006
                       Applicant    :   Qingdao Intelligent&Precise Electronics Co., Ltd
                                        No.218, Qianwangang Road, Qingdao Economic&Technological
                                        Development Zone, Shandong, China.

                   Manufacturer     :   Qingdao Intelligent&Precise Electronics Co., Ltd
                                        No.218, Qianwangang Road, Qingdao Economic&Technological
                                        Development Zone, Shandong, China.

                  Product Name      :   Wireless Module

                    Type/Model      :   ZDGFMT7668AU

                    TEST RESULT     :   PASS


SUMMARY
The equipment complies with the requirements according to the following standard(s):

47CFR Part 15 (2016): Radio Frequency Devices

RSS-247 Issue 2 (February 2017): Digital Transmission Systems (DTSs), Frequency Hopping Systems
(FHSs) and Licence-Exempt Local Area Network (LE-LAN) Devices

KDB 905462 D02 UNII DFS Compliance Procedures New Rules v02: Compliance Measurement
Procedures for Unlicensed-National Information Infrastructure Devices Operating In The 5250-5350
MHz and 5470-5725 MHz Bands Incorporating Dynamic Frequency Selection

KDB 905462 D03 NII Clients Without Radar Detection New Rules v01r02: U-NII CLIENT DEVICES
WITHOUT RADAR DETECTION CAPABILITY


Date of issue: December 19, 2017


Prepared by:                                                 Reviewed by:




Nemo Li (Project engineer)                                   Daniel Zhao (Reviewer)




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                                                                                                                      Test report no. 171001524SHA-006
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                                                                            Content
SUMMARY ............................................................................................................................................................ 1
1       GENERAL INFORMATION ............................................................................................................................. 3
    1.1     DESCRIPTION OF EQUIPMENT UNDER TEST (EUT) ..................................................................................................... 3
    1.2     RF TECHNICAL INFORMATION ................................................................................................................................ 4
    1.3     DESCRIPTION OF TEST FACILITY .............................................................................................................................. 4
2       TEST SPECIFICATIONS .................................................................................................................................. 5
    2.1     STANDARDS OR SPECIFICATION............................................................................................................................... 5
    2.2     MODE OF OPERATION DURING THE TEST / TEST PERIPHERALS USED ............................................................................... 5
    2.3     INSTRUMENT LIST ................................................................................................................................................ 6
    2.4     TEST SUMMARY .................................................................................................................................................. 7
3       DFS DETECTION THRESHOLDS AND RADAR TEST WAVEFORMS ................................................................... 8
    3.1     INTERFERENCE THRESHOLD VALUES......................................................................................................................... 8
    3.2     DFS RESPONSE REQUIREMENT VALUES .................................................................................................................... 8
    3.3     RADAR TEST WAVEFORMS MINIMUM STEP ............................................................................................................. 9
    3.4     SHORT PULSE RADAR TEST WAVEFORMS ................................................................................................................. 9
    3.5     LONG PULSE RADAR TEST WAVEFORM .................................................................................................................. 11
    3.6     FREQUENCY HOPPING RADAR TEST WAVEFORM ..................................................................................................... 12
    3.7     CALIBRATION SETUP .......................................................................................................................................... 13
    3.8     RADAR WAVEFORM CALIBRATION PROCEDURE ....................................................................................................... 14
    3.9     RADAR WAVEFORM CALIBRATION RESULT ............................................................................................................. 15
4   IN-SERVICE MONITORING FOR CHANNEL MOVE TIME, CHANNEL CLOSING TRANSMISSION TIME AND NON-
OCCUPANCY PERIOD .......................................................................................................................................... 17
    4.1     CHANNEL MOVE TIME, CHANNEL CLOSING TRANSMISSION TIME ............................................................................... 18
    4.2     NON-OCCUPANCY PERIOD .................................................................................................................................. 19




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                                                                      Test report no. 171001524SHA-006
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1   GENERAL INFORMATION
1.1 Description of Equipment Under Test (EUT)

Operation Frequency Band      :   5250 ~ 5350MHz
                                  5470 ~ 5725MHz
       Type of Modulation     :   OFDM(BPSK, QPSK, 16QAM, 64QAM, 256QAM)
            EUT Modes of      :   802.11a, 802.11n/ac(HT20),
              Modulation          802.11n/ac(HT40), 802.11ac(VHT80)
          Channel Number      :   For 5250 ~ 5350MHz Band: Channel 52 - 64
                                  For 5470 ~ 5725MHz Band: Channel 100 - 140
                                  (No transmission among 5600-5650MHz for IC)
        Description of EUT    :   EUT is a Wireless Module with WiFi and Bluetooth function, and has
                                  only one model.
                  Antenna     :   PIFA antenna
                                  Antenna 0: 3.17dBi
                                  Antenna 1: 3.43dBi
                    Rating    :   DC 5V
     Sample received date     :   October 30, 2017
               Date of test   :   October 30, 2017 ~ December 18, 2017




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IC: 22470-ZDGF7668AU
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                                                                         Test report no. 171001524SHA-006
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1.2 RF Technical Information


    Specification Items                                       Description

         Protocol             802.11a/n20/ac20/n40/ac40/ac80

       Modulation             BPSK, QPSK, 16QAM, 64QAM, 256QAM
                              5250-5350MHz; 5470-5725MHz
   Channel Frequency
                              (No transmission among 5600-5650MHz for IC)
   Channel Bandwidth          20/40/80MHz
      Weather Band            Yes for FCC
    (5600~5650MHz)            No for IC
     Max. EIRP Power               < 200mW         ≥ 200mW

                                   Master
     Operating Mode                Client without Radar Detection
                                   Client with Radar Detection
 Manufacturer Statement       Manufacturer statement confirming that information regarding the
                              parameters of the detected Radar Waveforms are not available to the end
                              user.


1.3 Description of Test Facility

                      Name    :     Intertek Testing Services Shanghai

                    Address   :     Building 86, No. 1198 Qinzhou Road(North), Shanghai 200233, P.R.
                                    China
                 Telephone    :     86 21 61278200
                    Telefax   :     86 21 54262353




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IC: 22470-ZDGF7668AU
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                                                                              Test report no. 171001524SHA-006
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2    TEST SPECIFICATIONS
2.1 Standards or specification

47CFR Part 15 (2016): Radio Frequency Devices

RSS-247 Issue 2 (February 2017): Digital Transmission Systems (DTSs), Frequency Hopping Systems
(FHSs) and Licence-Exempt Local Area Network (LE-LAN) Devices

KDB 905462 D02 UNII DFS Compliance Procedures New Rules v02: Compliance Measurement
Procedures for Unlicensed-National Information Infrastructure Devices Operating In The 5250-5350
MHz and 5470-5725 MHz Bands Incorporating Dynamic Frequency Selection

KDB 905462 D03 NII Clients Without Radar Detection New Rules v01r02: U-NII CLIENT DEVICES
WITHOUT RADAR DETECTION CAPABILITY


2.2 Mode of operation during the test / Test peripherals used

Stream the channel loading test file from the Master Device to the Client Device on the test Channel for
the entire period of the test if necessary.

    Item No          Description           Manufacturer             Model No.                   Note
      1           Laptop computer                HP                   4230s                        -
                 Digital Home ONU
      2                                   Alcatel‐Lucent            A-240Z-A           FCC ID: 2ADZRA240ZA
                      (Master)



Frequency Band                             Tx/Rx   Beamforming            CDD            Directional gain
                           Mode
    (MHz)                                 Function   function           function               (dBi)
                                                                                       3.17 for antenna 0
                          802.11a       1TX/1RX           NO              NO
                                                                                       3.43 for antenna 1
5250~5350MHz
                     802.11n/ac(HT20) 2TX/2RX             NO              NO                   3.30
                                                                                                 -
5470~5725MHz
                     802.11n/ac(HT40) 2TX/2RX             NO              NO                   3.30
                                                                                                 -
                      802.11ac(VHT80) 2TX/2RX             NO              NO                   3.30
                                                                                                 -
Note: For 802.11a, it only supports 1TX, the directional gain is equal to antenna gain.          -
       For other modes, it can support 2TX, all the two transmit signals are completely uncorrelated
with each other. So the directional gain = 10 log ((10G1/10 + 10G2/10 + … +10Gn/10) / NANT = 10 log ((103.17/10 +
103.43/10) / 2 = 3.30dBi




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                                                                 Test report no. 171001524SHA-006
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2.3 Instrument list

Conducted Emission
Used          Equipment        Manufacturer         Type          Internal no.        Due date
  ☐         Test Receiver         R&S              ESCS 30          EC 2107          2018-09-12
  ☐             A.M.N.            R&S              ESH2-Z5          EC 3119          2018-12-01
  ☐             A.M.N.            R&S              ENV 216          EC 3393          2018-07-30
Radiated Emission
Used          Equipment        Manufacturer         Type          Internal no.        Due date
  ☐         Test Receiver          R&S             ESIB 26          EC 3045          2018-09-12
  ☐         Bilog Antenna         TESEQ          CBL 6112D          EC 4206          2018-05-30
  ☒         Horn antenna           R&S             HF 906           EC 3049          2018-09-23
  ☒         Horn antenna           ETS              3117           EC 4792-1         2018-08-24
  ☐         Horn antenna          TOYO           HAP18-26W         EC 4792-3         2020-07-09
  ☐         Pre-amplifier          R&S           Pre-amp 18         EC5881           2018-06-19
  ☐      Active loop antenna   Schwarzbeck       FMZB1519           EC 5345          2018-01-25
RF test
Used          Equipment        Manufacturer          Type         Internal no.        Due date
  ☒      PXA Signal Analyzer    Keysight           N9030A           EC 5338          2018-09-10
           Power sensor/                           N1911A/
  ☐                              Agilent                            EC4318           2018-05-12
            Power meter                            N1921A
  ☐         Test Receiver         R&S               ESCI 7         EC 4501           2018-09-12
  ☒           Vector SG          Agilent           N5182B          EC5175            2018-03-02
Tet Site
Used          Equipment        Manufacturer         Type          Internal no.        Due date
  ☐        Shielded room        Zhongyu               -             EC 2838          2018-01-08
                                Albatross
 ☒    Semi-anechoic chamber                           -            EC 3048           2018-03-09
                                 project

        Test Software               Manufacturer                          Function

        Pulse Building                 Agilent                Radar Signal Generation Software

          DFS Tool                     Agilent                       DFS Test Software




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IC: 22470-ZDGF7668AU
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2.4 Test Summary

This report applies to tested sample only. The test results have been compared directly with the
limits, and the measurement uncertainty is recorded. This report shall not be reproduced in part
without written approval of Intertek Testing Services Shanghai.


             TEST ITEM                        FCC CLAUSE                 IC CLAUSE            TEST RESULT

Initial Channel Availability Check
                                              15.407(h)(2)           RSS-247 clause 6.3            NA
Time

Radar Burst at the Beginning of the
Channel Availability Check & End of           15.407(h)(2)           RSS-247 clause 6.3            NA
the Channel Availability Check Time
Time
Channel  Move Time, Channel
                                              15.407(h)(2)           RSS-247 clause 6.3           Pass
Closing Time

Non-occupancy period                          15.407(h)(2)           RSS-247 clause 6.3           Pass

UNII Detection Bandwidth                      15.407(h)(2)           RSS-247 clause 6.3            NA
Measurement

Statistical Performance Check                 15.407(h)(2)           RSS-247 clause 6.3            NA


Notes: 1: NA =Not Applicable
       2: This report is for the exclusive use of Intertek's Client and is provided pursuant to the
agreement between Intertek and its Client. Intertek's responsibility and liability are limited to the terms
and conditions of the agreement. Intertek assumes no liability to any party, other than to the Client in
accordance with the agreement, for any loss, expense or damage occasioned by the use of this report.
Only the Client is authorized to permit copying or distribution of this report and then only in its entirety.
Any use of the Intertek name or one of its marks for the sale or advertisement of the tested material,
product or service must first be approved in writing by Intertek. The observations and test results in this
report are relevant only to the sample tested. This report by itself does not imply that the material,
product, or service is or has ever been under an Intertek certification program.




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IC: 22470-ZDGF7668AU
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                                                                          Test report no. 171001524SHA-006
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3     DFS Detection Thresholds and Radar Test Waveforms

3.1 Interference Threshold values


                Maximum Transmit Power                                       Value (see note)

                         ≥ 200 mW                                                -64 dBm

                         < 200 mW                                                -62 dBm
    Note 1: This is the level at the input of the receiver assuming a 0 dBi receive antenna.
    Note 2: Throughout these test procedures an additional 1 dB has been added to the amplitude of the
    test transmission waveforms to account for variations in measurement equipment. This will ensure that
    the test signal is at or above the detection threshold level to trigger a DFS response.


3.2 DFS Response requirement values


                     Parameter                                                 Value


               Non-occupancy period                                   Minimum 30 minutes

          Channel Availability Check Time                                   60 seconds

                Channel Move Time                                    10 seconds See Note 1.
                                                   200 milliseconds + an aggregate of 60 milliseconds over
        Channel Closing Transmission Time
                                                   remaining 10 second period. See Notes 1 and 2.
            U-NII Detection Bandwidth              Minimum 80% of the 99% power bandwidth See Note 3.
    Note 1: Channel Move Time and the Channel Closing Transmission Time should be performed with Radar
    Type 0. The measurement timing begins at the end of the Radar Type 0 burst.
    Note 2: The Channel Closing Transmission Time is comprised of 200 milliseconds starting at the beginning of
    the Channel Move Time plus any additional intermittent control signals required to facilitate a Channel move
    (an aggregate of 60 milliseconds) during the remainder of the 10 second period. The aggregate duration of
    control signals will not count quiet periods in between transmissions.
    Note 3: During the U-NII Detection Bandwidth detection test, radar type 0 should be used. For each frequency
    step the minimum percentage of detection is 90 percent. Measurements are performed with no data traffic.




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IC: 22470-ZDGF7668AU
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                                                                        Test report no. 171001524SHA-006
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3.3 Radar Test Waveforms Minimum Step

Step intervals of 0.1 microsecond for Pulse Width, 1 microsecond for PRI, 1 MHz for chirp width and 1
for the number of pulses will be utilized for the random determination of specific test waveforms.


3.4 Short Pulse Radar Test Waveforms

                                                                              Minimum
         Pulse                                                                                Minimum
Radar                        PRI                                            Percentage of
         Width                                      Number of Pulses                          Number of
Type                         (μs)                                            Successful
           (μs)                                                                                 Trials
                                                                              Detection
  0         1               1428                          18                 See Note 1       See Note 1
                     15 unique PRI values
                   randomly selected from
  1a
                   the list of 23 PRI values
                           in Note 2

                    15 unique PRI values
                                                      Roundup
            1         randomly selected                                          60%               30
                                               {(1/360)*(19*106/PRI)}
                   within the range of 518-
                       3066μsec, with a
  1b
                   minimum increment of
                    1 μsec, excluding PRI
                   values selected in radar
                            type 1a

  2        1-5            150-230                        23-29                   60%              30
  3        6-10           200-500                        16-18                   60%              30
  4       11-20           200-500                        12-16                   60%              30
                      Aggregate (Radar Types 1-4)                                80%              120

Note 1: Short Pulse Radar Type 0 should be used for the detection bandwidth test, channel move time,
and channel closing time tests.




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Note 2: Pulse Repetition Intervals Values for Radar Type 1a
                                           Pulse Repetition Frequency        Pulse Repetition Interval
  Pulse Repetition Frequency No
                                               (Pulses Per Second)                     (us)
                  1                                  1930.5                            518
                  2                                  1858.7                            538
                  3                                  1792.1                            558
                  4                                  1730.1                            578
                  5                                  1672.2                            598
                  6                                  1618.1                            618
                  7                                  1567.4                            638
                  8                                  1519.8                            658
                  9                                  1474.9                            678
                 10                                  1432.7                            698
                 11                                  1392.8                            718
                 12                                   1355                             738
                 13                                  1319.3                            758
                 14                                  1285.3                            778
                 15                                  1253.1                            798
                 16                                  1222.5                            818
                 17                                  1193.3                            838
                 18                                  1165.6                            858
                 19                                   1139                             878
                 20                                  1113.6                            898
                 21                                  1089.3                            918
                 22                                  1066.1                            938
                 23                                   326.2                           3066

A minimum of 30 unique waveforms are required for each of the Short Pulse Radar Types 2 through 4. If
more than 30 waveforms are used for Short Pulse Radar Types 2 through 4, then each additional
waveform must also be unique and not repeated from the previous waveforms. If more than 30
waveforms are used for Short Pulse Radar Type 1, then each additional waveform is generated with
Test B and must also be unique and not repeated from the previous waveforms in Tests A or B.

For example if in Short Pulse Radar Type 1 Test B a PRI of 3066us is selected, the number of pulses
would be




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3.5 Long Pulse Radar Test Waveform

                                                                             Minimum
                                         Chirp               Number                         Minimum
            Pulse Width        PRI                  PRI                    Percentage of
 Radar Type                             Width                of Pulses                      Number of
                (μs)           (μs)                (μsec)                   Successful
                                        (MHz)                per Burst                        Trials
                                                                             Detection
                                         1000-
      5          50-100       5-20                   1-3       8-20             80%              30
                                         2000


The parameters for this waveform are randomly chosen. Thirty unique waveforms are required for the
Long Pulse Radar Type waveforms. If more than 30 waveforms are used for the Long Pulse Radar Type
waveforms, then each additional waveform must also be unique and not repeated from the previous
waveforms.

Each waveform is defined as follows:

1) The transmission period for the Long Pulse Radar test signal is 12 seconds.

2) There are a total of 8 to 20 Bursts in the 12 second period, with the number of Bursts being
   randomly chosen. This number is Burst_Count.

3) Each Burst consists of 1 to 3 pulses, with the number of pulses being randomly chosen. Each Burst
   within the 12 second sequence may have a different number of pulses.

4) The pulse width is between 50 and 100 microseconds, with the pulse width being randomly chosen.
   Each pulse within a Burst will have the same pulse width. Pulses in different Bursts may have
   different pulse widths.

5) Each pulse has a linear frequency modulated chirp between 5 and 20 MHz, with the chirp width
   being randomly chosen. Each pulse within a Burst will have the same chirp width. Pulses in different
   Bursts may have different chirp widths. The chirp is centered on the pulse. For example, with a
   radar frequency of 5300 MHz and a 20 MHz chirped signal, the chirp starts at 5290 MHz and ends at
   5310 MHz.

6) If more than one pulse is present in a Burst, the time between the pulses will be between 1000 and
   2000 microseconds, with the time being randomly chosen. If three pulses are present in a Burst, the
   random time interval between the first and second pulses is chosen independently of the random
   time interval between the second and third pulses.

7) The 12 second transmission period is divided into even intervals. The number of intervals is equal to
    Burst_Count. Each interval is of length (12,000,000 / Burst_Count) microseconds. Each interval
    contains one Burst. The start time for the Burst, relative to the beginning of the interval, is between
    1 and [(12,000,000 / Burst_Count) – (Total Burst Length) + (One Random PRI Interval)] microseconds,
    with the start time being randomly chosen. The step interval for the start time is 1 microsecond.
    The start time for each Burst is chosen randomly.




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A representative example of a Long Pulse Radar Type waveform:

1) The total test waveform length is 12 seconds.
2) Eight (8) Bursts are randomly generated for the Burst_Count.
3) Burst 1 has 2 randomly generated pulses.
4) The pulse width (for both pulses) is randomly selected to be 75 microseconds.
5) The PRI is randomly selected to be at 1213 microseconds.
6) Bursts 2 through 8 are generated using steps 3 – 5.
7) Each Burst is contained in even intervals of 1,500,000 microseconds. The starting location for Pulse 1,
Burst 1 is randomly generated (1 to 1,500,000 minus the total Burst 1 length + 1 random PRI interval) at
the 325,001 microsecond step. Bursts 2 through 8 randomly fall in successive 1,500,000 microsecond
intervals (i.e. Burst 2 falls in the 1,500,001 – 3,000,000 microsecond range).


3.6 Frequency Hopping Radar Test Waveform

                                                    Hopping
           Pulse            Pulses    Hopping                         Minimum
 Radar               PRI                           Sequence                                Minimum
           Width             per        Rate                        Percentage of
 Type                (μs)                            Length                              Number of Trials
            (μs)             Hop       (kHz)                     Successful Detection
                                                     (msec)

   6          1      333       9       0.333          300                70%                    30


For the Frequency Hopping Radar Type, the same Burst parameters are used for each waveform. The
hopping sequence is different for each waveform and a 100-length segment is selected from the
hopping sequence defined by the following algorithm:

The first frequency in a hopping sequence is selected randomly from the group of 475 integer
frequencies from 5250 – 5724MHz. Next, the frequency that was just chosen is removed from the group
and a frequency is randomly selected from the remaining 474 frequencies in the group. This process
continues until all 475 frequencies are chosen for the set. For selection of a random frequency, the
frequencies remaining within the group are always treated as equally likely.

Note: If a segment does not contain at least 1 frequency within the U-NII Detection Bandwidth of the
UUT, then that segment is not used.




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3.7 Calibration Setup

  Radiated Method




                                             Monitor Antenna




               Radar Antenna




                           Radar Generator                          Spectrum Analyzer




  Conducted Method


    Spectrum                                                          50Ω Terminator
    Analyzer

                               Combiner      Combiner

  50Ω Terminator                                                     Radar Generator




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                                                                    Test report no. 171001524SHA-006
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3.8 Radar Waveform Calibration Procedure

The Interference Radar Detection Threshold Level is -64dBm or -62dBm + 0 [dBi] + 1 dB that had been
taken into account the output power range and antenna gain. The above equipment setup was used to
calibrate the conducted Radar Waveform. A vector signal generator was utilized to establish the test
signal level for each radar type. During this process there were replace 50ohm terminal form Master
and Client device and no transmissions by either the Master or Client Device. The spectrum analyzer
was switched to the zero span (Time Domain) at the frequency of the Radar Waveform generator. Peak
detection was used. The spectrum analyzer resolution bandwidth (RBW) and video bandwidth (VBW)
were set to at least 3MHz. The vector signal generator amplitude was set so that the power level
measured at the spectrum analyzer was -64dBm or -62dBm + 0 [dBi] + 1 dB. Capture the spectrum
analyzer plots on short pulse radar types, long pulse radar type and hopping radar waveform.

Central Frequency of Calibration:

   Bandwidth 20MHz: 5500MHz
   Bandwidth 40MHz: 5510MHz
   Bandwidth 80MHz: 5530MHz




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                                                           Test report no. 171001524SHA-006
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3.9 Radar Waveform Calibration Result

                                        5500MHz, Radar 0




                                        5510MHz, Radar 0




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                           5530MHz, Radar 0




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                                                                      Test report no. 171001524SHA-006
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4   In-Service Monitoring for Channel Move Time, Channel Closing Transmission
    Time and Non-Occupancy Period

These tests define how the following DFS parameters are verified during In-Service Monitoring; Channel
Closing Transmission Time, Channel Move Time, and Non-Occupancy Period.

The steps below define the procedure to determine the above mentioned parameters when a radar
Burst with a level equal to the DFS Detection Threshold + 1dB (-63dBm) is generated on the Operating
Channel of the U-NII device.

A U-NII device operating as a Client Device will associate with the UUT (Master) at 5530MHz. Stream
the MPEG test file from the Master Device to the Client Device on the selected Channel for the entire
period of the test.

At time T0 the Radar Waveform generator sends a Burst of pulses for each of the radar types at -63dBm.

Observe the transmissions of the UUT at the end of the radar Burst on the Operating Channel for
duration greater than 10 seconds. Measure and record the transmissions from the UUT during the
observation time (Channel Move Time). Compare the Channel Move Time and Channel Closing
Transmission Time results to the limits defined in the DFS Response requirement values table.

Type 0 radar was used for these tests.




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4.1 Channel Move Time, Channel Closing Transmission Time

                                          5530MHz




              Test Item                           Limit                        Results

         Channel Move Time                        10 s                           Pass
           Channel Closing          200ms + an aggregate of 60ms over
                                                                                 Pass
          Transmission Time            remaining 10 second period.




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                                                Test report no. 171001524SHA-006
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4.2 Non-Occupancy Period


                               5530MHz




              Test Item              Limit                      Results

        Non-Occupancy Period       30 minutes                     Pass




FCC ID: 2AJVQ-ZDGF7668AU
IC: 22470-ZDGF7668AU
                                                  TTRFFCCDFS_V1© 2017 Intertek



Document Created: 2017-12-26 19:25:12
Document Modified: 2017-12-26 19:25:12

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