Test Report (DFS)

FCC ID: YZZGSC3510

Test Report

Download: PDF
FCCID_4350818

FCC PART 15.407 DYNAMIC FREQUENCY SELECTION TEST REPORT For Grandstream Networks, Inc. 126 Brookline Ave., 3rd Floor Boston, MA 02215, USA FCC ID: YZZGSC3510 Report Type: Product Type: Original Report SIP Two-Way Interco m Speaker Report Number: RSZ190511002-00E Report Date: 2019-05-29 Robin Zheng Reviewed By: RF Engineer Bay Area Compliance Laboratories Corp. (Dongguan) No.69 Pulongcun, Puxinhu Industry Area, Tangxia, Dongguan, Guangdong, China Test Laboratory: Tel: +86-769-86858888 Fax: +86-769-86858891 www.baclcorp.com.cn Note: This test report is prepared for the customer shown above and for the device described herein. It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (Dongguan). This report must not be used by the customer to claim product certification, approval, or endorsement by A2LA* or any agency of the Federal Government. * This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “*”.

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E TABLE OF CONTENTS GENERAL INFORMATION .......................................................................................................................................3 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) .....................................................................................3 OBJECTIVE ...................................................................................................................................................................3 TEST METHODOLOGY ..................................................................................................................................................3 TEST FACILITY .............................................................................................................................................................3 SYSTEM TEST CONFIGURATION ..........................................................................................................................4 DESCRIPTION OF TEST CONFIGURATION ......................................................................................................................4 EUT EXERCISE SOFTWARE ..........................................................................................................................................4 EQUIPMENT MODIFICATIONS .......................................................................................................................................4 SUPPORT EQUIPMENT LIST AND DETAILS ....................................................................................................................4 EXTERNAL CABLE........................................................................................................................................................4 SUMMARY OF TEST RESULTS ...............................................................................................................................5 APPLICABLE STANDARDS........................................................................................................................................6 DFS REQUIREMENT .....................................................................................................................................................6 DFS MEASUREMENT SYSTEM ....................................................................................................................................10 SYSTEM BLOCK DIAGRAM .........................................................................................................................................10 CONDUCTED METHOD ...............................................................................................................................................11 RADIATED METHOD ...................................................................................................................................................12 TEST PROCEDURE ......................................................................................................................................................12 TEST RESULTS ..........................................................................................................................................................13 DESCRIPTION OF EUT ................................................................................................................................................13 TEST EQUIPMENT LIST AND DETAILS .........................................................................................................................13 RADAR WAVEFORM CALIBRATION ............................................................................................................................14 TEST ENVIRONMENTAL CONDITIONS .........................................................................................................................14 CHANNEL MOVE TIME AND CHANNEL CLOSING TRANSMISSION TIME .............................................16 TEST PROCEDURE ......................................................................................................................................................16 TEST RESULTS ...........................................................................................................................................................16 NON-OCCUPANCY PERIOD ...................................................................................................................................21 TEST PROCEDURE ......................................................................................................................................................21 TEST RESULT .............................................................................................................................................................21 FCC Part 15.407 DFS Test Report Page 2 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E GENERAL INFORMATION Product Description for Equipment under Test (EUT) EUT Name: SIP Two-Way Intercom Speaker EUT Model: GSC3510 Multiple Models: GSC3505 Rated Input Voltage: DC 48V from POE External Dimension: 215.3 mm(L)*215.3 mm(W)* 68.7mm(H) EUT Received Date: 2019.5.15 Objective This report is prepared on behalf of Grandstream Networks, Inc. in accordance with Part 2-Subpart J, Part 15-Subparts E of the Federal Communications Commission’s rules. The objective is to determine compliance with FCC Part 15, Subpart E, section 15.407 Dynamic Frequency Selection (DFS) for devices operating in the bands 5250-5350 MHz, 5470-5725 MHz. Test Methodology FCC KDB 905462 D02 UNII DFS Compliance Procedures New Rules v02. Test Facility The Test site used by Bay Area Compliance Laboratories Corp. (Dongguan) to collect test data is located on the No.69 Pulongcun, Puxinhu Industry Area, Tangxia, Dongguan, Guangdong, China. The test site has been approved by the FCC under the KDB 974614 D01 and is listed in the FCC Public Access Link (PAL) database, FCC Registration No. : 897218,the FCC Designation No. : CN1220. The test site has been registered with ISED Canada under ISED Canada Registration Number 3062D. FCC Part 15.407 DFS Test Report Page 3 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E SYSTEM TEST CONFIGURATION Description of Test Configuration The EUT was configured for testing in an engineering mode which was provided by the manufacturer. EUT Exercise Software The test was performed under: DOS command, which was provided by the manufacturer. Equipment Modifications N/A Support Equipment List and Details Manufacturer Description Model Serial Number ThinkPad Laptop E450 PF-0MR8KV 16/08 Huawei Wireless Router HG8245Q2 N/A Note: The mater AP model: HG8245Q2, FCC ID: QISHG8245Q2 External Cable Shielding Length Cable Description Ferrite Core From Port To Type (m) RJ45 Port of GPON RJ45 Cable No No 10 Notebook Terminal FCC Part 15.407 DFS Test Report Page 4 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E SUMMARY OF TEST RESULTS The following result table represents the list of measurements required under the CFR §47 Part 15.407(h), and KDB: 905462 D02 UNII DFS Compliance Procedures New Rules v02 Items Description of Test Result Detection UNII Detection Bandwidth Not applicable Bandwidth Initial Channel Availability Check Time (CAC) Not applicable Performance Requirements Radar Burst at the Beginning of the CAC Not applicable Check Radar Burst at the End of the CAC Not applicable Channel Move Time Compliant In-Service Channel Closing Transmission Time Compliant Monitoring Non-Occupancy Period Compliant Radar Detection Statistical Performance Check Not applicable Note: 1) Not applicable: the EUT is a client unit without radar detection. FCC Part 15.407 DFS Test Report Page 5 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E APPLICABLE STANDARDS DFS Requirement CFR §47 Part 15.407(h) FCC KDB 905462 D02 UNII DFS Compliance Procedures New Rules v02 FCC Part 15.407 DFS Test Report Page 6 of 22

Table 3: DFS Detection Thresholds for Master Devices and Client Devices With Radlar Detection Mazimum Transmit Power Value (See Notes 1. 2. and 3) EIRP 2 200 milliwat 61 dBm EIRD 200 milliwat and 62 dBm power spectral density < 10 dBmvMite EIRP 200 milliwatt that do not meetthe power spectral 64 dBm density requirement Note 1: Thi is thelevel at ie mput of he eceiverassuming a 0 dreceive aneuna Note 2: Throughouthesetet procedures anadditional 1 dB has been added to the amplitude of thtest transmission waveforms to accourfor variations in measurement equipment. Thi will ensure that the test signalis at oabove the detection threshold levelto igger a DFS response NoteS: EIRP is based on the highest antenna gain. For MIMO devices refeto KDB Publication 66291 1 Dol Table 4: DFS Response Requirement Values Parameter Value Ton—occupancy period Minimum 30 minutes Channel Availability Check Time 60 seconds Channel Move Time 10 seconds See Note1 Channel Closmg Transmission Time 200 mailliseconds > an agsregate of 60 milliseconds over remaining 10 second period See Notes 1 and 2. UNII Detection Bandwids Minimum 100%of the U— NIT99%transmission power bandwidih. See Note 3. Note T. Chamel Mow Te and the Chamel Clong Tramsmission Time should be performed with Radar Type 0. The measurement timing beainsat the end ofthe Radar Type 0 bucst Note The Channel Closing Pransmission Time is comprised. of 200 millieconds strting at the beginaing of the Chamel Move ie plus anyadditional intermittent control signals required to facilitate a Chamne! move (an agaregate of 60 milliseconds) during the remainder of the 10 second period. The ageregnte duration of control signals will not sount quiet periods in between transmissions Note 3: During the U—NZIDorection Bandwidth detection test,radar type 0 should be used. For each frequency step the minimum percentage of detection is 90 percent. Measurements are performedwith no data traffic

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E FCC Part 15.407 DFS Test Report Page 8 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E FCC Part 15.407 DFS Test Report Page 9 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E DFS Measurement System BACL DFS measurement system consists of two subsystems: (1) The radar signal generating subsystem and (2) the traffic monitoring subsystem. System Block Diagram FCC Part 15.407 DFS Test Report Page 10 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E Conducted Method Setup for Master with injection at the Master Setup for Client with injection at the Master FCC Part 15.407 DFS Test Report Page 11 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E Setup for Client with injection at the Client Radiated Method Test Procedure A spectrum analyzer is used as a monitor verifies that the EUT status including Channel Closing Transmission Time and Channel Move Time, and does not transmit on a Channel during the Non- Occupancy Period after the diction and Channel move. FCC Part 15.407 DFS Test Report Page 12 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E TEST RESULTS Description of EUT The calibrated radiated DFS detection threshold level is set to -64 dBm is more stringent. WLAN traffic is generated by software “Tfgen”, software is used by IP and Frame based systems for loading the test channel during the In-service compliance testing of the U-NII device. Datapakge streamed from the Access Point to the Client using the software “Tfgen”. Test Equipment List and Details Serial Calibration Calibration Manufacturer Description Model Number Date Due Date NI PXI-1042 8-Slot National Instruments PXI-1042 VOBX40FBD N/A N/A chassis Arbitrary Waveform National Instruments PXI-5421 N/A N/A N/A Generator National Instruments RF Upconverter PXI-5610 N/A N/A N/A ASCOR Upconverter AS-7202 N/A N/A N/A Agilent Spectrum Analyzer E4440A SG43360054 2019-01-04 2020-01-04 Ditorn Splitter/Combiner D3C4080 SN2244 N/A N/A TDK RF horn antenna HRN-0118 130 084 2019-01-05 2022-01-04 ETS LINDGREN horn antenna 3115 000 527 35 2019-01-05 2022-01-04 * Statement of Traceability: Bay Area Compliance Laboratories Corp. (Dongguan) attests that all calibrations have been performed, traceable to National Primary Standards and International System of Units (SI). FCC Part 15.407 DFS Test Report Page 13 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E Radar Waveform Calibration Test Environmental Conditions Temperature: 27.3 C Relative Humidity: 54 % ATM Pressure: 100.7 kPa The testing was performed by Elena Lei on 2019-05-21. Plots of Radar Waveforms FCC Part 15.407 DFS Test Report Page 14 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E 5270 MHz: Radar Type 0 5510 MHz: Radar Type 0 FCC Part 15.407 DFS Test Report Page 15 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E CHANNEL MOVE TIME AND CHANNEL CLOSING TRANSMISSION TIME Test Procedure 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. repeat using a long pulse radar type5 waveform. 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. The aggregate channel closing transmission time is calculated as follows: Aggregate Transmission Time = N*Dwell Time N is the number of spectrum analyzer bins showing a device transmission Dwell Time is the dwell time per bin (i.e. Dwell Time = S/B, S is the sweep time and B is the number of bin, i.e. 8192) Test Results Frequency Bandwidth Radar Type Results (MHz) (MHz) 5270 40 Type 0 Compliant 5510 40 Type 0 Compliant Please refer to the following tables and plots. FCC Part 15.407 DFS Test Report Page 16 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E 5270 MHz Type 0 radar channel move time result: FCC Part 15.407 DFS Test Report Page 17 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E Type0 radar channel closing transmission time result: Aggregate Limit for Aggregate Transmission Transmission Time Transmission Time Result After 200ms After 200ms Delay After 200ms Delay (ms) (ms) Yes 7.324 60 Pass FCC Part 15.407 DFS Test Report Page 18 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E 5510 MHz Type 0 radar channel move time result: FCC Part 15.407 DFS Test Report Page 19 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E Type0 radar channel closing transmission time result: Aggregate Limit for Aggregate Transmission Transmission Time Transmission Time Result After 200ms After 200ms Delay After 200ms Delay (ms) (ms) Yes 7.324 60 Pass FCC Part 15.407 DFS Test Report Page 20 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E NON-OCCUPANCY PERIOD Test Procedure Measure the EUT for more than 30 minutes following the channel close/move time to very that the EUT does not resume any transmissions on this channel. Provide one plot to demonstrate no transmission on the channel for the non-occupancy period (30 minutes observation time) Test Result Bandwidth Frequency(MHz) Spectrum Analyzer Display (MHz) 5270 40 No transmission within 30 minutes 5510 40 No transmission within 30 minutes Please refer to the following plots. 5270 MHz 30 minutes FCC Part 15.407 DFS Test Report Page 21 of 22

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RSZ190511002-00E 5510 MHz 30 minutes ***** END OF REPORT ***** FCC Part 15.407 DFS Test Report Page 22 of 22


Document Created: 2019-07-11 05:44:10
Document Modified: 2019-07-11 05:44:10
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC