Test Report - DFS

FCC ID: 2AH3ORCE20

Test Report

Download: PDF
FCCID_3950967

S RADIO DFS TEST REPORT T Report No:STS1807108W05 S Issued for Rapsodo Pte Ltd Block 67, Ayer Rajah Crescent, #04-10, Singapore 139950 L Product Name: Rapsodo Compute Engine A Brand Name: Model Name: Rapsodo RCE2.0 B Series Model: N/A FCC ID: 2AH3ORCE20 Test Standard: FCC Part 15.407 Any reproduction of this document must be done in full. No single part of this document may be reproduced without permission from STS, All Test Data Presented in this report is only applicable to presented Test sample. Shenzhen STS Test Services Co., Ltd. 1/F., Building B, Zhuoke Science Park, No.190, Chongqing Road, Fuyong Street, Bao’an District, Shenzhen, Guangdong, China TEL: +86-755 3688 6288 FAX: +86-755 3688 6277 E-mail:sts@stsapp.com

Page 2 of 27 Report No.: STS1807108W05 TEST REPORT CERTIFICATION Applicant’s name ................. : Rapsodo Pte Ltd Address ................................. : Block 67, Ayer Rajah Crescent, #04-10, Singapore 139950 Manufacture's Name ............ : Rapsodo Pte Ltd Address ................................. : Block 67, Ayer Rajah Crescent, #04-10, Singapore 139950 Product description Product Name ........................ : Rapsodo Compute Engine Brand Name ......................... : Rapsodo Model Name .......................... : RCE2.0 Series Model .......................... : N/A Test Standards ..................... : FCC Part 15.407 905462 D02 UNII DFS Compliance Procedures New Rules v02 Test procedure 905462 D03 UNII Clients Without Radar Detection New Rules v01r02 This device described above has been tested by STS, and the test results show that the equipment under test (EUT) is in compliance with the FCC&IC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of STS, this document only be altered or revised by STS, personal only, and shall be noted in the revision of the document. Date of Test ............................................ : Date (s) of performance of tests ............. : 11 July 2018~24 July 2018 Date of Issue ........................................... : 25 July 2018 Test Result ............................................... : Pass Testing Engineer : ( Chris chen ) Technical Manager : ( Sean she ) Authorized Signatory : (Vita Li)

Page 3 of 27 Report No.: STS1807108W05 Table of Contents 1. SUMMARY OF TEST RESULTS 5 1.1 TEST FACTORY 5 1.2 MEASUREMENT UNCERTAINTY 5 2. GENERAL INFORMATION 6 2.1 GENERAL DESCRIPTION OF EUT 6 2.2 TEST CONDITIONS AND CHANNEL 8 2.3 DFS MEASUREMENT INSTRUMENTATION 10 2.4 EQUIPMENTS LIST FOR ALL TEST ITEMS 11 3. DFS PARAMETERS 12 3.1 DFS PARAMETERS 12 3.2 DFS –TEST RESULTS 16

Page 4 of 27 Report No.: STS1807108W05 Revision History Rev. Issue Date Report NO. Effect Page Contents 00 25 July 2018 STS1807108W05 ALL Initial Issue

Page 5 of 27 Report No.: STS1807108W05 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards:KDB 905462 D02 UNII DFS Compliance Procedures New Rules v02 and 905462 D03 UNII Clients Without Radar Detection New Rules v01r02 Part 15.407 Operational Mode Requirement RESULTS Master Client Non-Occupancy Period Yes Yes Pass DFS Detection Threshold Yes Not required Not required Channel Availability Check Time Yes Not required Not required Channel Closing Transmission Time Yes Yes Pass Channel Move Time Yes Yes Pass U-NII Detection Bandwidth Yes Not required Not required 1.1 TEST FACTORY Shenzhen STS Test Services Co., Ltd. Add. : 1/F., Building B, Zhuoke Science Park, No.190, Chongqing Road, Fuyong Street, Bao’an District, Shenzhen, Guangdong, China CNAS Registration No.: L7649; FCC Registration No.: 625569 IC Registration No.: 12108A; A2LA Certificate No.: 4338.01; 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U，where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2，providing a level of confidence of approximately 95 %。 No. Item Uncertainty 1 DFS Threshold (radiated) ±1.50dB 2 DFS Threshold (conducted) ±1.45dB 7 Temperature ±0.5°C 8 Humidity ±2%

Page 6 of 27 Report No.: STS1807108W05 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Product Name Rapsodo Compute Engine Brand Name Rapsodo Model Name RCE2.0 Series Model N/A Model Difference N/A The EUT is Rapsodo Compute Engine 802.11a/n/ac(HT20):5260 MHz -5320 MHz 802.11a/n/ac(HT40):5270 MHz -5310 MHz Operation 802.11ac(HT80) 5290MHz Frequency: 802.11a/n/ac(HT20):5500 MHz -5700 MHz 802.11a/n/ac(HT40):5510 MHz -5670 MHz 802.11ac(HT80) 5530MHz-5610MHz Product Description 802.11a(OFDM):BPSK,QPSK,16-QAM,64-QAM Modulation Type: 802.11n(OFDM):BPSK,QPSK,16-QAM,64-QAM 802.11ac(OFDM):BPSK,QPSK,16-QAM,64-QAM Number Of Please see Note 2. Channel Antenna Ant A:4.5dBi Gain(Peak) Ant B:4.5dBi Based on the application, features, or specification exhibited in User’s Manual, the EUT is considered as an ITE/Computing Device. More details of EUT technical specification, please refer to the User’s Manual. Channel List Refer to below Sub-class H01 Power supply and ADP(rating): Adapter Input: AC 100V-240V, 50/60Hz, 0.5A Output: DC 5V/3A, 9V/2A, 12V/1.5A Battery(rating): Rated Voltage: 3.7V Battery Charge Limit: 4.2V Capacity :6900mAh Hardware version AP6356S number Software version fw_bcm4356a2_ag_mfg.bin number Note: 1 For a more detailed features description, please refer to the manufacturer’s specifications or . the User’s Manual.

Page 7 of 27 Report No.: STS1807108W05 2 Channel List for 802.11a/n/ac (HT20) Frequency Frequency Cha Frequency Frequency Channel Channel Channel (MHz) (MHz) nnel (MHz) (MHz) 52 5260 56 5280 60 5300 64 5320 Channel List for 802.11n/ac (HT40) Frequency Frequency Chan Frequency Frequency Channel Channel Channel (MHz) (MHz) nel (MHz) (MHz) 54 5270 62 5310 Channel List for 802.11a/n/ac (HT20) Frequency Frequency Chan Frequency Frequency Channel Channel Channel (MHz) (MHz) nel (MHz) (MHz) 100 5500 104 5520 108 5540 112 5560 116 5580 120 5600 124 5620 128 5640 132 5660 136 5680 140 5700 Channel List for 802.11 n/ac (HT40) Channel Frequency Channel Frequency (MHz) (MHz) 102 5510 110 5550 134 5670 For 802.11ac (HT80) Channel Freq.(MHz) Channel Freq.(MHz) 58 5290 106 5530 122 5610

Page 8 of 27 Report No.: STS1807108W05 3.EQUIPMENT UNDER TEST (EUT) DETAILS The manufacturer declared values for the EUT operational characteristics that affect DFS are as follows Operating Modes (5250 – 5350 MHz, 5470 – 5725 MHz) Master Device Client Device (no In Service Monitoring, no Ad-Hoc mode) Client Device with In-Service Monitoring Antenna Gains / EIRP (5250 – 5350 MHz, 5470 – 5725 MHz) 5250 – 5350 MHz 5470 – 5725 MHz 5580MHz 5300MHz (HT20) 5290MHz(HT80) 5610MHz(HT80) (HT20) Lowest Antenna 4.5 4.5 4.5 4.5 Gain (dBi) Highest Antenna Gain 4.5 4.5 4.5 4.5 (dBi) DFS Detection Threshold -62+1=-61 -62+1=-61 (dBm) Channel Protocol IP Based Frame Based OTHER_____________________ The EUT did not require modifications during testing in order to comply with the requirements of the standard(s) referenced in this test report. 2.2 TEST CONDITIONS AND CHANNEL Normal Test Conditions Temperature 15°C – 35°C Relative Humidity 20% - 75% Supply Voltage DC 3.7V Channel List for 802.11ac Band Frequency EUT Channel Test Frequency (MHz) CH60 5300 Band 2 CH58 5290

Page 9 of 27 Report No.: STS1807108W05 Channel List for 802.11ac Band Frequency EUT Channel Test Frequency (MHz) CH116 5580 Band 3 CH122 5610 Note: (1) The measurements are performed at the lowest available channels.

Page 10 of 27 Report No.: STS1807108W05 2.3 DFS MEASUREMENT INSTRUMENTATION a. RADAR GENERATION SYSTEM An Agilent PSG is used as the radar-generating source. The integral arbitrary waveform generators are programmed using Agilent’s “Pulse Building” software and Elliott custom software to produce the required waveforms, with the capability to produce both unmodulated and modulated (FM Chirp) pulses. Where there are multiple values for a specific radar parameter then the software selects a value at random and, for FCC tests,the software verifies that the resulting waveform is truly unique. With the exception of the hopping waveforms required by the FCC’s rules (see below),the radar generator is set to a single frequency within the radar detection bandwidth of the EUT. Frequency hopping radar waveforms are simulated using a time domain model. A randomly hopping sequence algorithm (which uses each channel in the hopping radar’s range once in a hopping sequence) generates a hop sequence. A segment of the first 100 elements of the hop sequence are then examined to determine if it contains one or more frequencies within the radar detection bandwidth of the EUT. If it does not then the first element of the segment is discarded and the next frequency in the sequence is added. The process repeats until a valid segment is produced. The radar system is then programmed to produce bursts at time slots coincident with the frequencies within the segment that fall in the detection bandwidth. The frequency of the generator is stepped in 1 MHz increments across the EUT’s detection range. The radar signal level is verified during testing using a CW signal with the AGC function switched on. Correction factors to account for the fact that pulses are generated with the AGC functions switched off are measured annually and an offset is used to account for this in the software.The generator output is connected to the coupling port of the conducted set-up or to the radar-generating antenna. b. CHANNEL MONITORING SYSTEM Channel monitoring is achieved using a spectrum analyzer and digital storage oscilloscope. The analyzer is configured in a zero-span mode, center frequency set to the radar waveform’s frequency or the center frequency of the EUT’s operating channel. The IF output of the analyzer is connected to one input of the oscilloscope and analyzer. A signal generator output is set to send either the modulating signal directly or a pulse gate with an output pulse co-incident with each radar pulse. This output is connected to a second input on the oscilloscope and the oscilloscope displays both the channel traffic (via the if input) and the radar pulses on its display. For in service monitoring tests the analyzer sweep time is set to > 20 seconds and the oscilloscope is configured with a data record length of 10 seconds for the short duration and frequency hopping waveforms, 20 seconds for the long duration waveforms. Both instruments are set for a single acquisition sequence. The analyzer is triggered 500ms before the start of the waveform and the oscilloscope is triggered directly by the modulating pulse train. Timing measurements for aggregate channel transmission time and channel move time are made from the oscilloscope data, with the end of the waveform clearly identified by the pulse train on one trace. The analyzer trace data is used to confirm that the last transmission occurred within the 10-second record of the

Page 11 of 27 Report No.: STS1807108W05 oscilloscope. If necessary the record length of the oscilloscope is expanded to capture the last transmission on the channel prior to the channel move. Channel availability check time timing plots are made using the analyzer. The analyzer is triggered at start of the EUT’s channel availability check and used to verify that the EUT does not transmit when radar is applied during the check time. The analyzer detector and oscilloscope sampling mode is set to peak detect for all plots. 2.4 EQUIPMENTS LIST FOR ALL TEST ITEMS Kind of Equipment Manufacturer Type No. Serial No. Last calibration Calibrated until Signal Generator Agilent M11C182A MY46240556 2017.10.15 2018.10.14 Signal Analyzer Agilent N9020A MY49100060 2017.10.15 2018.10.14 Rio tinto in Coupler ZFSC-2-11 15542 2017.10.15 2018.10.14 overseas Rio tinto in Coupler ZN2PD-9G SF078500430 2017.10.15 2018.10.14 overseas Attenuator HP 8494B DC-18G 2017.10.15 2018.10.14 Router TP-LINK TL-WR885N 1125074010735 N.C.R N.C.R PC HP 500-320cx 4CV428DQYN N.C.R N.C.R

Page 12 of 27 Report No.: STS1807108W05 3. DFS PARAMETERS 3.1 DFS PARAMETERS Table 1: Applicability of DFS Requirements Prior to Use of a Channel Table 2: Applicability of DFS requirements during normal operation

Page 13 of 27 Report No.: STS1807108W05 Table 3: DFS Detection Thresholds for Master Devices and Client Devices With Radar Detection Table 4: DFS Response Requirement Values

Page 14 of 27 Report No.: STS1807108W05 Table 5 – Short Pulse Radar Test Waveforms Table 5a - Pulse Repetition Intervals Values for Test A 

Page 15 of 27 Report No.: STS1807108W05 The aggregate is the average of the percentage of successful detections of Short Pulse Radar Types 1-4. For example, the following table indicates how to compute the aggregate of percentage of successfuldetections. Long Pulse Radar Test Waveform Table 6 – Long Pulse Radar Test Waveform Figure 1 provides a graphical representation of the Long Pulse Radar Test Waveform. Table 7 – Frequency Hopping Radar Test Waveform

Page 16 of 27 Report No.: STS1807108W05 3.2 DFS –TEST RESULTS 3.2.1 TEST RESULTS– FCC Part 15.407 CLIENT DEVICE FCC Part 15.407 Client Device Test Result Summary Radar Radar Measured Description Requirement Test Data Status Type Frequency Value Band 2 Channel closing 5300 220ms 0 <260ms 3.3.4 Complies transmission time 5290 240ms Channel move 5300 0.543s 0 <10s 3.3.4 Complies time 5290 0.578s not be less 5300 than 30 Non-Occupancy Minutes 0 30 Minutes 3.3.4 Complies Period not be less 5290 than 30 Minutes Band 3 Channel closing 5580 240ms 0 <260ms 3.3.4 Complies transmission time 5610 240ms Channel move 5580 0.486s 0 <10s 3.3.4 Complies time 5610 0.593s not be less 5580 than 30 Non-Occupancy Minutes 0 30 Minutes 3.3.4 Complies Period not be less 5610 than 30 Minutes Notes: 1) Tests were performed using the conduction test method. 2) Channel availability check, detection threshold and non-occupancy period are not applicable to client devices. 3.2.2 DFS MEASUREMENT METHODS a. DFS – CHANNEL CLOSING TRANSMISSION TIME AND CHANNEL MOVE TIME 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. 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.

Page 17 of 27 Report No.: STS1807108W05 b.DFS – CHANNEL NON-OCCUPANCY AND VERIFICATION OF PASSIVE SCANNING Non-occupancy Period. A channel that has been flagged as containing a radar system, either by a channel availability check or in-service monitoring, is subject to a non-occupancy period of at least 30 minutes. The non-occupancy period starts at the time when the radar system is detected. c. CHANNEL AVAILABILITY CHECK TIME Channel Availability Check Time. A U-NII device shall check if there is a radar system already operating on the channel before it can initiate a transmission on a channel and when it has to move to a new channel. The U-NII device may start using the channel if no radar signal with a power level greater than the interference threshold values listed in paragraph (h)(2) of this section, is detected within 60 seconds. d. CONTROL (TPC) Compliance with the transmit power control requirements for devices is demonstrated through measurements showing multiple power levels and manufacturer statements explaining how the power control is implemented. e. DETECTION PROBABILITY / SUCCESS RATE 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. Minimum 100% of the U-NII 99% transmission power bandwidth. f. NON- OCCUPANCY PERIOD During the 30 minutes observation time, UUT did not make any transmissions on a channel after a radar signal was detected on that channel by either the Channel Availability Check or the In-Service Monitoring 3.2.3 DFS CONDUCTION TEST METHOD

Page 18 of 27 Report No.: STS1807108W05 a. The signal level of the simulated waveform is set to a reference level equal to the threshold level (plus 1dB if testing against FCC requirements). Lower levels may also be applied on request of the manufacturer. The signal level is verified by measuring the CW signal level at the coupling point to the RDD antenna port. The radar signal level is calculated from the measured level, R (dBm) and the lowest gain antenna assembly intended for use with the RDD If both master and client devices have radar detection capability then the radar level at the non RDD is verified to be at least 20dB below the threshold level to ensure that any responses are due to the RDD detecting radar. The antenna connected to the channel monitoring subsystem is positioned to allow both master and client transmissions to be observed, with the level of the EUT’s transmissions between 6 and 10dB higher than those from the other device. b.Set-upB is a set-up whereby the UUT is an RLAN device operating in slave mode, with or without RadarInterference Detection function. This set-up also contains an RLAN device operating in master mode. The radar test signals are injected into the master device. The UUT (slave device)is associated with the master device.Figure 5 shows an example for Set-up B. The set-up usedshall be documented in the test report.

Page 19 of 27 Report No.: STS1807108W05 3.2.4 DFS Test Data Band 2 HT20 Channel move time & Channel Closing Transmission Time for Type 0 radar. Radar Signal Channel Closing Transmission Time EUT Transsmission Channel move time Note: Dwell (20 ms)= Sweep Time (20010 ms) / Sweep Point Bins (1001) Channel Closing Transmission Time (200 + 20 ms) = 200 + Number (1) X Dwell (20 ms) < 260ms HT20 / Non- Occupancy Period Radar Signal EUT Transmission Noise Floor 30min

Page 20 of 27 Report No.: STS1807108W05 HT80 Channel move time & Channel Closing Transmission Time for Type 0 radar. Radar Signal Channel Closing Transmission Time EUT Transsmission Channel move time Note: Dwell (20 ms)= Sweep Time (20010 ms) / Sweep Point Bins (1001) Channel Closing Transmission Time (200 + 40 ms) = 200 + Number (2) X Dwell (20 ms) < 260ms HT80 / Non- Occupancy Period Radar Signal EUT Transmision Noise Floor 30min

Page 21 of 27 Report No.: STS1807108W05 Band 3 HT20 Channel move time & Channel Closing Transmission Time for Type 0 radar. Radar Signal Channel Closing Transmission Time EUT Transsmission Channel move time Note: Dwell (20 ms)= Sweep Time (20010 ms) / Sweep Point Bins (1001) Channel Closing Transmission Time (200 + 40 ms) = 200 + Number (2) X Dwell (20 ms) < 260ms HT20 / Non- Occupancy Period Radar Signal EUT Transmission Noise Floor 30min

Page 22 of 27 Report No.: STS1807108W05 HT80 Channel move time & Channel Closing Transmission Time for Type 0 radar. Radar Signal Channel Closing Transmission Time EUT Transsmission Channel move time Note: Dwell (20 ms)= Sweep Time (20010 ms) / Sweep Point Bins (1001) Channel Closing Transmission Time (200 + 40 ms) = 200 + Number (2) X Dwell (20 ms) < 260ms HT80 / Non- Occupancy Period Radar Signal EUT Transmision Noise Floor 30min

Page 23 of 27 Report No.: STS1807108W05 Radar waveform calibration Type 0 Type 1

Page 24 of 27 Report No.: STS1807108W05 Type 2 Type 3

Page 25 of 27 Report No.: STS1807108W05 Type 4 Type 5

Page 26 of 27 Report No.: STS1807108W05 Type 6

Page 27 of 27 Report No.: STS1807108W05 3.2.5 DFS Test photo ※※※※※END OF THE REPORT※※※※※


Document Created: 2018-08-03 01:16:39
Document Modified: 2018-08-03 01:16:39
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC