test report2

FCC ID: 2ALS5-HUGCHAIR

Test Report

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FCCID_4258529

Report No.: ATE20190291 Page 81 of 96 12.2.The Limit For Section 15.247(d) Section 15.247(d): In any 100 kHz bandwidth outside the frequency band in which the spread spectrum or 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, based on either an RF conducted or a radiated measurement, provided the transmitter demonstrates compliance with the peak conducted power limits. If the transmitter complies with the conducted power limits based on the use of RMS averaging over a time interval, as permitted under paragraph (b)(3) of this section, the attenuation required under this paragraph shall be 30 dB instead of 20 dB. Attenuation below the general limits specified in Section 15.209(a) is not required. In addition, radiated emissions which fall in the restricted bands, as defined in Section 15.205(a), must also comply with the radiated emission limits specified in Section 15.209(a). 12.3.Restricted bands of operation 12.3.1.FCC Part 15.205 Restricted bands of operation (a) Except as shown in paragraph (d) of this section, Only spurious emissions are permitted in any of the frequency bands listed below: MHz MHz MHz GHz 0.090-0.110 16.42-16.423 399.9-410 4.5-5.15 1 0.495-0.505 16.69475-16.69525 608-614 5.35-5.46 2.1735-2.1905 16.80425-16.80475 960-1240 7.25-7.75 4.125-4.128 25.5-25.67 1300-1427 8.025-8.5 4.17725-4.17775 37.5-38.25 1435-1626.5 9.0-9.2 4.20725-4.20775 73-74.6 1645.5-1646.5 9.3-9.5 6.215-6.2l8 74.8-75.2 1660-1710 10.6-12.7 6.26775-6.26825 108-121.94 17l8.8-1722.2 13.25-13.4 6.31175-6.31225 123-138 2200-2300 14.47-14.5 8.291-8.294 149.9-150.05 2310-2390 15.35-16.2 8.362-8.366 156.52475-156.52525 2483.5-2500 17.7-21.4 8.37625-8.38675 156.7-156.9 2690-2900 22.01-23.12 8.41425-8.41475 162.0125-167.17 3260-3267 23.6-24.0 12.29-12.293 167.72-173.2 3332-3339 31.2-31.8 12.51975-12.52025 240-285 3345.8-3358 36.43-36.5 12.57675-12.57725 322-335.4 3600-4400 (2) 13.36-13.41 1 Until February 1, 1999, this restricted band shall be 0.490-0.510 2 Above 38.6 (b) Except as provided in paragraphs (d) and (e), the field strength of emission appearing within these frequency bands shall not exceed the limits shown in Section 15.209. At frequencies equal to or less than 1000MHz, Compliance with the limits in Section 15.209 shall be demonstrated using measurement instrumentation employing a CISPR quasi-peak detector. Above 1000MHz, compliance with the emission limits in Section15.209 shall be demonstrated based on the average value of the measured emissions. The provisions in Section 15.35 apply to these measurements. FCC ID: 2ALS5-HUGCHAIR Shenzhen Accurate Technology Co., Ltd

Report No.: ATE20190291 Page 82 of 96 12.4.Configuration of EUT on Measurement The equipment is installed on Radiated Emission Measurement to meet the commission requirements and operating regulations in a manner which tends to maximize its emission characteristics in normal application. 12.5.Test Procedure The EUT and its simulators are placed on a turntable, which is 0.1 meter high above ground(Below 1GHz). The EUT and its simulators are placed on a turntable, which is 0.1 meter high above ground(Above 1GHz). The turntable can rotate 360 degrees to determine the position of the maximum emission level. EUT is set 3.0 meters away from the receiving antenna, which is mounted on an antenna tower. The antenna can be moved up and down between 1.0 meter and 4 meters to find out the maximum emission level. Broadband antenna (calibrated bi-log antenna) is used as receiving antenna. Both horizontal and vertical polarizations of the antenna are set on measurement. In order to find the maximum emission levels, all of the EUT location must be manipulated according to ANSI C63.10:2013 on radiated emission measurement. This EUT was tested in 3 orthogonal positions and the worst case position data was reported. During the radiated emission test, the spectrum analyzer was set with the following configurations: 1. The resolution bandwidth and video bandwidth of test receiver/spectrum analyzer is 120kHz for Quasi-peak at frequency below 1GHz. 2. The resolution bandwidth of test receiver/spectrum analyzer is 1MHz and video bandwidth is 3MHz for peak measurement with peak detector at frequency above 1GHz. 3. The resolution bandwidth of test receiver/spectrum analyzer is 1MHz and video bandwidth is 10Hz for Average measurement with peak detection at frequency above 1GHz. 4. All modes of operation were investigated and the worst-case emissions are reported. FCC ID: 2ALS5-HUGCHAIR Shenzhen Accurate Technology Co., Ltd

Report No.: ATE20190291 Page 83 of 96 12.6.Data Sample Frequency Reading Factor Result Limit Margin Remark (MHz) (dBv) (dB/m) (dBv/m) (dBv/m) (dB) X.XX 48.69 -13.35 35.34 46 -10.66 QP Frequency(MHz) = Emission frequency in MHz Reading(dBv) = Uncorrected Analyzer/Receiver reading Factor (dB/m) = Antenna factor + Cable Loss – Amplifier gain Result(dBv/m) = Reading(dBv) + Factor(dB/m) Limit (dBv/m) = Limit stated in standard Margin (dB) = Result(dBv/m) - Limit (dBv/m) QP = Quasi-peak Reading Calculation Formula: Margin(dB) = Result (dBV/m)–Limit(dBV/m) Result(dBV/m)= Reading(dBV)+ Factor(dB/m) The “Margin” column of the following data tables indicates the degree of compliance with the applicable limit. For example, a margin of -7dB means the emission is 7dB below the limit. 12.7.The Field Strength of Radiation Emission Measurement Results Note: 1.We tested GFSK mode, ∏/4-DQPSK Mode, 8DPSK mode and recorded the worst case data (GFSK mode) for all test mode. 2.The radiation emissions from 9kHz-30MHz and l8-25GHz are not reported, because the test values lower than the limits of 20dB. The spectrum analyzer plots are attached as below. FCC ID: 2ALS5-HUGCHAIR Shenzhen Accurate Technology Co., Ltd

Report No.: ATE20190291 Page 84 of 96 30MHz-1000MHz test data(Worse case) FCC ID: 2ALS5-HUGCHAIR Shenzhen Accurate Technology Co., Ltd

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Report No.: ATE20190291 Page 90 of 96 1GHz-l8GHz test data(Worse case) FCC ID: 2ALS5-HUGCHAIR Shenzhen Accurate Technology Co., Ltd

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Report No.: ATE20190291 Page 96 of 96 13. ANTENNA REQUIREMENT 13.1.The Requirement According to Section 15.203, an intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. 13.2.Antenna Construction Device is equipped with permanent attached antenna, which isn’t displaced by other antenna. The Antenna gain of EUT is 0dBi. Therefore, the equipment complies with the antenna requirement of Section 15.203. Antenna FCC ID: 2ALS5-HUGCHAIR Shenzhen Accurate Technology Co., Ltd


Document Created: 2019-04-30 11:18:54
Document Modified: 2019-04-30 11:18:54
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