Page 1 of 23 Report No.: HK1907231855-E FCC TEST REPORT Test report On Behalf of Shantou Chenghai Jiexiang Technology Co., Ltd. For R C Four-Axis Aircraft Model No.: 1808, 1501, 1601, 1602, 1508, R8, R7, A31, A200, A21,A300, 1801, 1802, 1807, 1811 FCC ID: 2AT6T-1808 Prepared for :
Shantou Chenghai Jiexiang Technology Co., Ltd. Xiajiao Industrial Zone,Chenghai District,Shantou City, China Prepared By :
Shenzhen HUAK Testing Technology Co., Ltd. 1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai Street, Bao'an District, Shenzhen City, China Date of Test:
July 14, 2019 ~ July 31, 2019 Date of Report:
July 31, 2019 Report Number: HK1907231855-E Page 2 of 23 Report No.: HK1907231855-E TEST RESULT CERTIFICATION Applicants name ................. : Shantou Chenghai Jiexiang Technology Co., Ltd. Address ................................. : Xiajiao Industrial Zone,Chenghai District,Shantou City, China Manufacture's Name ............ : Shantou Chenghai Jiexiang Technology Co., Ltd. Address ................................. : Xiajiao Industrial Zone,Chenghai District,Shantou City, China Product description Trade Mark:
N/A Product name ........................... : R C Four-Axis Aircraft Model and/or type reference :
1808, 1501, 1601, 1602, 1508, R8, R7, A31, A200, A21, A300, 1801, 1802, 1807, 1811 FCC Rules and Regulations Part 15 Subpart C Section 15.249 ANSI C63.10: 2013 Standards ............................. :
This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test ............................................ :
Date (s) of performance of tests ............. : July 14, 2019 ~ July 31, 2019 Date of Issue ........................................... : July 31, 2019 Test Result .............................................. : Pass Testing Engineer Technical Manager
:
:
(Gary Qian)
(Eden Hu) Authorized Signatory :
(Jason Zhou) Page 3 of 23 Report No.: HK1907231855-E Table of Contents Page 1 . TEST SUMMARY 2 . GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT 2.2 Carrier Frequency of Channels 2.3 Operation of EUT during testing 2.4 DESCRIPTION OF TEST SETUP 2.5 MEASUREMENT INSTRUMENTS LIST 3 . CONDUCTED EMISSIONS TEST 3.1 Conducted Power Line Emission Limit 3.2 Test Setup 3.3 Test Procedure 3.4 Test Result Not applicable for device which is DC Power supply. 4 RADIATED EMISSION TEST 4.1 Radiation Limit 4.2 Test Setup 4.3 Test Procedure 4.4 Test Result 5 BAND EDGE 5.1 Limits 5.2 Test Procedure 5.3 Test Result 6 OCCUPIED BANDWIDTH MEASUREMENT 6.1 Test Setup 6.2 Test Procedure 6.3 Measurement Equipment Used 6.4 Test Result 7 ANTENNA REQUIREMENT 8 PHOTOGRAPH OF TEST 8.1 Radiated Emission 9 PHOTOS OF THE EUT 4 5 5 6 6 6 7 8 8 8 8 8 8 9 9 9 10 10 16 16 16 17 19 19 19 19 19 21 22 22 23 Page 4 of 23 Report No.: HK1907231855-E 1. TEST SUMMARY 1.1 TEST PROCEDURES AND RESULTS DESCRIPTION OF TEST CONDUCTED EMISSIONS TEST RADIATED EMISSION TEST BAND EDGE OCCUPIED BANDWIDTH MEASUREMENT ANTENNA REQUIREMENT 1.2 TEST FACILITY RESULT COMPLIANT COMPLIANT COMPLIANT COMPLIANT COMPLIANT Test Firm Address Shenzhen HUAK Testing Technology Co., Ltd. 1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai Street, Bao'an District, Shenzhen City, China 1.3 MEASUREMENT UNCERTAINTY Measurement Uncertainty Conducted Emission Expanded Uncertainty Radiated emission expanded uncertainty(9kHz-30MHz) Radiated emission expanded uncertainty(30MHz-1000MHz) Radiated emission expanded uncertainty(Above 1GHz)
= 2.23dB, k=2 3.08dB, k=2
=
= 4.42dB, k=2 4.06dB, k=2
=
Page 5 of 23 Report No.: HK1907231855-E 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Equipment Model Name Serial Model Model Difference FCC ID Antenna Type Antenna Gain Equipment BT Operation frequency Number of Channels Modulation Type Power Source Power Rating R C Four-Axis Aircraft 1808 1501, 1601, 1602, 1508, R8, R7, A31, A200, A21,A300, 1801, 1802, 1807, 1811 All models the function, software and electric circuit are the same, only with a product color and model named different. Test sample model: 1808 2AT6T-1808 internal Antenna 1dBi R C Four-Axis Aircraft 2446-2481MHz 36CH GFSK DC 4.5V from battery DC 4.5V from battery Page 6 of 23 Report No.: HK1907231855-E 2.2 Carrier Frequency of Channels Channel 01 02 03 04 05 06 07 08 09 10 Frequency
(MHz) 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 Channel 11 12 13 14 15 16 17 18 19 20 Channel List Frequency
(MHz) 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 Channel 21 22 23 24 25 26 27 28 29 30 Frequency
(MHz) 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 Channel 31 32 33 34 35 36 2.3 Operation of EUT during testing Frequency
(MHz) 2476 2477 2478 2479 2480 2481 Operating Mode The mode is used: Transmitting mode Low Channel: 2446MHz Middle Channel: 2463MHz High Channel: 2481MHz 2.4 DESCRIPTION OF TEST SETUP Operation of EUT during conducted testing and Radiation testing:
Operation of EUT during Above1GHz Radiation testing:
EUT EUT Page 7 of 23 Report No.: HK1907231855-E 2.5 MEASUREMENT INSTRUMENTS LIST Item Equipment Manufacturer Model No. Serial No. Last Cal. Cal. Interval 1. 2. 3. L.I.S.N. Artificial Mains Network Receiver RF automatic control unit R&S R&S ENV216 HKE-002 Dec. 27, 2018 1 Year ESCI 7 HKE-010 Dec. 27, 2018 1 Year Tonscend JS0806-2 HKE-060 Dec. 27, 2018 1 Year 4. Spectrum analyzer 5. Spectrum analyzer 6. 7. Preamplifier R&S Agilent FSP40 N9020A Schwarzbeck BBV 9743 ESCI 7 EMI Test Receiver Rohde & Schwarz Bilog Broadband Antenna HKE-025 HKE-048 HKE-006 HKE-010 Dec. 27, 2018 1 Year Dec. 27, 2018 1 Year Dec. 27, 2018 1 Year Dec. 27, 2018 1 Year 8. 9. 10. 11. 12. 13. Schwarzbeck VULB9163 HKE-012 Dec. 27, 2018 1 Year Loop Antenna Schwarzbeck FMZB 1519 B HKE-014 Dec. 27, 2018 1 Year Horn Antenna Schewarzbeck 9120D HKE-013 Dec. 27, 2018 1 Year Pre-amplifier EMCI Pre-amplifier Agilent EMI Test Software EZ-EMC Tonscend Power Sensor 14. 15. Spectrum analyzer Signal generator 16. Signal Generator 17. 18. Shielded room Agilent Agilent Agilent Agilent Shiel Hong EMC051845 SE 83051A JY3120-B Version E9300A N9020A N5182A 83630A 4*3*3 HKE-015 Dec. 27, 2018 1 Year HKE-016 Dec. 27, 2018 1 Year HKE-083 Dec. 27, 2018 N/A HKE-086 HKE-048 HKE-029 HKE-028 HKE-039 Dec. 27, 2018 1 Year Dec. 27, 2018 1 Year Dec. 27, 2018 1 Year Dec. 27, 2018 1 Year Dec. 27, 2018 3 Year Page 8 of 23 Report No.: HK1907231855-E 3. CONDUCTED EMISSIONS TEST 3.1 Conducted Power Line Emission Limit For unintentional device, according to 15.107(a) Line Conducted Emission Limits is as following
* Decreasing linearly with the logarithm of the frequency For intentional device, according to 15.207(a) Line Conducted Emission Limit is same as above table. 3.2 Test Setup 3.3 Test Procedure 1, The equipment was set up as per the test configuration to simulate typical actual usage per the users manual. The EUT is a tabletop system, a wooden table with a height of 0.8 meters is used and is placed on the ground plane as per ANSI C63.10. 2, Support equipment, if needed, was placed as per ANSI C63.10. 3, All I/O cables were positioned to simulate typical actual usage as per ANSI C63.10. 4, If a EUT received DC power from the USB Port of Notebook PC, the PCs adapter received AC120V/60Hz power through a Line Impedance Stabilization Network (LISN) which supplied power source and was grounded to the ground plane. 5, All support equipments received AC power from a second LISN, if any. 6, The EUT test program was started. Emissions were measured on each current carrying line of the EUT using a spectrum Analyzer / Receiver connected to the LISN powering the EUT. The LISN has two monitoring points: Line 1 (Hot Side) and Line 2 (Neutral Side). Two scans were taken: one with Line 1 connected to Analyzer / Receiver and Line 2 connected to a 50 ohm load; the second scan had Line 1 connected to a 50 ohm load and Line 2 connected to the Analyzer / Receiver. 7, Analyzer / Receiver scanned from 150 KHz to 30MHz for emissions in each of the test modes. 3.4 Test Result Not applicable for device which is DC Power supply. Page 9 of 23 Report No.: HK1907231855-E 4 RADIATED EMISSION TEST 4.1 Radiation Limit For unintentional device, according to 15.109(a), except for Class A digital devices, the field strength of radiated emissions from unintentional radiators at a distance of 3 meters shall not exceed the following values Frequency
(MHz) 30-88 88-216 216-960 Above 960 Radiated
(dBV/m) 40 43.5 46 54 Radiated
(V/m) 100 150 200 500 Distance
(Meters) 3 3 3 3 For intentional device, according to 15.209(a), the general requirement of field strength of radiated emissions from intentional radiators at a distance of 3 meters shall not exceed the above table. 4.2 Test Setup 1Radiated Emission Test-Up Frequency Below 30MHz 2Radiated Emission Test-Up Frequency 30MHz~1GHz Page 10 of 23 Report No.: HK1907231855-E 3Radiated Emission Test-Up Frequency Above 1GHz 4.3 Test Procedure 1. Below 1GHz measurement the EUT is placed on turntable which is 0.8m above ground plane. And above 1GHz measurement EUT was placed on low permittivity and low tangent turn table which is 1.5m above ground plane. 2. The turntable shall be rotated for 360 degrees to determine the position of maximum emission level. 3. EUT is set 3m away from the receiving antenna, which is varied from 1m to 4m to find out the highest 4. Maximum procedure was performed on the six highest emissions to ensure EUT compliance. 5. And also, each emission was to be maximized by changing the polarization of receiving antenna both emissions. horizontal and vertical. 6. Repeat above procedures until the measurements for all frequencies are complete. 7. The test frequency range from 9KHz to 25GHz per FCC PART 15.33(a). Note:
For battery operated equipment, the equipment tests shall be performed using a new battery. 4.4 Test Result PASS All the test modes completed for test. The worst case of Radiated Emission is CH 2446; the test data of this mode was reported. Page 11 of 23 Report No.: HK1907231855-E Below 1GHz Test Results:
Antenna polarity: H Remark: Transd = Cable lose + Antenna factor - Pre-amplifier; Margin = Limit Level Page 12 of 23 Report No.: HK1907231855-E Antenna polarity: V Remark: Transd = Cable lose + Antenna factor - Pre-amplifier; Margin = Limit Level Remark
(1) Measuring frequencies from 9 KHz to the 1 GHz, Radiated emission test from 9KHz to 30MHz was verified, and no any emission was found except system noise floor.
(2) * denotes emission frequency which appearing within the Restricted Bands specified in provision of 15.205, then the general radiated emission limits in 15.209 apply.
(3) The IF bandwidth of EMI Test Receiver between 30MHz to 1GHz was 120KHz, 1 MHz for measuring above 1 GHz, below 30MHz was 10KHz. Page 13 of 23 Report No.: HK1907231855-E Above 1 GHz Test Results:
CH Low (2446MHz) Horizontal:
Frequency Meter Reading Factor Emission Level Limits Margin
(MHz) 2446 2446 4892 4892 7338 7338
(dBV) 109.72 86.86 57.34 43.77 55.26 41.56
(dB)
-5.84
-5.84
-3.64
-3.64
-0.95
-0.95
(dBV/m)
(dBV/m) 103.88 81.02 53.7 40.13 54.31 40.61 114 94 74 54 74 54
(dB)
-10.12
-12.98
-20.3
-13.87
-19.69
-13.39 Remark: Factor = Antenna Factor + Cable Loss Pre-amplifier. Vertical:
Frequency Meter Reading Factor Emission Level Limits Margin
(MHz) 2446 2446 4892 4892 7338 7338
(dBV) 111.01 83.5 54.13 45.83 52.26 38.79
(dB)
-5.84
-5.84
-3.64
-3.64
-0.95
-0.95
(dBV/m)
(dBV/m) 105.17 77.66 50.49 42.19 51.31 37.84 114 94 74 54 74 54
(dB)
-8.83
-16.34
-23.51
-11.81
-22.69
-16.16 Remark: Factor = Antenna Factor + Cable Loss Pre-amplifier. Detector Type peak AVG peak AVG peak AVG Detector Type peak AVG peak AVG peak AVG Page 14 of 23 Report No.: HK1907231855-E CH Middle (2463MHz) Horizontal:
Frequency Meter Reading
(MHz) 2463 2463 4926 4926 7389 7389
(dBV) 108.95 80.64 50.8 42.43 52.23 38.75 Factor Emission Level Limits Margin
(dB)
-5.71
-5.71
-3.51
-3.51
-0.82
-0.82
(dBV/m)
(dBV/m) 103.24 74.93 47.29 38.92 51.41 37.93 114 94 74 54 74 54
(dB)
-10.76
-19.07
-26.71
-15.08
-22.59
-16.07 Remark: Factor = Antenna Factor + Cable Loss Pre-amplifier. Vertical:
Frequency Meter Reading
(MHz) 2463 2463 4926 4926 7389 7389
(dBV) 104.89 84.62 55.28 43.87 52.2 40.73 Factor Emission Level Limits Margin
(dB)
-5.71
-5.71
-3.51
-3.51
-0.82
-0.82
(dBV/m)
(dBV/m) 99.18 78.91 51.77 40.36 51.38 39.91 114 94 74 54 74 54
(dB)
-14.82
-15.09
-22.23
-13.64
-22.62
-14.09 Remark: Factor = Antenna Factor + Cable Loss Pre-amplifier. Detector Type peak AVG peak AVG peak AVG Detector Type peak AVG peak AVG peak AVG Page 15 of 23 Report No.: HK1907231855-E CH High (2481MHz) Horizontal:
Frequency Meter Reading Factor Emission Level Limits Margin
(MHz) 2481 2481 4962 4962 7443 7443
(dBV) 105.77 82.86 52.71 41.69 53.25 36.51
(dB)
-5.65
-5.65
-3.43
-3.43
-0.75
-0.75
(dBV/m)
(dBV/m) 100.12 77.21 49.28 38.26 52.5 35.76 114 94 74 54 74 54 Remark: Factor = Antenna Factor + Cable Loss Pre-amplifier. Vertical:
Frequency Meter Reading Factor Emission Level Limits
(MHz) 2481 2481 4962 4962 7443 7443
(dBV) 105.14 82.52 52.35 44.93 55.65 37.95
(dB)
-5.65
-5.65
-3.43
-3.43
-0.75
-0.75
(dBV/m)
(dBV/m) 99.49 76.87 48.92 41.5 54.9 37.2 114 94 74 54 74 54
(dB)
-13.88
-16.79
-24.72
-15.74
-21.5
-18.24 Margin
(dB)
-14.51
-17.13
-25.08
-12.5
-19.1
-16.8 Detector Type peak AVG peak AVG peak AVG Detector Type peak AVG peak AVG peak AVG Remark: Factor = Antenna Factor + Cable Loss Pre-amplifier. Remark
(1) Measuring frequencies from 1 GHz to the 25 GHz
(2) F denotes fundamental frequency; H denotes spurious frequency. E denotes band edge frequency.
(3) * denotes emission frequency which appearing within the Restricted Bands specified in provision of 15.205, then the general radiated emission limits in 15.209 apply.
(4) Data of measurement within this frequency range shown --- in the table above means the reading of emissions are attenuated more than 20dB below the permissible limits or the field strength is too small to be measured.
(5) The IF bandwidth of EMI Test Receiver between 30MHz to 1GHz was 120KHz, 1 MHz for measuring above 1 GHz, below 30MHz was 10KHz. 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. 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.
(6) When the test results of Peak Detected below the limits of Average Detected, the Average Detected is not need completed. For example: Top Channel at Fundamental 73.16dBuV/m(PK Value) <93.98(AV Limit), at harmonic 53.20 dBuV/m(PK Value) <54 dBuV/m(AV Limit), the Average Detected not need to completed.
(7)All modes of operation were investigated and the worst-case emissions are reported. Page 16 of 23 Report No.: HK1907231855-E 5 BAND EDGE 5.1 Limits FCC PART 15.249(d) Emissions radiated outside of the specified frequency bands, except for harmonics, shall be attenuated by at least 50 dB below the level of the fundamental or to the general radiated emission limits in 15.209, whichever is the lesser attenuation. 5.2 Test Procedure The band edge compliance of RF radiated emission should be measured by following the guidance in ANSI C63.10 with respect to maximizing the emission by rotating the EUT, measuring the emission while the EUT is situated in three orthogonal planes (if appropriate), adjusting the measurement antenna height and polarization etc. Set RBW to 100KHz and VBM to 300KHz to measure the peak field strength and set RBW to 1MHz and VBW to 10Hz to measure the average radiated field strength.The conducted RF band edge was measured by using a spectrum analyzer. Set span wide enough to capture the highest in-band emission and the emission at the band edge. Set RBW to 100 KHz and VBW to 300 KHz, to measure the conducted peak band edge. Page 17 of 23 Report No.: HK1907231855-E 5.3 Test Result PASS Radiated Band Edge Test:
Operation Mode: TX CH Low (2446MHz) Horizontal (Worst case) Frequency Meter Reading Factor Emission Level Limits
(MHz) 2310 2310 2390 2390 2400 2400
(dBV) 57.67
/
53.03
/
51.76
/
(dB)
-5.81
-5.81
-5.84
-5.84
-5.84
-5.84
(dBV/m)
(dBV/m) 51.86
/
47.19
/
45.92
/
74 54 74 54 74 54 Remark: Factor = Antenna Factor + Cable Loss Pre-amplifier. Vertical:
Frequency Meter Reading Factor Emission Level Limits
(MHz) 2310 2310 2390 2390 2400 2400
(dBV) 55.46
/
52.67
/
55.45
/
(dB)
-5.81
-5.81
-5.84
-5.84
-5.84
-5.84
(dBV/m)
(dBV/m) 49.65
/
46.83
/
49.61
/
74 54 74 54 74 54 Remark: Factor = Antenna Factor + Cable Loss Pre-amplifier. Margin
(dB)
-22.14
/
-26.81
/
-28.08
/
Margin
(dB)
-24.35
/
-27.17
/
-24.39
/
Detector Type peak AVG peak AVG peak AVG Detector Type peak AVG peak AVG peak AVG Page 18 of 23 Report No.: HK1907231855-E Operation Mode: TX CH High (2481MHz) Horizontal (Worst case) Frequency Reading Result Factor Emission Level Limits
(MHz) 2483.50 2483.50 2500.00 2500.00
(dBV) 56.41
/
53.92
/
(dB)
-5.65
-5.65
-5.65
-5.65
(dBV/m)
(dBV/m) 50.76
/
48.27
/
74 54 74 54 Remark: Factor = Antenna Factor + Cable Loss Pre-amplifier. Vertical:
Frequency Reading Result Factor Emission Level Limits
(MHz) 2483.50 2483.50 2500.00 2500.00
(dBV) 56.31
/
52.82
/
(dB)
-5.65
-5.65
-5.65
-5.65
(dBV/m)
(dBV/m) 50.66
/
47.17
/
74 54 74 54 Remark: Factor = Antenna Factor + Cable Loss Pre-amplifier. Margin
(dB)
-23.24
/
-25.73
/
Margin
(dB)
-23.34
/
-26.83
/
Detector Type peak AVG peak AVG Detector Type peak AVG peak AVG Remark: All the other emissions not reported were too low to read and deemed to comply with FCC limit. Page 19 of 23 Report No.: HK1907231855-E 6 OCCUPIED BANDWIDTH MEASUREMENT 6.1 Test Setup Same as Radiated Emission Measurement 6.2 Test Procedure 1. The EUT was placed on a turn table which is 0.8m above ground plane. 2. Set EUT as normal operation. 3. Based on ANSI C63.10 section 6.9.2: RBW= 30KHz. VBW= 100 KHz, Span=4MHz. 4. The useful radiated emission from the EUT was detected by the spectrum analyser with peak detector. 6.3 Measurement Equipment Used Same as Radiated Emission Measurement 6.4 Test Result PASS Frequency 2446 MHz 2463 MHz 2481 MHz CH: 2446MHz 20dB Bandwidth
(MHz) 0.8271 0.8278 0.8277 Result PASS PASS PASS Page 20 of 23 Report No.: HK1907231855-E CH: 2463MHz CH: 2481MHz Page 21 of 23 Report No.: HK1907231855-E 7 ANTENNA REQUIREMENT Standard Applicable For intentional device, according to FCC 47 CFR 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. Antenna Connected Construction The antenna used in this product is a internal Antenna, The directional gains of antenna used for transmitting is1dBi. BT ANTENNA Page 22 of 23 Report No.: HK1907231855-E 8 PHOTOGRAPH OF TEST 8.1 Radiated Emission Page 23 of 23 Report No.: HK1907231855-E 9 PHOTOS OF THE EUT Reference to the reporter : ANNEX A of external photos and ANNEX B of internal photos
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