Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC-LH181203325E FCC Part 15C Test Report FCC ID:2ASEY-KM002 Product Name: DREVO BladeMaster PRO mechanical keyboard Trademark: DREVO DREVO BladeMaster DREVO Calibur, DREVO Excalibur, DREVO Typer, DREVO Tyrfing, DREVO Gramr, DREVO Joyeuse, Model Number: DREVO Durendal, DREVO Aegis, DREVO Nix, DREVO Seer, DREVO Enigma, Drevo Unicorn, DREVO Tizona, DREVO Naga, DREVO Fortress Prepared For: Zhengzhou Fanshi Network Technology Co., Ltd. 606 Building G, No.10 Heguang St., Zhengdong New District, Address: Zhengzhou, Henan, China Manufacturer: Zhengzhou Fanshi Network Technology Co., Ltd. 606 Building G, No.10 Heguang St., Zhengdong New District, Address: Zhengzhou, Henan, China Prepared By: Shenzhen BCTC Testing Co., Ltd. BCTC Building & 1-2F, East of B Building, Pengzhou Industrial, Address: Fuyuan 1st Road, Qiaotou Community, Fuyong Street, Bao’an District, Shenzhen, China Sample tested Date: Dec. 14, 2018 – Jan. 28, 2019 Issue Date: Jan. 28, 2019 Report No.: BCTC-LH181203325E FCC Part15.247 Test Standards ANSI C63.10-2013 Prepared by(Engineer): Leke Xie Reviewer(Supervisor): Eric Yang Approved(Manager): Zero Zhou FCC Report Tel: 400-788-9558 0755-33019988 Web:Http://www.bctc-lab.com.cn Page1 of 41 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC-LH181203325E This device described above has been tested by BCTC, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. The test report is effective only with both signature and specialized stamp.This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full.The tested sample(s) and the sample information are provided by the client. FCC Report Tel: 400-788-9558 0755-33019988 Web:Http://www.bctc-lab.com.cn Page 2 of 41 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC-LH181203325E Page Table of Contents 1 . VERSION 5 2 . SUMMARY OF TEST RESULTS 5 2.1 TEST FACILITY 6 2.2 MEASUREMENT UNCERTAINTY 6 3 . GENERAL INFORMATION 7 3.1 GENERAL DESCRIPTION OF EUT 7 3.2 DESCRIPTION OF TEST MODES 8 3.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 8 3.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 9 3.5 EQUIPMENTS LIST FOR ALL TEST ITEMS 10 4 . EMC EMISSION TEST 11 4.1 CONDUCTED EMISSION MEASUREMENT 11 4.1.1 POWER LINE CONDUCTED EMISSION LIMITS 11 4.1.2 TEST PROCEDURE 11 4.1.3 DEVIATION FROM TEST STANDARD 11 4.1.4 TEST SETUP 12 4.1.5 EUT OPERATING CONDITIONS 12 4.1.6 TEST RESULTS 13 4.2 RADIATED EMISSION MEASUREMENT 15 4.2.1 RADIATED EMISSION LIMITS 15 4.2.2 TEST PROCEDURE 16 4.2.3 DEVIATION FROM TEST STANDARD 16 4.2.4 TEST SETUP 16 4.2.5 EUT OPERATING CONDITIONS 18 4.2.6 TEST RESULTS (BETWEEN 9KHZ – 30 MHZ) 19 4.2.7 TEST RESULTS (BETWEEN 30MHZ – 1GHZ) 20 3.3 RADIATED BAND EMISSION MEASUREMENT 23 3.3.1 TEST REQUIREMENT: 23 3.3.2 TEST PROCEDURE 23 3.3.3 DEVIATION FROM TEST STANDARD 24 3.3.4 TEST SETUP 24 3.3.5 EUT OPERATING CONDITIONS 24 5 . POWER SPECTRAL DENSITY TEST 26 5.1 APPLIED PROCEDURES / LIMIT 26 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http://www.bctc-lab.com.cn Page 3 of 41 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC-LH181203325E Page Table of Contents 5.1.1 TEST PROCEDURE 26 5.1.2 DEVIATION FROM STANDARD 26 5.1.3 TEST SETUP 26 5.1.4 EUT OPERATION CONDITIONS 26 5.1.5 TEST RESULTS 27 6 . BANDWIDTH TEST 29 6.1 APPLIED PROCEDURES / LIMIT 29 6.1.1 TEST PROCEDURE 29 6.1.2 DEVIATION FROM STANDARD 29 6.1.3 TEST SETUP 29 6.1.4 EUT OPERATION CONDITIONS 29 6.1.5 TEST RESULTS 30 7 . PEAK OUTPUT POWER TEST 32 7.1 APPLIED PROCEDURES / LIMIT 32 7.1.1 TEST PROCEDURE 32 7.1.2 DEVIATION FROM STANDARD 32 7.1.3 TEST SETUP 32 7.1.4 EUT OPERATION CONDITIONS 32 7.1.5 TEST RESULTS 33 8 . 100 KHZ BANDWIDTH OF FREQUENCY BAND EDGE 34 7.1 APPLICABLE STANDARD 34 7.2 TEST PROCEDURE 34 7.3 DEVIATION FROM STANDARD 34 7.4 TEST SETUP 34 7.5 EUT OPERATION CONDITIONS 34 9 . ANTENNA REQUIREMENT 37 9.1 STANDARD REQUIREMENT 37 9.2 EUT ANTENNA 37 10 . EUT TEST PHOTO 38 11 . EUT PHOTO 40 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS FCC Report Tel: 400-788-9558 0755-33019988 Web:Http://www.bctc-lab.com.cn Page 4 of 41 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC-LH181203325E 1. VERSION Report No. Issue Date Description Approved BCTC-LH181203325E Jan. 28, 2019 Original Valid 2. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: RSS-247 Issue 2: February 2017 FCC Part15 (15.247) , Subpart C Standard Test Item Judgment Remark Section RSS-GEN 8.8 RSS-247 3.1 Conducted Emission PASS 15.207 RSS-247 5.2 (a) 6dB Bandwidth PASS 15.247 (a)(2) RSS-247 5.4 (b) Peak Output Power PASS 15.247 (b) RSS-247 5.5 Radiated Spurious Emission PASS 15.247 (c) RSS-247 5.2 (b) Power Spectral Density PASS 15.247 (d) RSS-247 5.5 Restricted Band of Operation PASS 15.205 RSS-Gen.6.7 Band Edge (Out of Band Emissions) PASS 15.203 RSS-GEN 8.8 RSS-247 3.1 Antenna Requirement PASS 15.207 NOTE: (1)” N/A” denotes test is not applicable in this Test Report FCC Report Tel: 400-788-9558 0755-33019988 Web:Http://www.bctc-lab.com.cn Page 5 of 41 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC-LH181203325E 2.1 TEST FACILITY Shenzhen BCTC Testing Co., Ltd. Add.: BCTC Building & 1-2F, East of B Building, Pengzhou Industrial, Fuyuan 1st Road, Qiaotou Community, Fuyong Street, Bao’an District, Shenzhen, China FCC Test Firm Registration Number: 712850 IC Registered No.: 23583 2.2 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 3m camber Radiated spurious 1 U=4.3dB emission(30MHz-1GHz) 3m chamber Radiated spurious 2 U=4.5dB emission(1GHz-18GHz) 3 3m chamber Radiated spurious emission(18GHz-40GHz) U=3.34dB 4 Conducted Adjacent channel power U=1.38dB 5 Conducted output power uncertainty Above 1G U=1.576dB 6 Conducted output power uncertainty below 1G U=1.28dB 7 humidity uncertainty U=5.3% 8 Temperature uncertainty U=0.59℃ 9 Radiated disturbance(30MHz-1000MHz) U=4.8dB 10 Radiated disturbance(1GHz-6GHz) U=4.9dB 11 Radiated disturbance(1GHz-18GHz) U=5.0dB FCC Report Tel: 400-788-9558 0755-33019988 Web:Http://www.bctc-lab.com.cn Page 6 of 41 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC-LH181203325E 3. GENERAL INFORMATION 3.1 GENERAL DESCRIPTION OF EUT Equipment DREVO BladeMaster PRO mechanical keyboard Trade Name DREVO DREVO BladeMaster DREVO Calibur, DREVO Excalibur, DREVO Typer, DREVO Tyrfing, DREVO Gramr, DREVO Joyeuse, Model Name DREVO Durendal, DREVO Aegis, DREVO Nix, DREVO Seer, DREVO Enigma, Drevo Unicorn, DREVO Tizona, DREVO Naga, DREVO Fortress Model Difference Only for different Model name. The EUT is a DREVO BladeMaster PRO mechanical keyboard Operation Frequency: 2402-2480 MHz Modulation Type: GFSK Number Of Channel 40CH Product Description Antenna Designation: Please see Note 3. 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 Please refer to the Note 2. Power Source DC 3.7V battey 2000mAh or DC 5V from adapter Connecting I/O Port(s) Please refer to the User's Manual Note: 1. For a more detailed features description, please refer to the manufacturer’s specifications or the User's Manual. FCC Report Tel: 400-788-9558 0755-33019988 Web:Http://www.bctc-lab.com.cn Page 7 of 41 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC-LH181203325E 2. Channel List Frequency Frequency Frequency Channel Channel Channel (MHz) (MHz) (MHz) 01 2402 11 2422 21 2442 02 2404 12 2424 22 2444 03 2406 13 2426 23 2446 ~ ~ ~ ~ ~ ~ 09 2418 19 2438 39 2478 10 2420 20 2440 40 2480 3. Table for Filed Antenna Ant. Brand Model Name Antenna Type Gain (dBi) NOTE 1 N/A N/A PCB Antenna 0 3.2 DESCRIPTION OF TEST MODES To investigate the maximum EMI emission characteristics generates from EUT, the test system was pre-scanning tested base on the consideration of following EUT operation mode or test configuration mode which possible have effect on EMI emission level. Each of these EUT operation mode(s) or test configuration mode(s) mentioned above was evaluated respectively. For All Mode Description Modulation Type Mode 1 CH01 Mode 2 CH20 GFSK Mode 3 CH40 Mode 4 Link mode(conducted emission and Radiated emission) Note: (1) The measurements are performed at the highest, middle, lowest available channels. (2) Fully-charged battery is used during the test 3.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED Conducted Emission Test FCC Report Tel: 400-788-9558 0755-33019988 Web:Http://www.bctc-lab.com.cn Page 8 of 41 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC-LH181203325E Radiated Spurious Emission Test 3.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) The EUT has been tested as an independent unit together with other necessary accessories or support units.