2ACWITC55CX400LCD TV

SCS-F18: Project and Product Certification Representative Authorization Letter Page 1 of 2 Rev 5.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Project and Product Certification Representative Authorization Letter Reason for Amendment (current / obsolete) Revision History Approved Date From To Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Revised wording (obsolete) 1.0 2.0 Sept–25-2007 Updated company template (obsolete) 2.0 3.0 Jan-31-2012 Updated letter information (obsolete) 3.0 4.0 May-23-2014 Added FCC ID field (current) 4.0 5.0 Sept 16 2014 SCS-F18: Project and Product Certification Representative Authorization Letter Page 2 of 2 Rev 5.0 Shenyang Tongfang Multimedia Technology Co., Limited (2015-09-24) To: SIEMIC, INC. 775 Montague Expressway, Milpitas, CA 95035 USA Dear Sir/Madam, Re: Product Certification Representative Authorization Letter We, Shenyang Tongfang Multimedia Technology Co., Limited hereby authorize SIEMIC, Inc. to act as a Certification Body for certifying for the following project(s): Product: LCD TV M/N: TC-55CX400, TC-55CX400U, TC-55CX420U, TC-55CX420 FCC ID: 2ACWITC55CX400 Sincerely, Yu Li Engineer Shenyang Tongfang Multimedia Technology Co., Limited No.10 Nanping East Road Hunnan New District Shenyang, Liaoning Province P.R .China

SCS-F19: Confidentiality Request Letter Page 1 of 2 Rev 3.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Confidentiality Request Letter Reason for Amendment (current / obsolete) Revision History Approved Date From To Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Adding CFR 2.459 (obsolete) 1.0 2.0 August – 11 - 2008 Updated company template & Added text box (current) 2.0 3.0 Jan-31-2012 SCS-F19: Confidentiality Request Letter Page 2 of 2 Rev 3.0 Shenyang Tongfang Multimedia Technology Co., Limited (2015-9-24) To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subject: Permanent Confidentiality Request for FCC ID: 2ACWITC55CX400 We hereby request confidential treatment of information accompanying this application as outlined below: - Block Diagram - Schematics - Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 & 0.459 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Yu Li Engineer Shenyang Tongfang Multimedia Technology Co., Limited No.10 Nanping East Road Hunnan New District Shenyang, Liaoning Province P.R .China

Shenyang Tongfang Multimedia Technology Co., Limited WIFI Channel 12 & 13 Declaration Letter To whom it may concern : We have declared below featured for FCC equipment authorization in regard to 802.11b/g/n channel 12 & 13 operating capability for FCC ID: 2ACWITC55CX400 Please check Product hardware does not have the capability to operate on channel 12 & 13 Product hardware has the capability to operate on channel 12 & 13. However , these 2 channels will be disabled via software and user will not able to enable these 2 channels Product hardware has the capability to operate on channel 12 & 13. And meeting KDB 594280 D01 requirement. Pls explain detail here. Others Pls explain detail here. Yu Li Engineer Shenyang Tongfang Multimedia Technology Co., Limited No.10 Nanping East Road HunNan New District Shenyang, LiaoNing Province P.R .China Telephone: 86-755-33010881 E-mail: [email protected]

Declaration on model difference Page 1 of 1 We the undersigned hereby confirm that these models are identical, and all models have the same RF module and antenna, except for decorative parts in front panels, color of enclosures and design of signal input/output terminals in secondary circuits. „ Productio n name Trade name FCC ID INPUT Model no. LCD TV THTF, Fluid, Westinghouse, Seiki, Element, Panasonic 2ACWITC55CX400 AC 100- 240V, 50/60Hz OR 120V~, 60Hz, 190W TC-55CX400, TC-55CX400U, TC-55CX420U, TC-55CX420 Confirmed by: Yu Li Engineer 2015-09-24 Shenyang Tongfang Multimedia Technology Co., Limited No.10 Nanping East Road Hunnan New District Shenyang, Liaoning Province P.R .China

S/N: 80 60

Label Location on EUT

Antenna

RF EXPOSURE EVALUATION According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency(RF) Radiation as specified in §1.1307(b) FCC ID2ACWITC55CX400 EUT Specification EUT LCD TV Frequency band (Operating) WLAN: 2.412GHz ~ 2.462GHz WLAN: 5.18GHz ~ 5.32GHz / 5.50GHz ~ 5.70GHz WLAN: 5.745GHz ~ 5825GHz Others Device category Portable (<20cm separation) Mobile (>20cm separation) Others ___ Exposure classification Occupational/Controlled exposure (S = 5mW/cm2) General Population/Uncontrolled exposure (S=1mW/cm2) Antenna diversity Single antenna Multiple antennas Tx diversity Rx diversity Tx/Rx diversity Max. output power 13.51dBm for 802.11b; 13.02dBm for 802.11g; 13.01Bm for 802.11n(HT20); 13.00dBm for 802.11n(HT40); Antenna gain (Max) 2.0dBi ( for per antenna port Max) 5.01dBi for MIMO(Ant1+Ant2 Directional Gain) Evaluation applied MPE Evaluation SAR Evaluation Limits for Maximum Permissible Exposure(MPE) Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density(mW/cm 2 ) Average Time (A) Limits for Occupational/Control Exposures 300-1500 -- -- F/300 6 1500-100000 -- -- 5 6 (B) Limits for General Population/Uncontrol Exposures 300-1500 -- -- F/1500 6 1500-100000 -- -- 1 30 Friis transmission formula: Pd=(Pout*G)\(4*pi*R2) Where Pd= Power density in mW/cm 2 , Pout=output power to antenna in Mw G= gain of antenna in linear scale, Pi=3.1416 R= distance between observation point and center of the radiator in cm Pd the limit of MPE, 1mW/cm2. If we know the maximum gain of the antenna and total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. Measurement Result Operation Mode Channel Number Channel Frequency (MHz) Measurement Level (dBm) Limit (dBm) Verdict Ant1 Ant2 Sum 802.11b 1 2412 12.62 11.72-- 30 PASS 6 2437 12.98 11.97-- 30 PASS 11 2462 13.51 12.58-- 30 PASS 802.11g 1 2412 11.78 10.83-- 30 PASS 6 2437 12.01 10.98-- 30 PASS 11 2462 13.02 11.62-- 30 PASS 802.11n (HT20) 1 2412 9.62 9.72 12.68 30 PASS 6 2437 9.98 9.97 12.99 30 PASS 11 2462 10.51 9.42 13.01 30 PASS 802.11n (HT40) 3 2422 9.82 9.56 12.70 30 PASS 6 2437 10.03 9.51 12.79 30 PASS 9 2452 10.51 9.39 13.00 30 PASS Antenna 1 Operating Mode Test Channel Tune up tolerance (dBm) Max tune up conducted power(dBm) Output Peak power (mW) Ant. Gain (dBi) Ant. Gain (nume ric) Power density at 20cm (mW/ cm 2 ) Power density Limits (mW/cm 2 ) 802.11b 1 131 14 25.119 2 1.585 0.007920 1 6 131 14 25.119 2 1.585 0.007920 1 11 141 15 31.623 2 1.585 0.009971 1 802.11g 1 121 13 19.950 2 1.585 0.006291 1 6 121 13 19.9502 1.585 0.006291 1 11 131 14 25.120 2 1.585 0.007920 1 802.11n (H20) 1 101 11 12.590 2 1.585 0.003969 1 6 101 11 12.590 2 1.585 0.003969 1 11 111 12 15.8502 1.585 0.004997 1 802.11n (H40) 3 101 11 12.590 2 1.585 0.003969 1 6 101 11 12.590 2 1.585 0.003969 1 9 111 12 15.850 2 1.585 0.004997 1 Antenna 2: Operating Mode Test Channel Tune up tolerance (dBm) Max tune up conducted power(dBm) Output Peak power (mW) Ant. Gain (dBi) Ant. Gain (numeric) Power density at 20cm (mW/ cm 2 ) Power density Limits (mW/cm 2 ) 802.11b 1 121 13 19.953 2 1.585 0.006291 1 6 121 13 19.953 2 1.585 0.006291 1 11 131 14 25.119 2 1.585 0.007920 1 802.11g 1 111 12 15.850 2 1.585 0.004997 1 6 111 12 15.850 2 1.585 0.004997 1 11 121 13 19.950 2 1.585 0.006291 1 802.11n (HT20) 1 101 11 12.590 2 1.585 0.003969 1 6 101 11 12.590 2 1.585 0.003969 1 11 101 11 12.590 2 1.585 0.003969 1 802.11n (HT40) 3 101 11 12.590 2 1.585 0.003969 1 6 101 11 12.590 2 1.585 0.003969 1 9 101 11 12.590 2 1.585 0.003969 1 MPE Result: Operation Mode Channel Number Channel Frequency (MHz) Power density at 20cm (mW/ cm 2 ) Power density Limits (mW/cm 2 ) Verdict Ant1 Ant2 Sum 802.11b 1 2412 0.007920 0.006291 -- 1 PASS 6 2437 0.007920 0.006291 -- 1 PASS 11 2462 0.009971 0.007920 -- 1 PASS 802.11g 1 2412 0.006291 0.004997 -- 1 PASS 6 2437 0.006291 0.004997 -- 1 PASS 11 2462 0.007920 0.006291 -- 1 PASS 802.11n (HT20) 1 2412 0.003969 0.003969 1 PASS 6 2437 0.003969 0.003969 0.007938 1 PASS 11 2462 0.004997 0.003969 0.007938 1 PASS 802.11n (HT40) 3 2422 0.003969 0.003969 0.008966 1 PASS 6 2437 0.003969 0.003969 0.007938 1 PASS 9 2452 0.004997 0.003969 0.007938 1 PASS Signature: Print: Sam Lv Title: Manager Date: 2015-10-27