RF Exposure Requirements

1.1 General Information

Client Information

Applicant: Shenzhen Qiyue Optronics Company Limited

Address of applicant: Flat3, Tower 3, Excellence Meilin Center Plaza, Zhongkang Road 128, Shangmeilin, Futian District, Shenzhen, China

Manufacturer: SHENZHEN QIYUE OPTRONICS COMPANY LIMITED BRANCH

Address of manufacturer: A/B/C/D Building, Xitian Industrial Park, Dashuikeng Community, Guanlan Street, Longhua New District, Shenzhen City, China

General Description of EUT:

• Product Name: 32" HD LED TV
• Trade Name: KC
• Model No.: KC3225AO
• Adding Model(s): 32N115_20-A-S, XXXXXXXX32XXXXXXX(Where "X" can be any alphanumeric of A-Z or 0-9 or blank or -, indicates different client)
• Rated Voltage: AC 120V
• Battery Capacity: /
• FCC ID: XOM-KC3225AO
• Equipment Type: Mobile device

Technical Characteristics of EUT: Wi-Fi(2.4GHz)

1.2 RF Exposure Exemption

According to §1.1307(b)(3) and KDB 447498 D04 Interim General RF Exposure Guidance v01, system operating under the provisions of this section shall be operating in a manner that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure.

Option A: FCC Rule Part 1.1307 (b)(3)(i)(A)

The available maximum time-averaged power is no more than 1mW, regardless of separation distance.

Option B: FCC Rule Part 1.1307 (b)(3)(i)(B)

The available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold Pth (mW) described by the following formula:

Pth (mW) is a piecewise function:

• If d ≤ 20 cm, Pth (mW) = ERP_{20 cm} * (d/20 cm)^x
• If 20 cm < d ≤ 40 cm, Pth (mW) = ERP_{20 cm}

Where x = -log₁₀(60 / (ERP_{20 cm} * √f)) and f is in GHz.

ERP_{20 cm} (mW) is a piecewise function:

• If 0.3 GHz ≤ f < 1.5 GHz, ERP_{20 cm} (mW) = 2040f
• If 1.5 GHz ≤ f ≤ 6 GHz, ERP_{20 cm} (mW) = 3060

d = the separation distance (cm).

Option C: FCC Rule Part 1.1307 (b)(3)(i)(C)

The minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. R must be at least λ/2π, where λ is the free-space operating wavelength in meters.

Single RF Sources Subject to Routine Environmental Evaluation

1.3 Calculated Result

For Multiple RF sources: FCC Rule Part 1.1307(b)(3)(ii):

(A) The available maximum time-averaged power of each source is no more than 1 mW and there is a separation distance of two centimeters between any portion of a radiating structure operating and the nearest portion of any other radiating structure in the same device, except if the sum of multiple sources is less than 1 mW during the time-averaging period, in which case they may be treated as a single source (separation is not required).

(B) In the case of fixed RF sources operating in the same time-averaging period, or of multiple mobile or portable RF sources within a device operating in the same time averaging period, if the sum of the fractional contributions to the applicable thresholds is less than or equal to 1 as indicated in the following equation:

∑_i=1^c (P_i / P_th,i) + ∑_j=1^c (ERP_j / ERP_th,j) + ∑_k=1^c (Evaluated_k / Exposure Limit_k) ≤ 1

1. Time-Averaged Power = Output Power * Duty Cycle; ERP = Time-Averaged Power + Antenna gain - 2.15dB
2. Option A, B and C refers as clause 1.2.
3. For option B, Max (time-averaged power, effective radiated power (ERP)) converts to Max. Power. For option C, ERP converts to Max. Power.
4. For option B, Pth (mW) converts to Exposure Limit (mW); For option C, ERP (W) converts to Exposure Limit (mW).
5. Ratio = Tune-Up ERP (mW) / Exposure Limit (mW)

Mode for Simultaneous Multi-band Transmission:

Result: Pass