M8 wireless mouse RF Exposure Info EMC TRF Template Dongguan Lingjie Electronics & Technology Co., Ltd

Dongguan Lingjie Electronics & Technology Co., Ltd wireless mouse

Page 1 of M8 wireless mouse RF Exposure Info EMC TRF Template Dongguan Lingjie Electronics & Technology Co., Ltd
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RF Exposure evaluation
1.1. Applicable Standard
According to §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a
manner that ensures that the public is not exposed to radio frequency energy level in excess of the
Commission’s guidelines.
According to §1.1310 and §2.1093 RF exposure requirement
KDB447498 v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization
1.2. Requirement
According to KDB447498 D01 General RF Exposure Guidance v06 Section 4.3.1 Standalone SAR test
exclusion considerations: “Unless specifically required by the published RF exposure KDB procedures,
standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions,
by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion
Threshold condition, listed below, is satisfied. These test exclusion conditions are based on source-based
time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up
tolerance, and the minimum test separation distance required for the exposure conditions.22 The minimum
test separation distance is determined by the smallest distance from the antenna and radiating structures or
outer surface of the device, according to the host form factor, exposure conditions and platform requirements,
to any part of the body or extremity of a user or bystander (see 5) of section 4.1). To qualify for SAR test
exclusion, the test separation distances applied must be fully explained and justified by the operating
configurations and exposure conditions of the transmitter and applicable host platform requirements, typically
in the SAR measurement or SAR analysis report, according to the required published RF exposure KDB
procedures. When no other RF exposure testing or reporting is required, a statement of justification and
compliance must be included in the equipment approval, in lieu of the SAR report, to qualify for the SAR test
exclusion. When required, the device specific conditions described in the other published RF exposure KDB
procedures must be satisfied before applying these SAR test exclusion provisions; for example, handheld PTT
two-way radios, handsets, laptops & tablets etc.23 “
[(max. power of channel, including tune-up tolerance, mW)/ (min. test separation distance, mm)] · [√f (GHz)]
≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where:
• f (GHz) is the RF channel transmit frequency in GHz
• Power and distance are rounded to the nearest mW and mm before calculation
• The result is rounded to one decimal place for comparison
• 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below
The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for
transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5
mm, a distance of 5 mm according to 5) in section 4.1 is applied to determine SAR test exclusion.
1.3. Manufacturing tolerance
Target (dBm)
Tolerance ±(dB)
Channel 00
Channel 08
Channel 15
2. Evaluation Result
Evaluation Results
f (GHz)
RF output power
(including tune-up
SAR Test
SAR Test
3. Conclusion
The measurement results comply with the FCC Limit per 47 CFR 2.1093 for the uncontrolled RF Exposure
and SAR Exclusion Threshold per KDB 447498 v06, No SAR is required.
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Document ID4126358
Application IDJg8c5JrvhlOKVsQFTYqEMw==
Document DescriptionRF exposure info
Short Term ConfidentialNo
Permanent ConfidentialNo
Document TypeRF Exposure Info
Display FormatAdobe Acrobat PDF - pdf
Filesize7.04kB (88062 bits)
Date Submitted2019-01-02 00:00:00
Date Available2019-01-02 00:00:00
Creation Date2013-10-17 23:57:00
Producing SoftwareAspose.Words for .NET
Document Lastmod2019-01-02 17:28:01
Document TitleEMC TRF Template
Document CreatorMicrosoft Office Word
Document Author: eie

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