GetAttachment .pdf


Nom original: GetAttachment.pdf
Titre: Federal Communications Commission
Auteur: Tim Harrington

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4/23/2012

Federal Communications Commission
Office of Engineering and Technology
Laboratory Division
SAR Listings on Equipment Authorization Grants
This document provides guidance for Telecommunication Certification Bodies (TCBs) for uniform listings of
specific absorption rate (SAR) numbers in the comments field of grants of certification. For FCC IDs consisting
of multiple FCC Form 731 applications (i.e., multiple equipment classes, and/or permissive change filings), each
Form 731 may list different stand-alone SAR numbers, as described in the applicable provisions. Please contact
FCC Laboratory concerning other guidance for any devices where listing variations might apply.
1) SAR listing general provisions for portable devices with reported SAR results
a) When multiple frequency bands and wireless modes are considered, the highest reported SAR for each of
the evaluated operating configurations and exposure conditions (head, body-worn accessories, product
specific, simultaneous transmission, extremity, etc.) across the frequency bands and wireless modes must
be identified and listed within each equipment class (e.g., PCE, DTS).
b) Numeric values used for SAR listings on grants should be rounded to two decimal places. Grant listings
should use the less-than symbol for all values less than 0.10 W/kg; for example, use “The highest reported
SAR value is < 0.10 W/kg” for any SAR of 0.09 W/kg or less after rounding.
c) Class II permissive change filings should list the highest SAR values across all filings under an FCC ID,
within each equipment class (e.g., PCE, DTS).
d) In cases where simultaneous transmission conditions apply, SAR exclusions (eligibility determined by
reported stand-alone SAR) or volume scan SAR measurements are applied separately, for the various
operating configurations, exposure conditions, and transmitting mode combinations. The single highest
simultaneous transmission SAR across all combinations of simultaneous transmission, operating
configurations, exposure conditions, transmitting modes, and equipment classes should be listed on the
grant, per the following guidelines.
i) For simultaneous transmitting antennas with exclusions based on the sum of the stand-alone 1-g SAR
values, use the highest sum result.
ii) For simultaneous transmitting antennas with exclusions based on SAR to peak location separation
ratio calculations, use the highest stand-alone SAR as was used in the calculations.
iii) For simultaneous transmitting antennas with volume scan SAR measurement, use the highest
measured result.

690783 D01 SAR Listings on Grants v01r01

1

4/23/2012
2) SAR listing provisions for specific device operating configurations and exposure conditions
a) Handsets generally require SAR evaluations for head exposures. For most handsets with an audio headset
output or Bluetooth transmitter, body-worn accessory SAR is required. In addition, many handsets have
other product specific functions such as personal wireless router capability (hotspot mode) that require
additional SAR measurements. In general, there are four types of SAR numbers that will be listed on the
grant of certification of a handset within each equipment class. 1 The SAR numbers should be listed as
follows:
• The highest reported SAR values for head, body-worn accessory, product specific (wireless router),
and simultaneous transmission conditions are #.## W/kg, #.## W/kg, #.## W/kg, and #.## W/kg,
respectively.
b) When a single exposure condition (head, body, or product specific) applies for a device, the highest SAR
number should be listed without the exposure condition. Also, there may be other devices, such as a
Bluetooth headset or helmet-mounted device, where only head SAR is measured. For other devices that
do not operate next to the head or do not use body-worn accessories, head and body-worn accessory SAR
does not apply; SAR for these other devices is typically measured using body liquid in setups intended to
cover a combination of exposure and use conditions. The SAR numbers for these cases should be listed as
follows:
• For devices which have only simultaneous transmission use modes – The highest reported SAR value
is #.## W/kg
• For devices where stand-alone and simultaneous transmission use conditions apply – The highest
reported SAR values for stand-alone and simultaneous transmission conditions are #.## W/kg and
#.## W/kg, respectively.
c) In situations where extremity SAR is required, either with or without other SAR requirements (head,
body-worn accessories, product specific or simultaneous transmission, etc.), the extremity SAR must also
be listed. Examples of how the SAR number for this type of device should be listed are as follows:
• The highest reported SAR values for head, body-worn accessory, product specific, simultaneous
transmission, and extremity (hand) use conditions are #.## W/kg, #.## W/kg, #.## W/kg, #.## W/kg
and #.## W/kg, respectively.
• The highest reported SAR value for the device and extremity (wrist) use conditions are #.## W/kg
and #.## W/kg, respectively.
• The highest reported extremity (ankle) SAR value is #.## W/kg.
d) Push-to-talk transmitters typically require body-worn accessory SAR, and are also tested for held to face
conditions using a flat phantom with head tissue-equivalent liquid; in this case, for consistency the
highest SAR values across the device frequency bands are listed on the grant as head (not face) and bodyworn accessory, similarly as done for handsets.

1

EXAMPLE 1 – a) head: PCE 1 W/kg, DTS 0.58 W/kg; sum-SAR = 1.58 W/kg;
b) body-worn accessory: PCE 1 W/kg, DTS 0.57 W/kg; sum-SAR = 1.57 W/kg;
c) highest SAR across exposure conditions = 1.58 W/kg = grant listing.
EXAMPLE 2 – a) head: PCE 1 W/kg, DTS 0.58 W/kg; sum-SAR = 1.58 W/kg;
b) body-worn accessory: PCE 1 W/kg, DTS 0.61 W/kg; sum-SAR = 1.61 W/kg; SPLSR = 0.29;
c) highest SAR across exposure conditions = 1.58 W/kg = grant listing.
EXAMPLE 3 – a) head: PCE 1 W/kg, DTS 0.56 W/kg; sum-SAR = 1.56 W/kg;
b) body-worn accessory: PCE 1 W/kg, DTS 0.61 W/kg; sum-SAR = 1.61 W/kg; SPLSR = 0.31; volume-scan SAR = 1.57 W/kg;
c) highest SAR across exposure conditions = 1.57 W/kg = grant listing.

690783 D01 SAR Listings on Grants v01r01

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