TA-1157 Multi-band GSM/WCDMA/LTE phone with Bluetooth, WLAN RF Exposure Info EMF2001001 HMD global Oy

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ANNEX I
Sensor Triggering Data Summary
1, Maximum transmit power reduce process follow below strategy when mobile connect network.
Headset
P-sensor
SAR sensor
TX Power reduce
Insert
Near
Near
Yes
Insert
Near
Far
No
Insert
Far
Near
Yes
Insert
Far
Far
No
Pull out
Near
Near
No
Pull out
Near
Far
No
Pull out
Far
Near
Yes
Pull out
Far
Far
No
2, Distance definition
P-sensor Detect
Near
Far
Distance Detected
<3cm
>=5cm
SAR Sensor Detect
Near
Far
rear
<=16mm
>16mm
front
<=12mm
>12mm
bottom
<=16mm
>16mm
top
Not Detect
Not Detect
right
Not Detect
Not Detect
left
Not Detect
Not Detect
3, Reduction and Bands
Band
DCS
Requirement
2、3、4 Slots
PCS
2、3、4 Slots
Conduct power
reduction
3.5dB
3dB
WB1
2dB
LTE B1
2.5dB
LTE B3
2dB
LTE B7
2dB
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According to the above description, this device was tested by the manufacturer to determine the
SAR sensor triggering distances for the rear and bottom edge of the device. The measured power
state within ±5mm of the triggering points (or until touching the phantom) is included for rear and
each applicable edge.
To ensure all production units are compliant it is necessary to test SAR at a distance 1mm less
than the smallest distance from the device and SAR phantom with the device at maximum output
power without power reduction.
We tested the power and got the different proximity sensor triggering distances for rear and bottom
edge. But the manufacturer has declared 16mm is the most conservative triggering distance for
main antenna. So base on the most conservative triggering distance of 16mm, additional SAR
measurements were required at 15mm from the highest SAR position between rear and bottom
edge of main antenna.
Rear
Moving device toward the phantom:
The power state
Distance [mm]
21
20
19
18
17
16
15
14
13
12
11
Main antenna
Normal
Normal
Normal
Normal
Normal
Low
Low
Low
Low
Low
Low
Moving device away from the phantom:
The power state
Distance [mm]
11
12
13
14
15
16
17
18
19
20
21
Main antenna
Low
Low
Low
Low
Low
Low
Normal
Normal
Normal
Normal
Normal
Bottom Edge
Moving device toward the phantom:
The power state
Distance [mm]
21
20
19
18
17
16
15
14
13
12
11
Main antenna
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Moving device away from the phantom:
The power state
Distance [mm]
11
12
13
14
15
16
17
18
19
20
21
Main antenna
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
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The influence of table tilt angles to proximity sensor triggering is determined by positioning each
edge that contains a transmitting antenna, perpendicular to the flat phantom, at the smallest sensor
triggering test distance by rotating the device around the edge next to the phantom in ≤ 10°
increments until the tablet is ±45°or more from the vertical position at 0°.
Re
ar
Body Phantom
45°
16mm
0°
Re
ar
45°
The rear evaluation for main antenna
Body Phantom
16mm
45°
Top edge
45°
0°
Top edge
The bottom edge evaluation for main antenna
Based on the above evaluation, we come to the conclusion that the sensor triggering is not released
and normal maximum output power is not restored within the ±45°range at the smallest sensor
triggering test distance declared by manufacturer.
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ANNEX J
Accreditation Certificate
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