Appendix F: Proximity Sensor Triggering Test

This appendix details the proximity sensor triggering test results for the device, as provided by the manufacturer. The tests were conducted according to KDB 616217 D04.

Proximity Sensor Triggering Distance (KDB 616217 D04 section 6.2)

Proximity sensor triggering distance testing was performed by assessing the EUT (Equipment Under Test) moving towards and away from the flat phantom. The shortest triggering distances were recorded for SAR assessment. Preliminary testing indicated that the tissue-equivalent medium for 1900MHz yielded the shortest triggering distance across different frequency bands, and this medium was used for formal testing.

Diagram Description: A diagram illustrating the proximity sensor test setup. It shows a 'Flat Phantom' above an 'EUT' (Equipment Under Test). An arrow points from the EUT to the phantom, labeled 'Trigger distance'.

Proximity Sensor Trigger Distance (mm)
Position	Bottom Face	Edge 1	Edge 4
Minimum	20 mm	16 mm	4 mm

Measured Power Levels

The following tables present the measured power levels in dBm for various communication technologies and configurations at different distances from the phantom. These measurements were performed under both Full Power and Reduced Power conditions as specified by KDB 616217.

Reduced Power Measurements (KDB 616217 6.2.4)

Measured power levels for reduced power configurations across various distances:

Measured Power [dBm] (Reduced Power)
Distance [mm]	41	38	37	35	34	32	31	29	28	26	25	23	22	19	16	13	10	7	4
GSM850	33.4	33.4	33.4	33.4	33.4	33.4	33.4	33.4	33.4	33.4	33.4	33.4	33.4	33.4	33.4	20.9	33.4	20.9	20.9
GSM1900	31.4	31.4	31.4	31.4	31.4	31.4	31.4	31.4	31.4	31.4	31.4	31.4	31.4	31.4	31.4	15.4	31.4	15.4	15.4
GPRS850 1Tx	33.3	33.3	33.3	33.3	33.3	33.3	33.3	33.3	33.3	33.3	33.3	33.3	33.3	33.3	33.3	20.8	33.3	20.8	20.8
GPRS850 2Tx	31.8	31.8	31.8	31.8	31.8	31.8	31.8	31.8	31.8	31.8	31.8	31.8	31.8	31.8	31.8	20.7	31.8	20.7	20.7
GPRS850 3Tx	29.7	29.7	29.7	29.7	29.7	29.7	29.7	29.7	29.7	29.7	29.7	29.7	29.7	29.7	29.7	20.6	29.7	20.6	20.6
GPRS850 4Tx	27.8	27.8	27.8	27.8	27.8	27.8	27.8	27.8	27.8	27.8	27.8	27.8	27.8	27.8	27.8	20.8	27.8	20.8	20.8
GPRS1900 1Tx	31.4	31.4	31.4	31.4	31.4	31.4	31.4	31.4	31.4	31.4	31.4	31.4	31.4	31.4	31.4	15.4	31.4	15.4	15.4
GPRS1900 2Tx	29.8	29.8	29.8	29.8	29.8	29.8	29.8	29.8	29.8	29.8	29.8	29.8	29.8	29.8	29.8	15.3	29.8	15.3	15.3
GPRS1900 3Tx	27.3	27.3	27.3	27.3	27.3	27.3	27.3	27.3	27.3	27.3	27.3	27.3	27.3	27.3	27.3	15.4	27.3	15.4	15.4
GPRS1900 4Tx	25.2	25.2	25.2	25.2	25.2	25.2	25.2	25.2	25.2	25.2	25.2	25.2	25.2	25.2	25.2	15.3	25.2	15.3	15.3
WCDMA 850	22.7	22.7	22.7	22.7	22.7	22.7	22.7	22.7	22.7	22.7	22.7	22.7	22.7	22.7	22.7	18.2	22.7	18.2	18.2
WCDMA1900	23.6	23.6	23.6	23.6	23.6	23.6	23.6	23.6	23.6	23.6	23.6	23.6	23.6	23.6	23.6	11.4	23.6	11.4	11.4
EDGE850 1TX	26.8	26.8	26.8	26.8	26.8	26.8	26.8	26.8	26.8	26.8	26.8	26.8	26.8	26.8	26.8	15.3	26.8	15.3	15.3
EDGE850 2TX	25.4	25.4	25.4	25.4	25.4	25.4	25.4	25.4	25.4	25.4	25.4	25.4	25.4	25.4	25.4	15.4	25.4	15.4	15.4
EDGE850 3TX	22.7	22.7	22.7	22.7	22.7	22.7	22.7	22.7	22.7	22.7	22.7	22.7	22.7	22.7	22.7	15.2	22.7	15.2	15.2
EDGE850 4TX	20.6	20.6	20.6	20.6	20.6	20.6	20.6	20.6	20.6	20.6	20.6	20.6	20.6	20.6	20.6	15.2	20.6	15.2	15.2
EDGE1900 1TX	26.7	26.7	26.7	26.7	26.7	26.7	26.7	26.7	26.7	26.7	26.7	26.7	26.7	26.7	26.7	12.7	26.7	12.7	12.7
EDGE1900 2TX	25.4	25.4	25.4	25.4	25.4	25.4	25.4	25.4	25.4	25.4	25.4	25.4	25.4	25.4	25.4	12.6	25.4	12.6	12.6
EDGE1900 3TX	22.3	22.3	22.3	22.3	22.3	22.3	22.3	22.3	22.3	22.3	22.3	22.3	22.3	22.3	22.3	12.5	22.3	12.5	12.5
EDGE1900 4TX	20.7	20.7	20.7	20.7	20.7	20.7	20.7	20.7	20.7	20.7	20.7	20.7	20.7	20.7	20.7	12.6	20.7	12.6	12.6
LTE B41	23.7	23.7	23.7	23.7	23.7	23.7	23.7	23.7	23.7	23.7	23.7	23.7	23.7	23.7	23.7	13.2	23.7	13.2	13.2

Full Power Measurements (KDB 616217 6.2.8)

Measured power levels for full power configurations across various distances:

Measured Power [dBm] (Full Power)
Distance [mm]	41	36	35	31	27	25	23	20	19	16	15	13	10	8	5	4	1	0
GSM850	33.4	33.4	33.4	33.4	33.4	33.4	33.4	20.9	20.9	20.9	20.9	33.4	20.9	20.9	20.9	20.9	33.4	33.4
GSM1900	31.4	31.4	31.4	31.4	31.4	31.4	31.4	15.4	15.4	15.4	15.4	31.4	15.4	15.4	15.4	15.4	31.4	31.4
GPRS850 1Tx	33.3	33.3	33.3	33.3	33.3	33.3	33.3	20.8	20.8	20.8	20.8	33.3	20.8	20.8	20.8	20.8	33.3	33.3
GPRS850 2Tx	31.8	31.8	31.8	31.8	31.8	31.8	31.8	20.7	20.7	20.7	20.7	31.8	20.7	20.7	20.7	20.7	31.8	31.8
GPRS850 3Tx	29.7	29.7	29.7	29.7	29.7	29.7	29.7	20.6	20.6	20.6	20.6	29.7	20.6	20.6	20.6	20.6	29.7	29.7
GPRS850 4Tx	27.8	27.8	27.8	27.8	27.8	27.8	27.8	20.8	20.8	20.8	20.8	27.8	20.8	20.8	20.8	20.8	27.8	27.8
GPRS1900 1Tx	31.4	31.4	31.4	31.4	31.4	31.4	31.4	15.4	15.4	15.4	15.4	31.4	15.4	15.4	15.4	15.4	31.4	31.4
GPRS1900 2Tx	29.8	29.8	29.8	29.8	29.8	29.8	29.8	15.3	15.3	15.3	15.3	29.8	15.3	15.3	15.3	15.3	29.8	29.8
GPRS1900 3Tx	27.3	27.3	27.3	27.3	27.3	27.3	27.3	15.4	15.4	15.4	15.4	27.3	15.4	15.4	15.4	15.4	27.3	27.3
GPRS1900 4Tx	25.2	25.2	25.2	25.2	25.2	25.2	25.2	15.3	15.3	15.3	15.3	25.2	15.3	15.3	15.3	15.3	25.2	25.2
WCDMA 850	22.7	22.7	22.7	22.7	22.7	22.7	22.7	18.2	18.2	18.2	18.2	22.7	18.2	18.2	18.2	18.2	22.7	22.7
WCDMA1900	23.6	23.6	23.6	23.6	23.6	23.6	23.6	11.4	11.4	11.4	11.4	23.6	11.4	11.4	11.4	11.4	23.6	23.6
EDGE850 1TX	26.8	26.8	26.8	26.8	26.8	26.8	26.8	15.3	15.3	15.3	15.3	26.8	15.3	15.3	15.3	15.3	26.8	26.8
EDGE850 2TX	25.4	25.4	25.4	25.4	25.4	25.4	25.4	15.4	15.4	15.4	15.4	25.4	15.4	15.4	15.4	15.4	25.4	25.4
EDGE850 3TX	22.7	22.7	22.7	22.7	22.7	22.7	22.7	15.2	15.2	15.2	15.2	22.7	15.2	15.2	15.2	15.2	22.7	22.7
EDGE850 4TX	20.6	20.6	20.6	20.6	20.6	20.6	20.6	15.2	15.2	15.2	15.2	20.6	15.2	15.2	15.2	15.2	20.6	20.6
EDGE1900 1TX	26.7	26.7	26.7	26.7	26.7	26.7	26.7	12.7	12.7	12.7	12.7	26.7	12.7	12.7	12.7	12.7	26.7	26.7
EDGE1900 2TX	25.4	25.4	25.4	25.4	25.4	25.4	25.4	12.6	12.6	12.6	12.6	25.4	12.6	12.6	12.6	12.6	25.4	25.4
EDGE1900 3TX	22.3	22.3	22.3	22.3	22.3	22.3	22.3	12.5	12.5	12.5	12.5	22.3	12.5	12.5	12.5	12.5	22.3	22.3
EDGE1900 4TX	20.7	20.7	20.7	20.7	20.7	20.7	20.7	12.6	12.6	12.6	12.6	20.7	12.6	12.6	12.6	12.6	20.7	20.7
LTE B41	23.7	23.7	23.7	23.7	23.7	23.7	23.7	13.2	13.2	13.2	13.2	23.7	13.2	13.2	13.2	13.2	23.7	23.7

Proximity Sensor Triggering Coverage (KDB 616217 D04 section 6.3)

If a sensor is spatially offset from the antenna(s), it is necessary to verify sensor triggering for conditions where the antenna is next to the user but the sensor is laterally further away to ensure sensor coverage is sufficient for reducing the power to maintain compliance. For p-sensor coverage testing, the device is moved and “along the direction of maximum antenna and sensor offset". However, this device uses a capacitive proximity sensor that is the same metallic component as the transmitting antenna to facilitate triggering in any conditions the user may use the device in proximity of the antenna. Therefore, no further sensor coverage assessments were required according to KDB 616217 D04 v016.3.

Tablet Tilt Angle Influences to Proximity Sensor Triggering (KDB 616217 D04 section 6.4)

The influence of table tilt angles to proximity sensor triggering was determined by positioning each tablet edge that contains a transmitting antenna, perpendicular to the flat phantom, at 16 mm separation for Edge 1 and 4 mm separation for Edge 4. The tablet was rotated around the edge next to the phantom in ≤ 10° increments until the tablet was ± 45° from the vertical position at 0°, and the maximum output power remained in the reduced mode.

Diagram Description: A diagram illustrating the tablet tilt angle influence on proximity sensor triggering. It shows a 'Flat Phantom' and an 'EUT' positioned at angles of +45° and -45° relative to the vertical. An arrow indicates 'Trigger distance'.

The Sensor Trigger Distance (mm)
Position	Edge 1	Edge 4
Minimum	16 mm	4 mm

For verification of compliance of power reduction scheme, additional SAR testing with EUT transmitting at full RF power at a separation of "the triggering distance - 1mm":

Bottom Face: 19 mm
Edge 1: 15 mm
Edge 4: 3 mm

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