System Description

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Issued Date
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Feb. 14, 2020
Form version: 181113
FCC SAR TEST REPORT
Report No. : FA9O2119
10. RF Exposure Positions
10.1 Ear and handset reference point
Figure 9.1.1 shows the front, back, and side views of the SAM phantom. The center-of-mouth reference point
is labeled “M,” the left ear reference point (ERP) is marked “LE,” and the right ERP is marked “RE.” Each ERP
is 15 mm along the B-M (back-mouth) line behind the entrance-to-ear-canal (EEC) point, as shown in Figure
9.1.2 The Reference Plane is defined as passing through the two ear reference points and point M. The line
N-F (neck-front), also called the reference pivoting line, is normal to the Reference Plane and perpendicular to
both a line passing through RE and LE and the B-M line (see Figure 9.1.3). Both N-F and B-M lines should be
marked on the exterior of the phantom shell to facilitate handset positioning. Posterior to the N-F line the ear
shape is a flat surface with 6 mm thickness at each ERP, and forward of the N-F line the ear is truncated, as
illustrated in Figure 9.1.2. The ear truncation is introduced to preclude the ear lobe from interfering with
handset tilt, which could lead to unstable positioning at the cheek.
Fig 9.1.1 Front, back, and side views of SAM twin phantom
Fig 9.1.2 Close-up side view of phantom showing the
ear region.
Fig 9.1.3 Side view of the phantom showing relevant
markings and seven cross-sectional plane locations