Product Info

Report No: CCISE191202301-V01
Shenzhen Zhongjian Nanfang Testing Co., Ltd. Project No.: CCISE1912023
No. B-C, 1/F., Building 2, Laodong No.2 Industrial Park, Xixiang Road,
Bao’an District, Shenzhen, Guangdong, China
Telephone: [phone] Fax: [phone], E-mail: [e-mail] Page 27 of 171
11.6 Wireless Router (Hotspot) Configurations
Some battery-operated handsets have the capability to transmit and receive internet connectivity through
simultaneous transmission of WIFI in conjunction with a separate licensed transmitter. The FCC has provided
guidance in KDB Publication 941225 D06 where SAR test considerations for handsets (L x W ≥
9 cm x 5 cm) are based on a composite test separation distance of 10 mm from the front, back and edges of the
device with antennas 2.5 cm or closer to the edge of the device, determined from general mixed use conditions
for this type of devices. Since the hotspot SAR results may overlap with the body-worn accessory SAR
requirements, the more conservative configurations can be considered, thus excluding some body-worn
accessory SAR tests.
When the user enables the personal wireless router functions for the handset, actual operations include
simultaneous transmission of both the WIFI transmitter and another licensed transmitter. Both transmitters often
do not transmit at the same transmitting frequency and thus cannot be evaluated for SAR under actual use
conditions. Therefore, SAR must be evaluated for each frequency transmission and mode separately and
summed with the WIFI transmitter according to KDB 648474 publication procedures. The “Portable Hotspot”
feature on the handset was NOT activated, to ensure the SAR measurements were evaluated for a single
transmission frequency RF signal.
Fig.11.6 Illustration for Hotspot Position