Variant Cover Letter

FCC ID: XPYEMMYW165

Cover Letter(s)

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FCCID_3248162

@blox Attn: Reviewing Engineer Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Registered office: whlox AG Zircherstrasse 6B 8800 Thakwi Switzerland Company number: CH—020.3.020.161—7 info@urblox.com support@u—blox.com Comparison of EMMY—W1 modules To whom it may concern: We, u—blox AG, hereby declare that there is no difference in the software—defined behaviour of the EMMY—W1 models with FCC IDs: ECC ID Product name Date of original grant xevenmywist EMMY—W161 and EMMY—W161—A o8raro16 XPYEMMYW163 EMMY—W163 and EMMY—W163—A 09092016 XPYEMMYW165 EMMY—W165 and EMMY—W165—A 102572016 XPYEMMYW16x modules are identical in operation. All required DFS test have been performed and the test reports shall befiled as exhibits. This document includes an overview on thedifferences between the EMMY—W1 series modules: 1 Technical differences between the EMMY—W1 series modules All EMMY—W1 series modules offer Bluetooth, Bluetooth Low Energy, 2.4 GHz WLAN (IEEE 802.11b/g/n compliant), 5 GHz WLAN (IEEE 802.11a/n/ac compliant), and NFC radio technologies. The differences between the product types are in their antenna configurations and in the used band—pass filters. EMMY—W161 and EMMY—W165 use the same antenna configuration. EMMY—W163 has a separate antenna pin for Bluetooth and BT LE, the WLAN and NFC radio parts are identical to EMMY—W161 and EMMY—W165. a) Components Except for the 2.4 GHz band—pass filters (BPF), all other components are identical for all EMMY—W1 product types. The BAW—type BPF on EMMY—W161 has been selected to improve coexistence with LTE for co—located LTE and Wi—F/BT antennas. EMMY—W163 and EMMY—W165 share the same PCB. The PCB stack—up of all variants is identical; actually the only differences are in the different layout(footprint) for the BAW filter. EMMY—W161 EMMY—W163 and EMMY—W165 Bulk acoustic wavefilter Multilayer ceramic band pass filter. Same part for EMMY—W163 and EMMY—W165. locate, communicate, accelerate

b) Operational mode All EMMY—W1 series modules operate with the same firmware and host driver. For this reason, thereare no differences in the software—defined behaviour of the modules, such as adaptive channel access mechanism or the Dynamic Frequency Selection (DFS) mastercapability behaviour. For EMMY—W1 the DFS function have been implemented in the 5.25—5.35 GHz band and 5.47—5.725 GHz band for all above mentioned FCC IDs. Sincerely, Applicant‘s Company: u—blox AG Address: Zircherstrasse 68, 8800 Thalwil, Switzerland Job Title and Dept.:


Document Created: 2019-10-05 20:58:46
Document Modified: 2019-10-05 20:58:46
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