DFS Description letter

FCC ID: 2AEUPBHARG051

Cover Letter(s)

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FCCID_4487512

Ring LLC 1523 26th Street, Santa Monica, California, 90404, United States Date :Sep. 30, 2019 DTS-UNII Device Declaration Letter To whom it may concern : We have declared below featured for FCC equipment authorization, Device FCC ID :2AEUPBHARG051 DFS Device -- Master , Client with Radar detection capability , ■ Client without radar detection capability , N/A (1) Active / Passive Scanning , adhoc mode access point capability Frequency Band Active Scanning passive scanning Ad Hoc Mode or Access point (MHz) (the device can transmit (where the device is can WIFI Direct capability a probe (beacon)) listen only with no capability probes) 5150-5250MHz Yes , ■ No ■ Yes , No Yes , ■ No Yes , ■ No 5250-5350MHz Yes , ■ No ■ Yes , No Yes , ■ No Yes , ■ No 5470-5725MHz Yes , ■ No ■ Yes , No Yes , ■ No Yes , ■ No 5725-5850MHz Yes , ■ No ■ Yes , No Yes , ■ No Yes , ■ No (2) Country code selection ability - Yes , ■ No If yes, pls explain how it was implemented : (pls also help to provide detail of options for each country selection) (3) Meet 15.202 requirement - ■ Yes , No , pls check below : A master device is defined as a device operating in a mode in which it has the capability to transmit without receiving an enabling signal. In this mode it is able to select a channel and initiate a network by sending enabling signals to other devices ■A client device is defined as a device operating in a mode in which the transmissions of the device are under control of the master. A device in client mode is not able to initiate a network. (4) For client devices that have software configuration control to operate in different modes (active scanning in some and passive scanning in others) in different bands (devices with multiple equipment classes or those that operate on non-DFS frequencies) or modular devices which configure the modes of operations through software, the application must provide software and operations description on how the software and / or hardware is implemented to ensure that proper operations modes can not be modified by end user or an installer. Apply ,■ No Apply , (If apply , pls help to provide explanation on it was implement , and how software was controlled)

Name / Title :Carro Hsieh / Engineer, Ring Signature : Phone :8006561918 Fax :3102272217 Email :carro.hsieh@ring.com Address:1523 26th Street, Santa Monica, California, 90404, United States


Document Created: 2019-10-22 10:13:13
Document Modified: 2019-10-22 10:13:13
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