A-DUAL Technology Inc.
Access Approval Professionally
Copyright © 2009 A-DUAL Technology Inc. All rights reserved.
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最新訊息
FCC would start approving indoor only devices that did not operate in 5600-5650 MHz band. |
Per FCC/TCB Nov. 2009 conference call, FCC would start approving indoor only devices that did not operate in 5600-5670MHz band. An FAQ as below was distributed by FCC to address some of the general questions about the approval of these devices.
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Question: What are the Commission's interim plans to approve UNII devices operating in the 5470 - 5725 MHz band with radar detection and DFS capabilities?
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Answer:
The Commission is working to resolve interference to Terminal Doppler Weather Radar (TDWR) systems used at airports that has occurred from some outdoor wireless systems operating in the 5.4 GHz (5470 MHz - 5725 MHz) band. These wireless devices are required to implement radar detection and DFS functions when operating as a master device and are subject to Section 15.407 of our rules. We are working with the FAA and NTIA to develop long term equipment authorization test procedures that will ensure that the devices comply with our rules and also protect the TDWR operations. In the interim, the Commission will allow certification of wireless master devices with radar detection function and with DFS capability, if they meet the following conditions:
- devices are intended for indoor operations only;
- devices will not permit operations on channels which overlap the 5600 - 5650 MHz band;
- devices meet all the other requirements specified in Section 15.407 and no configuration controls are provided to change the frequency of operations outside the grant of certification for US operation.
All the devices operating in the 5.4 GHz band and subject to the DFS requirements must be submitted to the Commission's Laboratory Division for pre-grant testing and equipment authorization. The grantee must ensure that the applications subject to this interim procedure must include appropriate attestations that the device is intended for indoor use (through a clear indication in a manual or labels with the device) and must demonstrate through test reports that the transmission is disabled in the 5600 - 5650 MHz band.
We are continuing to evaluate what additional measures may need to be taken to further ensure against interference from 5 GHz outdoor wireless systems located near airports. While manufacturers have an obligation to ensure that their equipment complies with FCC rules and must take steps to ensure their devices do not cause harmful interference, Section 15.5 of the Commission's rules also places an obligation on users of devices that operate under Part 15 to avoid causing interference and correct any interference that may occur. It is incumbent on users to cooperate with manufacturers to implement any changes necessary to facilitate compliance.
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