hraunfoss.*fcc*.gov/edocs_public/attachmatch/DOC-255351A1.pdf


In today’s 2nd Report and Order, the Commission amended its rules for general Part 15 unlicensed operations that use wide bandwidths but are not classified as UWB devices under its rules. It increased the peak power limits and reduced the unwanted emission levels for 3 frequency bands that were already available for unlicensed operation: 5925-7250 MHz, 16.2- 17.2 GHz, and 23.12-29 GHz, and indicated that higher peak power limits in these bands would facilitate wideband operations such as short range communications, collision avoidance, inventory control and tracking systems. The Commission also amended its measurement procedures to permit frequency hopped, swept frequency, and gated systems operating within
these bands to be measured in their normal operating mode.

In light of these changes to the general Part 15 provisions, the Commission did not make any major changes to the current UWB technical requirements, indicating that changes to these rules at this early stage could be disruptive to current industry product development efforts. The Commission made only a minor change to the measurement procedure applied to gated UWB
vehicular radar systems.

Action by the Commission December 15, 2004, by Second Report and Order and Second
Memorandum Opinion and Order in ET 98-153 (FCC 04-285). Chairman Powell,
Commissioners Abernathy, Copps, Martin and Adelstein.



From December 24, 2004:

* FCC Permits New Unlicensed UWB Devices *
* ** *The FCC adopted new rules to permit unlicensed wideband devices in the 6 GHz, 17 GHz and 24 GHz bands. Specifically, the FCC amended its rules for general Part 15 unlicensed operations that use wide bandwidths but are not classified as UWB devices under its rules. It increased the peak power limits and reduced the unwanted emission levels for 3 frequency bands that were already available for unlicensed operation: 5925-7250 MHz, 16.2-17.2 GHz, and 23.12-29 GHz, and indicated that higher peak power limits in these bands would facilitate wideband operations such as short range communications, collision avoidance, inventory control and tracking systems. The Commission also amended its measurement procedures to permit frequency hopped, swept frequency, and gated systems operating within these bands to be measured in their normal operating mode.


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