National Spectrum Managers Association Unlicensed Devices May 16, 2006 Mitchell Lazarus | 703-812-0440 | [email protected] Topics. TV “white space” legislation Proposed service changes in the 902-928 MHz band 5 GHz U-NII band expansion. TV “White Space” Legislation. Background.
Figure 2: Unlicensed DAA device in shadow can cause interference
Unlicensed Device in Shadow
Building / Terrain
Figure 3: Unlicensed transmitter can fail to detect distant signal
Outdoor TV Antenna
Unlicensed Device Misses Weak Signal
* “Communications, Consumer’s Choice, and Broadband Deployment Act of 2006,” S. 2686, Sec. 602 (May 1, 2006).
(Power ratings are not directly comparable.)