Z-Wave Alliance Counters NextNav Interference Study
The Z-Wave Alliance slammed a recent NextNav engineering study that found no interference concerns with the company’s proposal for the FCC to reconfigure the 902-928 MHz band “to enable a high-quality, terrestrial complement” to GPS for positioning, navigation and timing services (see 2503030023). The NextNav proposal is one part of a GPS notice of inquiry approved last month by the FCC (see 2503270042).
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NextNav asserts that proposed operations in the lower 900 MHz band “will coexist without harmful interference to unlicensed Part 15 devices,” the alliance said in a filing posted Wednesday in docket 24-240. “The study is undermined by significant omissions and a lack of real-world data: put simply, there is a great deal of testing which should be conducted by an objective third party in order to validate claims of non-interference,” it said. “Compounding the incomplete nature of the analysis, the study is built on flawed assumptions, leading to spurious conclusions.”