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Equipment is required to emit only within its allocated frequency bands. No-one is suggesting that the radar altimeters are emitting outside of their allocation
by NovemberWhiskey 5y ago
Equipment is required to emit only within its allocated frequency bands. No-one is suggesting that the radar altimeters are emitting outside of their allocation; but there's no law that says that devices have to be immune to interference from other transmissions outside their allocated bands.
- fennecfoxen 5y agoThere’s definitely laws that say certain equipment had to “accept” interference from lawful transmissions. You’ll find a label to that effect on every piece of 802.11 and Bluetooth gear in the US, for starters. “Immunity” is largely your own problem though.
- NovemberWhiskey 5y ago>There’s definitely laws that say certain equipment had to “accept” interference from lawful transmissions. You’ll find a label to that effect on every piece of 802.11 and Bluetooth gear in the US, for starters. That's specifically for unlicensed Part 15 devices ref. https://www.ecfr.gov/current/title-47/chapter-I/subchapter-A/part-15#p-15.19(a)(3) https://www.ecfr.gov/current/title-47/chapter-I/subchapter-A... ... the point of that wording is that unlicensed devices have no rights vs. licensed emissions.