someguydave

Also, AM voice on VHF is not full duplex and the blocking problem is very real and could be addressed potentially

- there is opportunity for permissionless passive RF sensors like this startup shows. Imagine the pilots in the CRJ received an immediate notification that an intercepting aircraft was getting blocked with(transmitting over) ATC comms on their UHF frequency. I think this could be done without decoding the voices.

- Passive radar combined with direction-finding of the VHF/UHF voice transmissions could also be integrated as another source of high-resolution tracking data

No, you are not allowed to travel there and take it home, but often the border guards look the other way

“ In most circumstances, it is illegal for individuals to import drugs or devices into the U.S. for personal use because these products purchased from other countries often have not been approved by the FDA for use and sale in the U.S.”

Then it would be easy to furnish a few links to source this claim

“In 1894, Democrats in Congress passed the Wilson-Gorman tariff, which imposed the first peacetime income tax. The rate was 2% on income over $4,000, which meant fewer than 10% of households would pay any. ($4,000 was 19.3 times the 1894 nominal GDP per capita of $207.23; the corresponding income in 2021 is $1.3M.)“