On Sep 17, 6:28*am, "Wayne Paul" wrote:

Or if US authorized users of RF frequency of the European FLARM report to the FCC that the units interfere with their systems. *There are parts of the RF spectrum that are controlled by international treaty and other parts that are allocated by country or region. *The frequency allocation between countries was also an issue for the early in the cell phone industry..

If a "European" FLARM is brought to US, and auto frequency selection
has not been defeated, it should be expected to switch to the same
frequency as used for US PowerFLARM.

There would be no point at all in bringing a "European" FLARM to US
unless it did operate on the same frequency.

Andy