For several days over the last few weeks I have been doing tests with local stations to see if 10mW ERP 8m WSPR could be copied locally. In the end, 6 locals were able to get the signals and as far as I know they all used antennas that were not cut for 8m!!
My conclusion is that 10mW ERP WSPR beacons would definitely cover the local area. My own interpretation of UK ISM rules is that anyone may legally transmit beacons at 8m in the ISM band as long as they meet the technical requirements and IR2030 without a licence. With Es conditions such beacons will be copied in Europe occasionally.
My local tests have now stopped.
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