Clint U.

Not to be that person, but in 1998 there were a lot of big dogs and alsatians roaming around Yorkshire farms. Is it possible it was a particularly large dog with unusual colouring?

Have you tried it in old buildings or places with reported activity? That's really where the test is - not just near your WiFi router.

Cheers for the heads up. Just downloaded the files - the Pennines incident is genuinely fascinating. The radar operators seem genuinely baffled by whatever they're tracking.