British Pilots Only Protecting Their Turf
It seems, notwithstanding UK airspace is not the most congested, that it reports the highest number of drone 'incidents' real or imagined. The pilots professional association was rattling it's cage way back when drone ownership was in it's infancy.
The very same pilots also seem to be equipped with super-human eyesight, they can spot drones at great distances and speeds regardless of colour. It has been scientifically proven that pilots eyes go 'unfocused' when faced with bland cloud formations.
And rooftops filled with equipment sold to gullible governments will only disable vanilla type drones as the equipment assumes that drones are utilising Industrial, Scientific and Medical Radio Bands (ISM Band). Some systems are quite advanced and now employ spread spectrum technology.
Drones aren't the only Unmanned Aeronautical objects floating around. How many reports have there been complaining about weather balloons - which assume really impressive sizes at height - or other miscellany that share airspace? Very few. Back in the time I worked near Gatwick and we regularly dispatched balloons and other things for the Met Office into the air.
Readers should check their eyesight by looking out of a vehicle's side window and identify objects that pass through their vision. Really hard.
And what is the real risk of colliding with one of these imaginary drones? Apart from the engines, aircraft are designed to pass air around them.
Then there's Canada Geese. Without a doubt, the mass of a Canada Goose dwarfs that of most drones - yet British pilots don't seem to either see them or report them as hazards. Whilst Canada Geese have been seen as high as 9000 feet, Bar-headed Geese and Demoiselle Cranes actually fly at heights of up to almost 30,000 feet - but I guess British pilots are sleeping on autopilot at those climbs.
If people wanted to really mess up airport operations they would stick a 30 watt VHF amplifier in their boot (trunk) fed by a jammer that covered the AM-FM band used by aircraft, and then drive around to avoid detection. That would really wind Gatwick up!