> As spelled out in ARRL’s 2017 complaint, the ARRL Laboratory had documented that the operating frequencies of these drone TV transmitters near the 1.3 GHz amateur band were dip-switch selectable

They weren't even pretending to hide it. The product listings showed which channels were selectable and it looks like the dip switches were easily accessible:

https://hobbyking.com/en_us/1-2ghz-mg-500mw-8ch-a-v-wireless...