Using handheld GPS on commercial flight

[Contacttower]

There are numerous threads on the subject, in this, and other forums. Most particularly I would draw your attention to posts by radeng who can speak with some experience.

I feel the need to jump to TWAPilot's defence here. What radeng said in a previous thread wasn't actually relevant to the specific question being asked (see I have read the previous threads) which concerned a specific model of GPS system. What radeng did say was true (I take it) in a broader sense about GPS systems and what may or may not interfere but actually was irrelevant to GPS systems designed, certified and used in aircraft.

It's not really a question of being an 'authority' on anything...its simply a case of knowing that a GPS system designed for use on an aircraft can safely be used in an aircraft.