I’ve seen movies in which pilots communicate with unauthorized planes in order to force them to go away/land nearby immediately.. etc.
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Do all planes from all countries have an universal radio frequency? (Even ones flying illegally?) How does it work?
In: 110
In the US, you should monitor 121.5 while in flight. I’m guessing it’s the same elsewhere.
[AIM](https://www.faa.gov/air_traffic/publications/atpubs/aim_html/chap5_section_6.html)
>All aircraft operating in US national airspace are highly encouraged to maintain a listening watch on VHF/UHF guard frequencies (121.5 or 243.0 MHz). If subjected to a military intercept, it is incumbent on civilian aviators to understand their responsibilities and to comply with ICAO standard signals relayed from the intercepting aircraft.
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