What happens if you don’t put your phone in airplane mode? - Lindsay DeMarchi

Summary by Krater

An animated explainer detailing how smartphones emit radio waves to connect to cell towers, the problem of signal interference in congested areas, and the impact of rogue signals on radio astronomy.

From the video

Answers: How do cell phones and radio waves affect interference and astronomy?

• electromagnetic spectrum
• radio waves
• cell towers
• signal interference
• radio astronomy
• airplane mode

What it concludes

• Smartphones emit high-amplitude radio wave signals when far from service, and airplanes can act as accidental radio jammers if not placed in airplane mode.
• Household electronics emit rogue radio waves that slow down internet speeds and lead consumers to pay for more bandwidth.
• Radio telescopes rely on specific unforced bands of wavelengths to see deep into space, but widespread cellular and satellite networks are crowding out these radio-quiet zones.