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It's actually hard to fit an FM antenna inside a phone. A quarter wave antenna is 2.5 feet long. Most phones with radio tuners required you to plug in headphone
by Scaevolus 3y ago
It's actually hard to fit an FM antenna inside a phone. A quarter wave antenna is 2.5 feet long. Most phones with radio tuners required you to plug in headphones, and used the headphone cable as an antenna!
- wesapien 3y agoI recall that my wired earphone/headphone acts as an antenna for the LG v20 but I think it was for FM but no AM. I can't check again because I removed the stock OS for LineageOS.