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For emergency purposes I wonder how hard it is to include an AM receiver. AM waves can travel much farther than FM. I'd guess it's one more part that adds some
by cobbzilla 9y ago
For emergency purposes I wonder how hard it is to include an AM receiver. AM waves can travel much farther than FM. I'd guess it's one more part that adds some marginal cost, and there's more music/fun stuff on FM.
- vvanders 9y agoUsually the FM discriminator is built in hardware, esp if you want low power usage so it's probably not something easily done. Although having a Phone + proper I/Q SDR in one package would be pretty darn awesome though.
- samfisher83 9y agoAM has a much longer wavelength. AM is super simple. It is Amplitude modulation. You take a signal and multiply it by a sinewave. The issue is you need a bigger antenna, and probably need to block noise better since AM has lot of issues with noise.
- reaperducer 9y agoAM needs a much larger, heavier antenna. A good AM antenna is heavier than your entire phone.
- gpvos 9y agoIn Europe, AM is being turned off or has already been turned off in many countries.