3 ms·

AM radio reception on a headphone wire is pretty bad. I've had a few small radios designed to get commercial AM/FM using the headphones as antennas; the recepti

AM radio reception on a headphone wire is pretty bad. I've had a few small radios designed to get commercial AM/FM using the headphones as antennas; the reception is almost always very miserable. Meanwhile commercial FM is like ~3.5M wavelength; you're pretty close to a quarter wave with a normal headphone wire (~3ft).

carlmr 2y ago
>you're pretty close to a quarter wave with a normal headphone wire (~3ft) You mean half-wave, right?
- boomlinde 2y ago
  3.5 m is almost 12 feet, so 3 feet is almost a quarter wave.
  - carlmr 2y ago
    Ah, my bad, didn't convert feet properly in my head. Not used to it.
    - vel0city 2y ago
      I'll take half the blame for using such measures interchangeably in a single sentence. The metric system is the tool of the devil! My car gets forty rods to the hogshead and that's the way I likes it!