37 ms·
AM radio is low frequency radio, right? Good for long distance but you can't pack too many bits into it. Perfect for finding lost objects / dogs / cats. Weath
by formvoltron 3y ago
AM radio is low frequency radio, right? Good for long distance but you can't pack too many bits into it.
Perfect for finding lost objects / dogs / cats.
Weather announcements.
What else??
- creeble 3y agoNot good for finding lost dogs / cats unless hey carry a very large battery and antenna. Good for long distance, but only with a band-matching antenna (and plenty of power) at the transmitting end. But fantastic at reaching multiple simple receivers simultaneously over a very wide area with voice-quality transmission when you do.
- deleted 3y ago[deleted]
- bradfa 3y agoI believe AM commercial radio broadcasts in the USA are medium frequency, not low frequency. My AM radio tuner on my desk goes from 530 to 1700 kHz. Making good antennas for this frequency range generally requires rather physically large antennas as the wavelength is quite large, so finding objects is not really a good use of these frequencies.
- ianburrell 3y agoThe wavelength for 1700 kHz is 578 ft. Antenna would be half that, 289 ft. AM stations usually have a tower that is the antenna.