kek
Shorter wavelengths (higher freqs) usually local LEOs on VHF 2 meter (144mhz) or 70 centimeter (420mhz). They typically only travel 50 miles ish depending on broadcast power, antenna length, etc.
The 40 meter band (7mhz) has a much longer wavelength and can travel farther. Takes moar specialized equipment and licenses to transmit on that freq, but can be picked up by a lot of radios equipped with SW1 and SW2 bands. Most emergency radios have those bands.
-HAM anon
Cool story of the history of "Skyking" EAM
http://lswilson.dewlineadventures.com/Skyking/
Military B-52: “Staghound Radio, this is Boxer 24 on 236.6. Do you copy?”
Fox Main: “Boxer 24, Staghound Radio. Copy you five by five. Over.”
Military B-52: “Staghound, Boxer 24. Do you have any traffic for me? Over.”
Fox Main: At this point the console operator does not reply but looks up the proper authentication code for the current time and transmits the Foxtrot message in the format noted above.