They unfortunately don't ... but they try to :
to keep those frequencies clear for important messages (rather than chit-chat).
Answer 2I don't know where you come from, but in most countries it is a criminal offence to transmit or listen into a frequency you are not allowed to use, including those of the emergency services.
In order to use a frequency you need to get a licence for it from the government (with a few exceptions, for example the broadcast frequencies where you do not need a licence to listen, but do to transmit).
102.2
Wavelength
One convenient working definition of 'radio' is: Electromagnetic radiation withfrequency up to 300 GHz / wavelength down to 1 millimeter.'Radio' is our name for the lowest frequency / longest wavelength, so there'sno lower limit on frequency, or upper limit on wavelength.
Radio Amateur Civil Emergency Service was created in 1952.
Extra-low frequency radio waves can have wavelengths as long as 3.5 miles or more. The shortest wavelength is around 1 mm.
The government may utilize ham radio (technically defined as "Amateur Radio") during times of disaster, natural or man-made, to provide inter-agency emergency communications. Amateur Radio operators by law are not allowed to accept payment for their services, and as such, they are not government employees. There are several volunteer organizations that various government agencies may enlist to provide emergency communications, such as ARES, the Amateur Radio Emergency Service. For more information on how Ham Radio can help during disasters, visit http://www.emergencyradio.org/.
Radio waves have a longer wavelength than visible light.
Short wavelength
The Radio Amateur Civil Emergency Service (RACES) was founded by the US government in 1952. It is a network of amateur radio operators that agree to provide their services in case of emergency. This can allow for faster communication than would be possible through existing government services.
Radio wave.
That depends on what station the radio is tuned to and the other radio signal. In general, they tend to be quite similar if not identical.
"radio waves" have longest wavelength..
Emergency positioning indicating radio beacons are used during emergencies. It is used to alert search and rescue services in the event of an emergency
102.2
radio waves
Shortest wavelength is gamma rays. Next longer wavelength is with Xrays. Then Ultraviolet, visible radiations, infra red, microwaves, radio waves with shorter wavelength and radio waves with longer wavelength
If the wavelength is longer, then the frequency is lower and the energy is less.