While there are several radio bands in use by law enforcement, there is no one channel or frequency that all use.
Its the radio frequency(s) that the police use. It varies from dept to dept.
the Motorola HT600E radios were first used by some UK Police forces in 1987.
The first digital police scanner was invented in the 1970's. Unlike earlier analog version (which were basically AM Radios, as police just used to broadcast using regular radio waves), this scanner was the first to allow you to punch in a frequency to search for the police frequency.
CBs, or Citizen's Band radios, are two-way radios that operate on a specific set of frequencies designated for civilian use. They are commonly used by truckers, off-road enthusiasts, and emergency services for communication over short distances. Military entities may also use CB radios for non-sensitive communications in certain situations.
The Bill does use real Motorola MTH800 Radios their owned by the met but the radios are not actually on while they are shooting the programme as it needs to be on TMO mode for them to use it which they can't while the real police are using this.
No the circuits are not designed to handle video frequency
Yes. As long as they are on the same frequency you can use as many as you want.
Yes, Helicopters have radios similar to what police and fire fighters use.
To find out the frequency you need to buy a frequency counter but they are quite deer so try searching on internet or talk to people that use radios alot and they could tell you
AM - Amplitude Modulation FM - Frequency Modulation
it allows them to speak to each other over long distances when shouting would be difficult
Radio waves. They are a form of electromagnetic waves with a much lower frequency than light, meaning a longer wavelength.