Radio Basics Presentation, by Saratoga
Section 3 Tactical Radios
CB – Citizens Band
- Total of 40 channels.
- Channels from 26.965 to 27.405 MHz (11 meter HF band).
- Reliable range is from 5-10 miles but can be much farther with right conditions.
- For use in personal and business activities of the general public.
- There is no age, citizenship, or license requirements.
- Can use any of the 40 channels, but channel 9 is used only for emergencies or traveler assistance.
- Usage of all channels is on a shared basis.
- Generally limited to 4 watts.
GMRS – General Mobile Radio Service
- Total of 15 channels.
- Channels 1-7 shared with FRS.
- Channels from 462.5625 to 467.900 MHz (just above the 70cm Ham band) in the UHF band.
- Range is normally 2-5 miles.
- Requires a license ($85 / 5 years) but no exam.
- Can transmit up to 50 watts, but 1 – 5 watts is more common.
FRS – Family Radio Service Total of 14 Channels
- Channels 1-7 shared with GMRS
- Channels from 462.5625 to 467.7125 MHz (just above the 70cm Ham band) in the UHF band.
- Range is about 1-2 miles.
- Initially proposed by Radio Shack in 1994 for use by families, authorized in the US since 1996.
- Limited to 500 milliwatts (0.5 watts).
- Must use permanently attached antennas.
MURS – Multi-Use Radio Service
- Total of 5 channels.
- Channels from 151.820 ot 154.600 MHz (just above the 2m Ham band) in the VHF band.
- Range is 2-5 miles.
- Total of 50 channels.
- Channels from 156.000 to 157.025 MHz (just above the 2m Ham band) in the VHF band.
- Limited to “on the water.”
- Range is about 20 miles.
- Receiver used to monitor police, fire and emergency medical services on VHF and UHF.
- Sequentially monitor multiple programmed channels or search between frequency limits.
- Stops on active frequency and resumes scanning other frequencies when that activity ceases.
Read the rest, here. Pay attention the the advantages of Ham radio, and think ‘hand held’ and NPT security patrols.