1. VHF (Very High Frequency): VHF radios operate in the frequency range of 30 MHz to 300 MHz. VHF signals have a relatively short range, but they can penetrate buildings and other obstacles more effectively than higher-frequency bands. VHF is commonly used for short-range communication, such as between vehicles or within a single building.
2. UHF (Ultra High Frequency): UHF radios operate in the frequency range of 300 MHz to 3 GHz. UHF signals have a longer range than VHF signals, but they are more susceptible to interference from buildings and other obstacles. UHF is commonly used for long-range communication, such as between vehicles over long distances or for communication between ground and aircraft.
3. 800 MHz Band: The 800 MHz band is a portion of the UHF spectrum that is specifically allocated for public safety communications. It offers a good balance between range and building penetration, making it suitable for use by police, fire departments, and other emergency services.
4. 900 MHz Band: The 900 MHz band is another UHF frequency band that is commonly used for two-way radios. It is often used for commercial applications, such as communication between businesses and their employees or for private use by individuals.
5. 2.4 GHz Band: The 2.4 GHz band is a part of the Industrial, Scientific, and Medical (ISM) band. It is available for unlicensed use and is commonly used for short-range wireless communication, including some types of two-way radios.
6. 5 GHz Band: The 5 GHz band is another unlicensed ISM band that can be used for two-way radios. It offers higher bandwidths and can support faster data rates compared to lower frequency bands.
It's worth noting that frequency allocations and regulations can vary between countries and regions. Users should check the local regulations to determine the allowed frequency bands and power levels for two-way radios in their specific location.