What UHF frequencies can I use?
The UHF (Ultra High Frequency) band spans from 380-512MHz, exception being the 420-450 MHz band, which is an Amateur Radio band and generally excluded from in-door RF coverage enhancement. 450-470 MHz – Land-Mobile Radio band. Allocated for use by Police, Fire, Government, business, and other 2-way radio services.
What is UHF frequency range in GHz?
UHF. 300 MHz – 1 GHz. 100cm to 30 cm. L band. 1 to 2 GHz.
What is the frequency range of VHF and UHF?
In the United States, the frequencies used for these systems may be grouped into four general bands or ranges: low-band VHF (49-108 MHz), high-band VHF (169-216 MHz), low-band UHF (450-806 MHz), and high-band UHF (900-952 MHz). VHF represents “Very High Frequency” while UHF represents “Ultra High Frequency.”
What frequency range is VHF?
30 MHz to 299 MHz
Radio frequency range from 30 MHz to 299 MHz. The sub-bands most commonly used by fire are: VHF-FM Lo band: Frequency Modulation 30 MHz – 80 MHz, of which fire frequencies are between 30 MHz and 50 MHz.
How far will UHF transmit?
Since UHF transmission is limited by the visual horizon to 30–40 miles (48–64 km) and usually to shorter distances by local terrain, it allows the same frequency channels to be reused by other users in neighboring geographic areas (frequency reuse).
What is the difference between UHF and VHF frequencies?
One of the key differences between UHF and VHF is that while both frequencies are part of the overall electromagnetic spectrum, they are two distinct frequency bands along that spectrum. UHF, or ultra high frequency, relates to the band that covers the range between 300 megahertz or MHz and 3000MHz.
How far can an UHF radio transmit?
A range of 4 to 6 miles is average for a relatively clear line-of-sight path. Add obstructions or interference, and most UHF two-way radios have a realistic range of between 1 to 4 miles.
What is the highest frequency in electromagnetic spectrum?
The electromagnetic spectrum covers electromagnetic waves with frequencies ranging from below one hertz to above 10 25 hertz, corresponding to wavelengths from thousands of kilometers down to a fraction of the size of an atomic nucleus.
What is the range of harmful frequencies?
The most dangerous frequencies of electromagnetic energy are X-rays, gamma rays, ultraviolet light and microwaves. X-rays, gamma rays and UV light can damage living tissues, and microwaves can cook them. X-rays have wavelengths ranging from .001 to 10 nanometers, or billionths of a meter.