Very high frequency Frequency range30 MHz to 300 MHzWavelength range10 to 1 mVery high frequency – Wikipedia en.wikipedia.org › wiki › Very_high_frequency
Read moreHow do you calculate sight distance?
For example, if your height of eye is 9 feet above the surface of the water, the formula would be: 1.17 times the square root of 9 = Distance to the horizon in nautical miles .
Read moreHow far is radio line of sight?
So according to our rule-of-thumb, 2 people around 6 feet tall using a 5 watt handheld two-way radio, used on flat ground with no obstacles, will have a maximum range of approximately 6 miles .
Read moreHow is UHF range calculated?
To calculate the range of an antenna, you multiply the square root of the antenna’s height above water (in feet) by 1.42 . The product will equal the antenna’s communication range in miles.12 Şub 2014
Read moreHow is radio range calculated?
That formula is: Horizon in kilometers = 3.569 times the square root of the antenna height in meters . For example, if the antenna height of a radio is at 6 feet (1.82880 meters tall) the horizon is 2.99 miles away (4.83 kilometers) and another radio with the antenna at 6 feet, that equals approximately a 6-mile range.
Read moreWhat channels are in the low band VHF?
Low-band VHF range of 49 MHz includes transmission of wireless microphones, cordless phones, radio controlled toys and more . Slightly higher VHF range of 54-72 MHz operates television channels 2-4, as well as wireless systems defined as “assistive listening.” VHF frequencies 76-88 MHz operate channels 5 and 6.21 Eyl 2015
Read moreWhat is VHF low?
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.”
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