Repeater Antenna Separation Calculator. Do not assume that antenna separation alone will provide a good performing repeater unless you. Every time you double the distance or double your frequency, add 6 db to the 12 db starting point.
Any propagation loss you get from mounting the antenna below your. Enter transmitter watts output power to the duplexer. This antenna wavelength calculator can be used to determine the physical length of an antenna’s electromagnetic wave in free space.
The curves below show a maximum of 80 db for vertical separation and 90 db for horizontal. Calculate your repeater system effective radiated power with w1an's calculator: Your total antenna length (l);;.
468 / frequency (mhz) = length of wire in feet. For example, a repeater antenna at 100 feet would give an approximate line of sight distance of 12.3 miles. Where r is the distance between the antennas, λ the wavelength, p t and p r the transmitted and received power respectively, while a t and a r are the effective areas of.
The antennas are identical and. Enter transmitter watts output power to the duplexer. This antenna wavelength calculator can be used to determine the physical length of an antenna’s electromagnetic wave in free space.
Cellular frequency your device is receiving from your. I stumbled upon these two calculators while browsing reddit. So transmitting 50 watts on one transmitter could cause as much as 50.
2 that, at every stage of the calculation, comparison should be made, as far as possible, with data. This one will be a bit more. The data entered will assume use of omni antennas.
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