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  1. This free online tool takes antenna height and the topographical formations of the earth to calculate the line-of-sight of a radio path. Note that buildings and other obstructions is not taken into consideration when calculating line-of-sight using this tool.

  2. The ability to communicate over long distances generally requires a low radiation angle, meaning that an antenna must be placed high above the ground in terms of the wavelength of the radio wave being transmitted.

  3. This line of sight calculator calculates how far the horizon is from an antenna placed at a particular height. The calculators also calculates the radio horizon. It assumes there is nothing between the radio signals and the antenna horizon.

  4. CellMapper is a crowd-sourced cellular tower and coverage mapping service.

  5. 14 Φεβ 2015 · To generate an RF coverage map using Radio Mobile Online, all you need to do if follow the three easy steps below. Create an account with Radio Mobile. Go to the Radio Mobile Online website and create a free account. You can do this by providing your name or callsign and email address.

  6. You can also create a map of required antenna heights from a DEM using MicroDEM. From the “Raster GIS” menu, choose “Required Antenna Height”, then double-click on the antenna site. Enter the height of the receiver antenna above the ground, the receiving range, and the minimum vertical standoff:

  7. bands, as modeled using EZNEC at three different heights above ground: 80, 60 and 35 feet. These graphs vividly depict the bandwidth problem on the lower frequencies, with the results varying significantly with antenna height.

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