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To find out more, including how to control cookies, see here: Cookie Policy. As already stated, commercial 2. This corresponds dBm. Antenna gain dBi : The performance gain of a antenna is being stated in dBi.
The measuring value dBi is a relative indication and relates to a isotropic radiator a lossless radiator with 0dBi performance gain which spaces out performance evenly in all directions. Through bundling the signal on the antenna the performance is no longer spacing out evenly in all directions, but through one signal aperture angle in only one direction. Through the bundling of the signal the performance gain increases in relation to the isotropic radiator.
On same principle now start from our second entry point in step 1. From 10 dBm box go down 3 boxes and half the mW value. For example 10mW will be 5mW and keep going down until you hit the last box. Once one side is completed now go upwards from 10 dBm boxes and double the mW value as show below. In this step we should be able to complete our conversion box cheat sheet. You can create this sheet before your CWNA exam and use it for your exam questions.
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