Radio Mobile - Free Radio Preparing Software
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Radio wave distribution is a very complex course of action. It is impossible to precisely predict how ocean will spread as well as what values we will evaluate at some distinct point. Therefore we possess some mathematical models for you to approximate radio propagation and to calculate field strength values based on predefined probability.
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The actual propagation model, which is based on electromagnetic theory and on statistical investigation of both ground features and r / c measurements, predicts the median attenuation of the radio stations signal as a purpose of distance and the variability of the signal over time and in space. Distribution models define curves and formulas. With your model we can forecast propagation in hit-or-miss distance from the transmitter.
Using curves and mathematical formulas manually is a very tough task. As a way to automate and speed up such calculations numerous software tools were created. Normally, radio arranging software packages are used by broadcasters, mobile operators along with radio frequency authorities. As a consequence of complexity and very few potential customers, the price of this sort of software package can be quite high. But there is one exception to this tip.
Radio Mobile is often a software tool for radio stations propagation calculation. Mcdougal has decided to publish the idea under the "freeware" license meaning that the software is openly available on the web. This software is usually dedicated to amateur r / c, however, it can be also used in other areas which includes broadcasting and professional mobile communications.
Calculations are based on the Longley-Rice reproduction model. This is a general purpose radio distribution model for frequencies between 20 MHz and 20 Ghz. In order to use the software you also need terrain style data. This info is needed for calculations of effective heights that are needed to perform dissemination calculations. You can find several terrain model information sources on the web. They have free DTM (Digital Terrain Model) data that's enough to start dealing with the Radio Mobile.
Radio stations Mobile supports several fancy features like possibility to use DTM in a variety of formats (DTED, SRTM), also in several layers with different quality, possibility to add guide pictures in raster structure (BMP, JPEG, GIF, TIFF, PNG), possibility to determine interference between r / c and lots of functions a personalized view.
Basic method of use consists of coming into radio stations with all variables (if they are not entered yet) and calculation of the coverage. Right here you have a lot of options to customize the calculation and look at. Results can be stored for later use. It is also easy to define calculation phase for coarse information to save some time.
With regard to result display in most cases not enough to display that on the gray size DTM. You would probably like to see the idea on some map. For this purpose you can use any kind of map picture using known coordinates. The program allows you to enter matches for each picture so that you can display it effectively over the DTM.
A very beneficial function is the calculation of interference in between radio stations. You outline protection ratio along with minimum field durability for calculation and the software marks disturbance area with definite color.
The software is also very useful for micro wave link planning. It enables you to display surfaces profile between a couple of points, display associated with optical visibility from any point and formula of link variables. Although this software is free and dedicated for amateur radio it is usually very useful tool for daily radio interaction tasks.