Radio Mobile -- Free Radio Organizing Software
Radio wave reproduction is a very complex procedure. It is impossible to precisely predict how waves will spread and what values we will calculate at some particular point. Therefore we have some mathematical models for you to approximate radio reproduction and to calculate industry strength values in accordance with predefined probability.
The actual propagation model, that's based on electromagnetic idea and on statistical analysis of both surfaces features and r / c measurements, predicts the particular median attenuation of the radio stations signal as a function of distance and the variability of the signal over time and in space. Reproduction models define shapes and formulas. Basic model we can anticipate propagation in irrelavent distance from the transmitter.
Employing curves and precise formulas manually is an extremely tough task. So that you can automate and quicken such calculations a lot of software tools were produced. Normally, radio arranging software packages are used by broadcasters, mobile operators and radio frequency authorities. Due to complexity and small number of potential customers, the price of these kinds of software package can be pretty high. But there is 1 exception to this principle.
Radio Mobile is really a software tool for radio propagation calculation. The article author has decided to publish the idea under the "freeware" license which means that the software is readily available on the web. This software is primarily dedicated to amateur r / c, however, it can be in addition used in other areas which includes broadcasting and expert mobile communications.
Computations are based on the Longley-Rice propagation model. This is a standard purpose radio propagation model for frequencies between 20 MHz and 20 Gigahertz. In order to use the software additionally you need terrain model data. This data is needed for calculations involving effective heights that happen to be needed to perform reproduction calculations. You can find a few terrain model data sources on the web. They have free DTM (Digital Landscape Model) data which can be enough to start dealing with the Radio Mobile.
Radio Mobile supports many fancy features similar to possibility to use DTM in several formats (DTED, SRTM), also in many layers with different solution, possibility to add map pictures in raster formatting (BMP, JPEG, GIF, TIFF, PNG), possibility to determine interference between r / c and lots of functions a customized view.
Basic method of use consists of going into radio stations with all parameters (if they are not joined yet) and computation of the coverage. Below you have a lot of choices to customize the calculation and view. Results can be saved for later use. It is also simple to define calculation phase for coarse data to save some time.
With regard to result display it is almost always not enough to display this on the gray size DTM. You would probably like to see the idea on some guide. For this purpose you can use just about any map picture together with known coordinates. The application allows you to enter harmonizes for each picture to be able to display it appropriately over the DTM.
A very helpful function is the computation of interference in between radio stations. You establish protection ratio and minimum field strength for calculation as well as the software marks interference area with definite color.
The software can be very useful for micro wave link planning. It allows you to display surfaces profile between 2 points, display involving optical visibility from the point and calculations of link guidelines. Although this software is totally free and dedicated pertaining to amateur radio it can be very useful tool for daily radio connection tasks.