A nifty freeware bit of (windows) software for hams and other radio people is called “Radio Mobile”. This tool allows you to simulate and map predicted coverage of your location using terrain and clutter data and maps expected coverage into google maps.
The windows version requires you to source the terrain and clutter data (easy to find) and allows you to map your footprint locally on a pc, (which i don’t have anymore being a mac house)
I use commercial software to do this type of thing in my day job, designing and optimising a mobile telephone network. That software is worth tens of thousands (if not hundreds of thousands of dollars) we use much more detailed terrain data and better clutter, we also spend a lot of time modelling antennas and ensuring the predictions match the network.
Im not sure why I looked the other week, but discovered radio mobile had gone online. This online version uses its own local terrain database (so you don’t have to find one) and lets you modify the parameters and map your coverage footprint, most features of the downloaded-able version are available online, BUT it happily works on my MAC, including the ability to map coverage, and predict a path/link loss, and model antennas. You can choose the detail in terrain and clutter data, a high res analysis takes around 2 mins with the server doing all the work. Spitting out a KML file at the end you can display online on google maps or download into google earth.
Having had a bit of a play with radio mobile online. I agree with the general predictions. Im on the edge of a ridge and have a very good view for ~300 degrees looking south and west. From my roof, I can see the city. Only blocked to the North East, and then only by another 20m of terrain before the surrounding hills. Below is a prediction from my home with my 146MHz omni at 10m and 100w FM. Have a play online and see how your courage footprint looks. 😀
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