Thanks to VE3NEA for letting us know about his new RTL-SDR compatible heatmap generator plugin for SDR#. To use the plugin you first need to generate some heatmap CSV data by using the rtl_power software. You can then open the CSV file in the plugin and it will generate a heatmap image. A frequency heatmap shows a wideband waterfall image of detected frequency activity.
RTL-SDR heatmap tools are nothing new, but the convenience of having it as a SDR# plugin is that you can click on the heatmap image to instantly tune to a frequency where activity was recorded during the initial rtl_power scan.
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