This is an image of a 1 MHz bandwidth slice within the 2-Meter Band of the Radio Frequency spectrum in San Jose, CA. The image is built from logged data over a period of 12 hours on 2 January 2015.
After successfully getting my USB SDR to work on rtl_power I have some information to share. To my surprise, it took very little time.
Here’s the first example I’ve created using the rtl_power software combined with the Python heatmap.py script.
In continuation to my USB SDR post, installing GNU Radio was my first priority. GNU Radio (which I’m still very far from knowledgeable about) appears to allow my computer to recognize the USB SDR and grant me access to it. It can do much, much more, but that’s the extent of my knowledge so far.
sudo apt-get install gnuradio
This takes a while. Go get a cup of coffee.
It’s odd that I’m more excited about a sub-$20 USB Software Defined Radio (SDR) dongle than some of my more advanced (and pricey) radios. Ham radio and ‘home brew’ are synonymous. The idea of taking a pinch of hardware and applying a heaping portion of software to it gets me all worked up. I’ve decided to make this my ham radio goal for 2015.