Pretty cool use we have not seen before.
Very neat. It reminds me of this esp8266 project to plot the wifi strength in a cnc workspace:
Signal strength is nuts. A close friend was doing engineering the same time as me, specializing in antennas. Pretty sure he still works at Qualcomm, never understood any of his homework when he asked me for help (but I faked it).
My wife used to work at qualcomm here in north denver. I don’t understand it either.
RF is black magic.
Or gray magic, or white magic, or bright orange magic…