rtl_power -d 0 -g 4 -p 0 -f 739.468M:740.068M:0.2k -e 24h -i10 qo100_24h.csv
wget https://raw.githubusercontent.com/keenerd/rtl-sdr-misc/master/heatmap/heatmap.py
python3 heatmap.py --offset 9749.9825M qo100_24h.csv qo100_24h.png