Here I will note how I found out what frequency my wireless keyboard is on, capturing the signal and replying the signal.
Need the RTL-SDR dongle (pretty cheap here)
Install SDR# from here. (http://airspy.com/download/)
Run the install-rtlsdr.bat file (bat file text here) This batch file basically installs zadig.exe
Open SDRSharp.exe, Change source to RTL-SDR(USB)
Now we need to figure out what frequency the keyboard operates in.
…well this would have been a fun project… but the FCC ID shows that it is in 2402.0-2480.0 range which exceeds all my sub 1Ghz equipment. lol I forgot what frequency it ran on.
This killed about 15 minutes.