If you want to use the Dakota MURS Alert System with the default programming that your radios came with:
From the product manual: <http://dakotaalert.com/manuals/Murs-Alert.pdf>
Set the channel switch inside the Dakota MURS Alert to CH 1 and the Subchannel to 12. This will correspond to the default programming that is in Channel 1 of your TK2100 radio.
Channel 1 = 151.820 MHz / PL = 100 Hz