Hi @Robert.Wall and @DanteRocket18 !!!
As I told you in a previous post, I also edited the emonpi/firmware/src/src.ino because I was calibrating the devices in a more accurate way, due to the EmonHub didn’t allow me to be so accurate (I modified Ical1, Ical2, Vcal_USA) and it’s was great. However, when I compiled and uploaded the src.ino I realised that my EmonPi was no longer reading the EmonTx. Only when I rebooted it, but the emonpi read the Tx for 20 seconds and then it did not read anymore.
Did you know why it happens? It looks like if the RF was disabled !! 
Thank you !