Tcas issue

[flewitt89]

After take off my tcas will immediately start to go off, I’ve had this from Birmingham airport when there has been no traffic around me and had lasted me half hour before it annoyed me and I restarted the flight, then in lax where it was picking up traffic from 20 miles away and 2k feet above as a collision, even after a while and being around no planes it was still giving me ra alerts constantly. I’m not sure if I’m doing something wrong but I doubt it as you can’t change tcas settings apart from on and off?