It doesn't. Jamming TCAS or ILS systems doesn't cause crashes. At worst, a go-around and increased workload in the Tower. But since you're disabling safety equ

It doesn't. Jamming TCAS or ILS systems doesn't cause crashes. At worst, a go-around and increased workload in the Tower. But since you're disabling safety equipment or their redundancies, in practise it's rightfully treated as harshly as it is. TCAS almost never activates in practise but if your HAM radio jams it and a crash happens... You disabled that redundancy to prevent accidents.