Interference is caused by the signal from your antenna to your TV being either weak or compromised. Basically, there’s not enough signal, or there are other unwanted elements messing up the signal quality.
Common causes of this include:
A faulty antenna, cable damage, a broken connection or component (splitter, amplifier, wall plate etc), using the wrong antenna for your area, external interference (Mobile phone towers, CB radios, solar panels, electric fences).
Identifying the problem without proper test equipment can be difficult, so we recommend sending a technician to conduct a full test of your antenna system.