Often not. Three causes come up far more often than a dead antenna.
Wrong plane. Mount Coot-tha transmits VHF, horizontally polarised. Darlington Range, which serves much of the south-east, transmits UHF vertically. An antenna on the wrong plane works in good weather and fails in a storm.
Too much signal. Close to a 50 kW omnidirectional transmitter, an amplifier can make the picture worse. Inner Brisbane reception faults are frequently over-amplification and reflections off nearby buildings.
The TV tuned itself to the wrong transmitter. Parts of Brisbane can pick up Sunshine Coast or Gold Coast services on auto-tune and store them. The fix is a manual tune and deleting the unwanted services: no hardware, no call-out. We will talk you through it on the phone.
When we do come out, you get the signal reading, not just an opinion.