Few things are more frustrating than turning on your TV and being greeted by a "No Signal" message on a blank screen.
Before you panic or assume your antenna is destroyed, work through this guide. In many cases, the fix is simpler than you think.
We'll start with the easiest checks and work our way up to the issues that need professional attention.
📋 In This Guide You'll Learn
- ✅ The most common (and easiest) causes of "No Signal"
- ✅ Step-by-step troubleshooting from simple to complex
- ✅ When to call a professional
Check Your TV Input Source
This is the most common cause and the easiest to fix. Your TV has multiple input sources: HDMI 1, HDMI 2, AV, Component, and the antenna/TV input. If your TV is set to the wrong source, it won't display your free-to-air channels even though the antenna is working perfectly. Grab your remote and press the "Source" or "Input" button. Make sure you've selected the antenna or TV input (sometimes labelled "DTV," "Antenna," or "Tuner").
Retune Your Channels
If you're on the correct input but still getting no signal, your TV may have lost its channel tuning. Power outages, firmware updates, or accidentally resetting your TV to factory settings can wipe your stored channels. Go into your TV's settings menu, find the channel or tuning section, and run a full auto-scan.
Inspect Your Cable Connections
With the TV unplugged from the wall, check every cable in the chain from the wall outlet to your television. Is the coaxial cable screwed in firmly at the wall plate? Follow the cable to your TV and check that connection is tight and the cable isn't bent or kinked sharply near the connector.
Test with a Different Cable
Coaxial fly leads, the short cables between your wall plate and TV, can fail. The connectors corrode, the internal wire breaks, or the shielding degrades. If you have a spare coaxial cable, swap it in and retune.
Bypass Any Splitters or Amplifiers
If your home has multiple TV points, there's likely a splitter and possibly a signal amplifier. If the amplifier has lost power because someone unplugged it, the power point was switched off, or the power supply unit has failed, all TV outlets in the house can lose signal simultaneously. Check if there's a small power supply unit plugged into a wall socket near one of your TV outlets.
Check if It's a Broadcast Issue
Sometimes the problem isn't in your home at all. Broadcast transmitters occasionally go offline for scheduled maintenance or due to faults. Check with your neighbours. If they're experiencing the same problem at the same time, it's likely a transmitter issue and will resolve on its own.
Look at Your Antenna from the Ground
Go outside and look up at your antenna. Is it still upright and pointing in the same direction as your neighbours' antennas? Has it been knocked sideways by wind or storm damage? Are any of the elements broken or hanging loose? If the antenna has visibly moved or been damaged, you'll need a professional.
Consider the Age of Your Equipment
If your antenna is more than 10 to 15 years old, it may have reached the end of its serviceable life. The same goes for old coaxial cabling, particularly if it's the older, thinner RG59 type rather than the current standard quad-shield RG6.
Quick Check
For the most reliable retune results, use a manual tune instead of auto-scan. Visit the ACMA's mySwitch website (myswitch.digitalready.gov.au), enter your address, and it will tell you the exact frequencies for your area.
When to Call a Professional
If you've worked through all eight steps and still have no signal, the issue is beyond basic troubleshooting. It could be:
- →A break in the cabling inside your walls or roof space
- →A failed connection at the antenna itself
- →A deteriorated antenna that looks fine from the ground but has corroded internally
- →4G/5G interference that's overwhelming your system
A professional antenna technician has the tools to trace signal through every part of your system and identify exactly where it's failing.
Most "no signal" issues can be diagnosed and fixed in a single visit. It's far less expensive than replacing your TV, which, for the record, is almost never the actual problem.
FAQ: No Signal on Your TV
Common questions about the "No Signal" message.