How to watch free over-the-air TV with an antenna

Many of the most-watched channels, including national networks, local news and major sports events, are still broadcast free over the air. With an antenna and a TV that has a built-in tuner, which almost all do, you can watch free over-the-air TV with no subscription. Broadcast pictures are often excellent, because they aren't squeezed through an internet connection.

This guide uses US examples (ATSC broadcasting). The same steps apply in countries using DVB-T/T2 or other standards. Use your national broadcaster's coverage checker in place of the FCC tools.

Why free over-the-air TV is still worth considering

Over-the-air broadcasting has several advantages streaming can't match:

• No subscription. Once you own the antenna, the channels are free.
• No internet needed. Broadcasts keep working during internet outages, which is valuable during storms and emergencies.
• Low delay. Live sport and events usually arrive ahead of most internet streams.
• Picture quality. Broadcasts aren't squeezed to fit a home internet connection. Quality depends on the broadcaster's own settings and your signal.

The trade-off is that you get only the channels broadcast in your area, and reception depends on where you live.

Step 1: Check which channels you can receive

Enter your address in the FCC's DTV reception maps. It lists nearby stations, their signal strength and the direction of each transmitter. Make a note of:

• Which stations are strong (likely receivable indoors) and which are weak (may need an outdoor antenna)
• The direction the transmitters are in
• Whether stations use VHF or UHF, because some flat indoor antennas pick up VHF poorly

Reading the reception map

The FCC's map gives each station a signal strength rating. The key column is often labelled signal strength or shown as colour bands. Stations in the strongest band can often be received with a simple indoor antenna. Weaker bands may need an attic or outdoor antenna pointed in the right direction.

Also look at the RF channel, the actual broadcast frequency. A station may be shown to viewers as "channel 4" but actually broadcast on RF channel 7 or 30. This matters when choosing an antenna, because:

• VHF: RF channels 2–13
• UHF: RF channels 14–36

Many compact indoor antennas are optimized for UHF and can struggle with VHF stations. If an important station is on VHF, choose an antenna rated for it.

Step 2: Choose an antenna

Advertised mileage figures are marketing estimates. Your terrain, buildings and transmitter power matter more. An amplifier helps with long cable runs or splitting to several TVs, but it can make things worse if signals are already strong.

Amplifiers and splitters

A preamplifier sits near the antenna and boosts the signal before it travels down the cable. It helps with long cable runs and weak signals. It can hurt when signals are already strong, because overloading the tuner causes errors.

A splitter sends one antenna's signal to several TVs. Each two-way split reduces the signal reaching each TV. If you feed several TVs, a distribution amplifier after the antenna compensates. Start without amplification and add it only if tests show you need it.

Step 3: Place the antenna

• Higher is better. Mount it as high as possible.
• Near a window facing the transmitters, if indoors.
• Away from metal and electronics, including the back of the TV itself.
• Test several positions. Small moves can make a big difference.

Outdoor installation safety

Outdoor antennas are the most effective option, but installing them involves ladders, roofs and electrical safety:

• Keep well clear of power lines. Never install an antenna where it could fall onto or touch overhead lines.
• Ground (earth) the mast and coaxial cable according to local electrical codes, to protect against static and lightning.
• Work with a second person, and consider a professional installer for rooftop mounts.
• Check local rules. Some homeowners' associations and rental agreements have rules about outdoor antennas. In the US, the FCC's Over-the-Air Reception Devices rule limits many of those restrictions. Check how it applies to your situation.

Step 4: Scan for channels

1. Connect the antenna to the TV's antenna/RF input.
2. Open the TV's settings and find Channels, Broadcasting or Tuner.
3. Choose Antenna or Air (not Cable) as the signal source.
4. Run Auto scan or Channel scan.

Rescan whenever you move the antenna, and every few months, because stations sometimes change frequencies.

Step 5: Fix poor reception

• Pixelation or dropouts usually mean a weak or unstable signal. Try a higher position or a better antenna.
• Missing a specific station? Check whether it's VHF, and whether your antenna is designed for it.
• Signal changes with weather or foliage: a higher or outdoor antenna usually helps.
• Too many TVs on a splitter: each split reduces signal. Use a distribution amplifier.

Questions people often ask

Do I need a special "HD" or "4K" antenna?

No. An antenna receives radio frequencies, not resolutions. Labels like "HDTV antenna" are marketing. What matters is the frequency bands it covers (VHF/UHF), its gain and where you place it.

Why do some channels disappear in the evening or in bad weather?

Signal conditions change with weather, foliage and even temperature. Marginal channels can drop out. A higher antenna position or a directional outdoor antenna usually helps.

Can I watch antenna TV on my phone or other TVs?

Yes, with a network TV tuner, which turns broadcasts into streams on your home network.

Will my current TV keep working as broadcasting changes?

In the US, stations are gradually adding ATSC 3.0 broadcasts. As long as stations continue to simulcast in today's ATSC 1.0 format, existing TVs keep working. See our coverage of the FCC's transition proposal.

Worked example: choosing an antenna from the map

Imagine your reception map shows:

• Three stations with strong signals, all from transmitters about 15 miles to the north, on UHF
• Two stations with moderate signals, 35 miles to the east, one on VHF
• One weak station, 50 miles to the south

A reasonable plan:

1. Start with a good indoor or attic antenna facing north, near a north-facing window. That should bring in the three strong stations.
2. For the eastern stations, an attic or outdoor antenna with VHF capability, aimed between north and east or adjusted to favour east, may capture all five.
3. The weak southern station may need a directional outdoor antenna aimed south, possibly with a preamplifier. Decide whether that station is worth the extra effort.

This approach avoids buying the biggest antenna by default and makes clear which channels drive the decision.

Antenna TV in other countries

The basics are the same worldwide, but standards and tools differ:

• Europe and many other regions use DVB-T or DVB-T2. Many TVs support DVB-T2, but older sets may only support DVB-T.
• The UK has Freeview, which publishes a postcode checker for reception.
• Japan, Brazil and others use ISDB-T variants.
• China uses DTMB.

Check your TV's specifications for the standard used where you live, and use your national broadcaster's or regulator's reception checker in place of the FCC map.

Accessibility on broadcast TV

Broadcasts often include closed captions and, for some programmes, audio description or secondary audio. Turn these on in your TV's accessibility or caption settings. Captions on broadcast TV are usually controlled by the TV, not by an app, so the setting is in the TV's main menu.

Common mistakes

• Choosing an antenna by advertised mileage. Terrain, buildings and frequency bands matter more than the box's range claim.
• Placing the antenna behind the TV. Metal and electronics block signals. Move it to a window or higher spot.
• Forgetting to rescan. After moving the antenna or when stations change frequency, channels disappear until you rescan.
• Adding an amplifier to strong signals. Overloading the tuner makes reception worse.
• Ignoring VHF stations. Some compact antennas struggle with VHF. Check the RF channels of important stations.
• Splitting to many TVs without amplification. Each split weakens the signal.

A quick setup checklist

• Checked stations at your address on the reception map
• Noted directions and VHF/UHF bands
• Chose an antenna suited to signal strength and bands
• Placed it high, near a window or in the attic, away from metal
• Ran a channel scan with the source set to Antenna/Air
• Adjusted position while watching signal strength readings
• Rescanned after final placement

Key takeaways

• Check the reception map first. It tells you which antenna and placement you need.
• Choose antennas by frequency band and signal strength, not by advertised mileage.
• Place the antenna high and away from metal, and rescan after every adjustment.
• Use amplifiers and splitters carefully. More amplification is not always better.
• A network tuner can bring antenna channels to every device in the home.

Going further

• Record shows with a DVR. See DVR options for live TV.
• Watch on every device in the house with a network TV tuner.
• NextGen TV (ATSC 3.0) is rolling out in the US. Check whether your TV supports it, and read our coverage of the FCC's transition proposal.

Sources and further reading

• FCC DTV reception maps
• FCC: Antennas and digital television
• ATSC: NextGen TV