For the full breakdown, see our best Antenna For TV guide.
Over-the-air (OTA) local TV uses an antenna connected directly to your television’s antenna input — no cable subscription, monthly fee, or internet connection required. You pay once for the antenna, then pull in broadcast channels for free. The whole process boils down to three moves: place the antenna where it can see the towers, plug it into the TV, and run a channel scan so the tuner finds every available station.
What You Need Before Starting
Before you climb a ladder or rearrange furniture, confirm your TV can actually receive antenna signals. If your TV lacks that port, you’ll need a converter box or external tuner that accepts antenna input and connects via HDMI.
The other requirement is knowing where your local broadcast towers sit. Free tools like AntennaWeb or RabbitEars show tower locations and distances for your address. This matters because antenna reception depends heavily on direction, distance, terrain, and obstructions — a hill or a row of tall trees between you and the towers can block signals entirely.
When you’re ready to shop, the table below breaks down the main antenna types.
| Antenna Type | Typical Range | Best For |
|---|---|---|
| Flat indoor | 15–35 miles | Urban and suburban homes near towers |
| Amplified indoor | 35–60 miles | Weak-signal areas where a flat model struggles |
| Outdoor rooftop | 50–80+ miles | Rural areas or heavy obstruction |
| Attic-mounted | 40–70 miles | HOA restrictions or rental situations |
| Multidirectional | 30–50 miles | Towers in multiple directions |
| Directional Yagi | 60–80+ miles | Distant towers in one direction |
| Outdoor with amplifier | 70–100+ miles | Extreme rural installations |
Step-By-Step Installation for Indoor Antennas
Indoor antennas are the easiest route and work well when you live within roughly 35 miles of broadcast towers. Here’s the full sequence.
1. Assemble the antenna. Unfold or snap together the elements exactly as the product manual directs. Flat models may need their attached adhesive strips or stand attached before placement.
2. Choose a high, window-facing spot. Mount the antenna as high as practical — the top of a bookshelf or a wall near a window beats a low TV stand. Aim it toward your local broadcast tower direction. If you don’t know that direction, the antenna finder tools from the previous section will tell you.
3. Connect the coax cable. Attach the coaxial cable from the antenna to the TV’s ANT IN, RF IN, or Antenna port. Older TVs use a screw-on connector; newer sets often need a coax adapter. Finger-tighten the connection — over-tightening damages the threads.
4. Switch the TV input. Press the Input or Source button on your remote and select Antenna, Air, or Broadcast. This is the step people skip, and it’s the most common reason scans find zero channels.
5. Run a channel scan. Open your TV’s settings menu, find Channel Setup or Broadcast Setup, and select Auto Scan or Auto Program. The TV hunts for every available broadcast channel — this takes 5 to 15 minutes depending on the set. When the scan finishes, you’ll see a channel list populating your guide.
6. Retest before fastening permanently. If reception is weak, move the antenna in small increments — a few inches one way can make or break a signal. Rescan each time you move it. Once you find a spot that pulls in the channels you want, secure the antenna there permanently.
Step-By-Step Installation for Outdoor Antennas
Outdoor antennas deliver stronger reception and pull in more channels at greater distances, but the installation demands more care — especially around safety and grounding.
1. Secure the mast and mount. Attach the antenna elements to the mast per the product manual, then fasten the mast to your roof eave or a dedicated mounting pole. Use stainless steel hardware rated for wind loads.
2. Point the antenna at the towers. Use a compass or a phone app to find the broadcast tower direction from your location. Rotate the antenna toward that heading before tightening the mounting brackets.
3. Route the coax indoors. Run the coaxial cable from the antenna down the mast, then along the roofline to your entry point. Create a drip loop — a small U-shaped sag in the cable before it enters the wall — so water runs off instead of into your house.
4. Ground the system. Connect a copper grounding conductor from the mast to a ground block, then bond that to your home’s electrical grounding system. If you’re unsure how to do this correctly, hire a licensed electrician — this step protects your equipment and your family from lightning risk.
5. Connect and scan. Attach the coax to your TV’s ANT IN port (or to a splitter or distribution amplifier if you’re feeding multiple TVs). Switch the input to Antenna and run the channel scan exactly as described for indoor units. Rescan after any antenna adjustments.
6. Weatherproof the connections. Wrap exterior coax connections with weatherproof tape or use sealed connectors. Water ingress is a leading cause of signal degradation on outdoor antennas.
Fixing Poor Reception and Common Mistakes
If your scan finds fewer channels than expected, the first suspect is a wrong input setting — double-check that the TV is on Antenna/Air/Broadcast, not Cable. During scanning, a TV set to Cable will look for a signal that doesn’t exist and return zero channels.
Next, revisit placement. Indoor antennas are finicky about location; a window-facing spot a few feet higher often transforms reception. For outdoor units, confirm the antenna still points at the towers and nothing new blocks the path — seasonal tree growth or a neighbor’s new structure can degrade signals. Rescan after any change, and rescan periodically even without adjustments, because stations occasionally change their broadcast parameters.
One honest limitation: reception depends on your specific geography. Tower direction, distance, terrain, and obstructions all play a role, and small location changes can materially affect channel availability. If you’ve tried several spots and still miss channels, an outdoor or attic-mounted antenna usually closes the gap.
FAQs
Do I need internet for an over-the-air TV antenna?
No. An OTA antenna pulls broadcast signals directly from local towers through the air, so it works completely offline. You only need the antenna, a coax cable, and a TV with a built-in tuner. Internet is irrelevant to reception, though some smart TVs combine antenna channels with streaming apps on the same interface.
Why does my TV find no channels during a scan?
The most common cause is having the input set to Cable instead of Antenna, Air, or Broadcast during the scan. The second is antenna placement — a low spot or a location blocked by walls can prevent the tuner from seeing any towers. Double-check the input, then move the antenna higher or closer to a window and rescan.
Is a $20 antenna as good as a $100 one?
Not necessarily — price correlates with range and build quality, but location matters more. A $20 flat antenna works well if you live within 15–30 miles of towers with clear line of sight. Beyond that range or with obstructions, a more expensive amplified or outdoor model earns its cost. Check your tower distance before spending.
References & Sources
- FCC. “Installing Consumer-Owned Antennas and Satellite Dishes.” Official consumer guidance covering antenna placement, safety, and grounding best practices.