Over the Air TV Antenna Guide | Free Broadcast Setup

Cutting cable and picking up local stations with an over the air TV antenna is one of the fastest ways to save money on TV — but only if you set it up the right way. Most reception problems trace back to a few fixable mistakes: the wrong antenna type, a TV still set to the wrong input, or a skipped rescan. The good news is that the process takes about fifteen minutes once you know what to do.

What You Need Before You Start

Receiving free broadcast TV requires three things: a digital TV (or an analog set with a converter box), an antenna that picks up the signals in your area, and a TV that can scan for channels.

One of the most common pitfalls is buying a UHF-only antenna when your local broadcasters still transmit on VHF. Check your area’s station list before you buy. The FCC’s DTV Reception Maps tool shows which stations are available at your address and what signal strength to expect — strong, moderate, weak, or no signal.

How To Set Up Your Antenna: Step-By-Step

The correct order is to get the antenna connected, set the TV to antenna mode, then run a channel scan. Skipping the scan is the most common reason a new antenna appears to deliver nothing.

1. Connect the antenna to the TV’s coaxial input or to a digital converter box if you have an older analog TV.
2. Change the TV input to “Antenna” or “Air.” This setting is often buried in the TV’s menu, not on the remote’s main input button.
3. Run a channel scan. On most TVs, this appears as Scan, Auto-Scan, Auto-Program, or Channel Search in the setup menu.
4. Place the antenna high and near a window, facing the direction of the broadcast towers. Indoor antennas work best when mounted as high as possible, per typical manufacturer guidance.
5. Move and rotate, then rescan. Adjust the antenna position and run the scan again to compare reception at different locations.

After you find the best spot, run one final scan to lock in all available channels.

Rescanning and Common Mistakes To Avoid

Stations change their broadcast frequencies, and the FCC recommends that antenna users rescan periodically. This isn’t a one-time setup task — if you notice a channel suddenly missing, a rescan usually brings it back. Skipping this step is one of the most frequent reasons viewers think their antenna has stopped working.

Beyond rescanning, most setup failures come down to a handful of preventable errors:

• Buying a UHF-only antenna when your local stations also broadcast on VHF.
• Forgetting to set the TV input to Antenna or Air before scanning.
• Assuming one antenna placement works everywhere — signal strength varies by address, which is why the FCC’s mapping tool exists.
• installing an outdoor antenna without checking local electrical and building code requirements.

Outdoor antennas are more powerful, but they introduce safety considerations. A grounding block and proper grounding are commonly recommended, and driploop routing helps keep water from tracking indoors. Check your local, city, and state electrical codes before mounting anything outside. If you’re ready to shop, our roundup of the best antenna for free TV compares the top indoor and outdoor models for different signal ranges.

Frequently Asked Questions