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A TV antenna gives you free local channels, often in better picture quality than cable because the signal is less compressed. Results depend more on your location than on the antenna label. This guide explains how to choose and place an antenna and avoid the claims that are not realistic.

This guide is based on product listings and general TV knowledge rather than our own testing. Specs and features vary by model and year, so confirm the details on the product page.

By the Reviewstook Editorial Team. Last updated: October 31, 2026.

What an Antenna Gets You

An antenna picks up over-the-air broadcasts from nearby towers, which in the US include major networks and many local and sub-channels. Almost all modern TVs include a digital tuner for this. You need no subscription for these channels.

Check Your Location First

The key factors are distance to the broadcast towers, the direction of the towers and obstacles such as hills, buildings and trees. Use a reception map tool, such as the FCC or other free signal map sites, to see which stations are available at your address and which direction they are in.

Indoor vs Outdoor

Indoor antennas are cheap and easy and suit homes within a moderate distance of the towers. Outdoor and attic antennas are bigger and receive weaker signals, and they help in rural areas or when towers are in different directions. Attic installs avoid weather but lose some signal through the roof.

Amplified or Not

An amplifier (preamp) boosts the signal but also boosts noise. It can help with a long cable run or several TVs, but it can overload the tuner when you are close to a tower. Try without it first. Be skeptical of long range claims such as “150 miles”, since real range depends on terrain and tower power.

VHF, UHF and ATSC 3.0

Most US channels are on UHF, and some are on VHF, so check which your local stations use. ATSC 3.0 (also called NextGen TV) is a newer broadcast standard in some markets, and you need a compatible tuner to receive it. A normal antenna can receive both, but the TV tuner decides what you can watch.

Placement and Setup Tips

  • Put the antenna as high as possible and near a window facing the towers.
  • Keep it away from metal, electronics and thick walls.
  • Use short, good-quality coax cable.
  • Run a channel scan after every move and try a few spots.
  • Rescan every few months, since stations change channels.

Troubleshooting

If channels break up, move the antenna, try a different window, remove the amplifier or add one, or change the cable. Weather and sunspots can also affect reception. Try both ends of the cable to be sure it is firmly connected.

Quick Antenna Checklist

  • Checked a signal map for your address.
  • Confirmed your TV has a digital tuner, or ATSC 3.0 if you want NextGen TV.
  • Planned a high spot near a window facing the towers.
  • Ran a channel scan and rescanned later.

Frequently Asked Questions

Do I need a special antenna for 4K?

No. Antennas are not 4K or HD rated. The picture depends on the broadcast.

Why do I get fewer channels on some TVs?

TV tuner quality varies, and location and antenna matter more.

Can one antenna feed several TVs?

Yes with a splitter, but each split weakens the signal, so you may need an amplifier.

Is an indoor antenna enough?

In many cities yes. Check your signal map and try before investing in an outdoor antenna.

Bottom Line

Check your signal map, choose an indoor antenna in cities and an outdoor or attic one in rural areas, place it high near a window and rescan channels often.