Chapter 4
IN THIS CHAPTER
Understanding what equipment you need to do the over-the-air thing
Choosing the OTA antenna that's right for you
Installing your antenna and hooking it up to your TV
Learning how to get the best antenna reception
If you want to watch live local broadcasts, you don't necessarily have to invest in new equipment. As I explain in Chapter 5, streaming services enable you to watch live TV using your existing Internet connection and Wi-Fi network. These services are convenient but not cheap.
What if you want to watch live local broadcasts for free? Then you need to go the over-the-air route, and that route requires some new electronics. Fortunately, you're not looking at a substantial investment here. Sure, you could spend big bucks if you want to, but a modest investment is all that's required for most people. In this chapter, you learn what equipment is required and how to make smart purchases.
What about getting the equipment installed? With some exceptions. The good news is that you don't need to bring in an expert to hook up everything. Most of the connections are straightforward, and I tell you everything you need to know in this chapter.
Before you get started, be sure to check that you can even receive OTA TV signals in your area. This won't be an issue if you live in or near a major urban center, but the farther away from civilization you reside, the fewer over-the-air TV signals you'll receive. There's no point in investigating OTA equipment if no OTA signals are in the air where you live. See Chapter 3 to learn how to check what channels are available in your locale.
That said, let's take a quick look at what's required to receive and watch over-the-air TV broadcasts. I start with the watching part, which you can do using any of the following devices:
TV: Most people watch over-the-air programs on a TV. You don't need anything fancy, just a TV with an F connector (also called an RF port) for the antenna, as shown in Figure 4-1, and a built-in digital tuner. Almost every TV sold since early 2007 has such a tuner. If you have an older TV without a digital tuner, you'll need to spring for an external digital TV tuner or DVR.
If you're looking to purchase a new TV, be careful. Some manufacturers are selling devices that look a lot like TVs but are marketed as displays. What's the diff? A display has no F connector for your antenna's coaxial cable, nor does it have a tuner! Check the specs before buying to make sure the set has both an F connector and a built-in digital tuner.
FIGURE 4-1: Your HDTV antenna connects to your TV's F connector.
To receive over-the-air TV signals, you need some or (rarely) all of the following:
Signal amplifier: Boosts the antenna signal. If you live far from an urban center and the resulting over-the-air TV signals are weak, a signal amplifier can help improve the reception into something watchable.
If you live in an area that gets plenty of strong signals, you might be tempted to add a signal amplifier anyway as a way of boosting weaker signals. Paradoxically, adding the amplifier will probably make all your signals worse because your already strong signals will become too strong and the tuner won't be able to handle these overly boosted signals — a phenomenon known as overdriving the tuner.
LTE filter: Removes the interference caused by nearby LTE cellular network towers and devices. This doohickey is optional, but if you live in an urban center with all its attendant cellular noise, the $10 or $15 investment is probably worthwhile.
Some HDTV antennas come with a built-in LTE filter, so you might want to add that feature to your antenna wish list.
Coaxial cable splitter: Splits the signal from your antenna so you can route the signal to multiple devices. Most splitters have two, three, or four outputs. Note that you lose signal strength when you use a splitter. The better splitters sacrifice only 3.5db (decibels) of power (compared to 7db for some splitters), so check the specs.
If you get a splitter and find that you're not using one or more of the outputs, be sure to plug every unused output with a little device called a terminator (insert Arnold Schwarzenegger joke here) to prevent signals from leaking from the open outputs.
Here are a few tips for buying coax cable:
Don't buy a cable if you don't have to. Many antennas come with their own coaxial cable, so choose your antenna first, and then shop for a coaxial cable if the antenna doesn't provide one. That said, there's a good chance the coaxial cable that comes with the antenna will be either too short or too cheap (see the next item in this list). In that case, make sure the cable is detachable from the antenna, which will enable you to substitute your own (better quality) cable.
Okay, enough jawing. It's time to get serious about your over-the-air TV future and start shopping for the most important piece of equipment: a cup holder for your reclining chair. Kidding! I speak, of course, of the antenna you need to intercept all those over-the-air TV signals whizzing overhead.
The first thing you need to know about over-the-air TV antennas is that they come in three main form factors:
Location |
Style |
Description |
---|---|---|
Indoor |
Flat |
Usually a thin square, rectangle, or circle designed to be mounted in a window or similar glass surface. |
Indoor |
Tabletop |
Usually thin, cylinder-like, and a few inches tall, with a base that enables you to sit the antenna on a table or desk. |
Outdoor |
Various |
Usually fairly large and designed to be mounted on a roof, in an attic, on a pole, or on the side of a building. |
Usually, one of your first antenna decisions is the range you require. Here, range refers to the most distant transmission signal that the antenna can still pick up. For example, if an antenna is marketed as having a 30-mile (50-kilometer) range, it can usually pick up signals from broadcast towers up to 30 miles (50 kilometers) from your location.
If you've searched for nearby stations using a tool such as TV Fool (see Chapter 3), you already have a good idea of the distance to the farthest station you want to watch. Use that value as your guide when looking for an antenna. For example, if a station you want to watch is 45 miles (72 kilometers) away, you'll want an antenna with a range of at least 50 miles (80 kilometers).
An important antenna buying consideration is the choice between an indoor or an outdoor antenna. How do you make that choice? Here are some factors to bear in mind:
Most people who live in an urban locale opt for an indoor antenna because it's cheaper and easier to install than an outdoor antenna, and the range is usually more than enough to pick up quite a few stations. The farther away from an urban center you live, the greater the need for an outdoor antenna.
What does an amplifier do? Here's an analogy: First, picture water coming out of a garden hose at a steady rate with the tap turned on full. If you want to increase the water pressure (perhaps to clean a stain on your deck) but the tap is on full, what can you do? That's right: You use your thumb or a finger to partially block the end of the hose, which causes the water to shoot out with greater pressure.
That's essentially what an antenna amplifier does with an incoming over-the-air TV signal: It increases — or amplifies — the power of that signal.
When deciding whether to get an amplified antenna, the most important fact to bear in mind is this: Amplifiers boost power only for signals that you already receive; they don't do anything for signals that are too weak to even reach your antenna. In the garden hose analogy, when you partially block the hose with your thumb, you don't get more water; instead, you boost the power, so to speak, of the existing water stream.
If you live in a rural area and the station you want is 100 miles (160 kilometers) away, an amplifier isn’t going to help you get that station. Instead, you need an amplifier if the stations you do receive are weak and tend to cut out. In that case, you have a few choices:
Note, too, that all amplifiers require electrical power, so you'll need to factor the proximity of an electrical outlet into your amplified antenna installation plans.
I mention in Chapter 3 that the signal analysis results provided by the TV Fool website include a radar chart that shows you the direction of each broadcast tower from your location. The pattern you see in that chart determines another antenna feature:
FIGURE 4-2: Get a unidirectional antenna if your incoming signals come more or less from one direction.
FIGURE 4-3: Get a multidirectional antenna if your incoming signals come from all over the place.
All over-the-air TV transmissions bounce off buildings and any other objects between the tower and your antenna. Some of these bounces are redirected to your antenna. A unidirectional antenna ignores these reflected signals, but a multidirectional antenna picks them up, which can result in a common problem called multipath distortion.
If you run a TV signal analysis report using TV Fool (www.tvfool.com
; see Chapter 3), the results include a breakdown of where the available signals appear in the VHF and UHF frequency bands (see the sidebar “UHF versus VHF: Let's Talk Radio,” earlier in this chapter). Figure 4-4 shows an example.
FIGURE 4-4: Available channels appear in the VHF and UHF bands.
Why is this important? Because if you want to watch channels in both the VHF and UHF bands, you need to get an antenna that can pick up both VHF and UHF signals. Many modern antennas are optimized for only the UHF band, so if you're not careful, you might end up with an antenna that can't pick up VHF stations. Here's what to look for:
Although the number of people switching to over-the-air TV has slowed in recent years, for a while it seemed like every Tom, Dick, and Harriet was cutting the cord and settling down to watch shows over-the-air. That surging popularity of over-the-air TV meant that lots of people were in the market for an HDTV antenna. And whenever you have a surging marketplace, you inevitably have scammers and unscrupulous marketers looking to take advantage.
So, to help you avoid getting scammed or duped, here are a few things to watch out for when you're researching an HDTV antenna:
After you receive your antenna, you'll no doubt be itching to get it connected to your TV or DVR. Who can blame you? Not I, dear reader, not I. However, you've just spent a bunch of time figuring out the best antenna for your needs (right?), so instead of leaping directly to the connection stage (which I cover later in “Connecting Your Antenna”), it's crucial to take time now to make sure your antenna is installed correctly. A proper installation can often make the difference between picking up just a few stations or a few dozen.
The main benefit of going the indoor route for your antenna is that installation is generally a breeze:
Antenna type |
Instructions |
---|---|
Flat antenna |
Position the antenna in a window or other glass surface (such as a patio door). You can rest the antenna on a sill, or you can use two-sided tape (some antennas include pads with two-sided adhesive) to stick the antenna to the glass surface. |
Tabletop antenna |
Attach the antenna to its stand and then place the antenna and stand on the table or desk you want to use. |
Here are a few tips to bear in mind when positioning your indoor antenna:
Experiment. You'll need to play around a bit to find the antenna position that brings in the most channels and the strongest signals. Don't be afraid to try lots of different positions to see what works and what doesn't. Remember to rescan your channels each time you change the antenna position. (See “Scanning for OTA channels,” later in the chapter.)
Installing an outdoor antenna generally involves the following steps:
Attach the mount to a surface.
The surface might be your roof, an exterior wall, a pole, a balcony railing, or an attic wall.
Unless you're very handy around the house, I probably lost you at Step 3. If so, not to worry, because it's easy enough to hire someone to perform all of these steps for you.
However, Steps 3 through 5 are necessary only if your home doesn't have an existing TV infrastructure. My assumption in this book, though, is that you've recently (or soon will) cut the cord with your cable company. Since you had (or have) cable TV, coaxial cables, coaxial wall plates, and other TV stuff are already installed.
You can take advantage of that existing infrastructure to make it much easier to install your outdoor antenna. All you need to do is find the main cable that enters your home and connect your antenna to that cable. That task will be either easy or hard:
Here are a few tips to bear in mind when positioning your outdoor antenna:
Height is your friend. Position your antenna as high as possible to get the strongest signals with the least interference.
Assuming you have your OTA antenna installed, your next chore is to connect the antenna to whatever device you want to use to watch over-the-air TV. That device will usually be your TV, but it could also be multiple TVs, a computer, a smartphone or tablet, or a DVR. The next few sections go through the details of each connection type. But first, you need to know how coaxial connections work.
After you have all your equipment gathered around you, combining all those doodads into a working over-the-air TV configuration means connecting them together. Except for power, all the connections you make are coaxial, meaning they involve fastening together one or more coaxial cables as well as coaxial devices such as extension adapters, splitters, amplifiers, filters, and terminators.
The endpoint of every coaxial cable and device is called an F connector (or sometimes an F-type connector), and there are two types, as shown in the following table:
F connector |
Type |
Description |
---|---|---|
|
Plug |
A pin in the center, threads on the inside, and a rotatable nut on the outside |
|
Jack |
A socket in the center and threads on the outside |
Every coaxial connection involves inserting a plug F connector into a jack F connector, as follows:
Rotate the plug F connector's outside nut (clockwise, if the plug is facing away from you) until you can't turn it any more.
You're connected!
The simplest connection you can make in your OTA setup is to connect your antenna to a single TV. That connection consists of running the antenna's coaxial cable — either directly from the antenna itself or indirectly from a wall plate connected to an outdoor antenna — to the jack F connector on your TV. The jack F connector usually has one or more of the following labels:
Figure 4-5 shows an indoor flat antenna connected to a TV's jack F connector and ready to be installed.
FIGURE 4-5: Connect your antenna’s coaxial cable to your TV’s jack F connector.
If you want to distribute your OTA signal to two or more TVs (or other devices), you need a coaxial splitter. A splitter is a device that has a single jack F connector input port (usually labeled In) and two or more jack F connector output ports (usually labeled Out). Figure 4-6 shows an example.
FIGURE 4-6: A garden-variety coaxial splitter.
The idea is that you connect your antenna's coaxial cable to the splitter's input port, and then run coaxial cable from the output ports to each device that you want to receive the antenna's signals.
If you're splitting your signal and one of the output devices is far away (say, more than 50 feet, or 15 meters), the signal might degrade too much for it to be usable on that device. In that case, you might want to invest in a distribution amplifier, which is a splitter that boosts the signal as it goes through each of the amplifier's output ports. Distribution amplifiers are powered devices, so you'll need a nearby power outlet.
Long gone are the days when a TV was the only screen in the house. Nowadays, our faces are aglow with all kinds of screens, including computer monitors. But can you watch over-the-air TV on your computer?
The short answer is, no, you can't, because most computers are missing a crucial bit of tech: an HDTV tuner. Without that tuner, your computer doesn't have the faintest idea what it's supposed to do with an over-the-air TV signal.
Fortunately for you, the long answer is, yes, you can, as long as you augment your computer with an external HDTV tuner, which is a device that has a USB connector on one end and a jack F connector on the other (see Figure 4-7). Plug the device into an available USB port on your PC, run your antenna's coaxial cable to the tuner's jack F connector, and you're good to go.
FIGURE 4-7: An HDTV tuner enables you to view over-the-air TV on your PC.
If you want to watch over-the-air TV on your smartphone or tablet, you have a couple of choices:
If you want to distribute your over-the-air TV signals to multiple devices scattered throughout your house, what are your options? Two come to mind:
These options work in a pinch, but neither is ideal. A much neater, more flexible, and more modern solution is to take advantage of something you probably already have: a Wi-Fi network. This solution requires an HDTV tuner or DVR that can connect to your Wi-Fi network. Setting everything up generally involves these steps:
Install the device app on any compatible machine.
Compatible machines might be an iOS or Android mobile device or a streaming device such as a Roku player or Amazon Fire TV.
Getting free HD channels just by installing an antenna is one of the best things about cutting the cord. Alas, those free signals lose their luster when the reception cuts in and out or falls off the digital cliff. That's just life in OTA City, right? Well, it might be if you live a really long way from the transmission towers you're trying to access. Otherwise, if your reception is problematic, try the following fixes:
After you have your antenna installed and connected to your TV, your final chore (not including microwaving some popcorn for the upcoming TV binging) is to convince your TV to scan for all the channels that are now available.
You might not have to do any manual scanning because many TVs are set up to automatically scan the connected coaxial cable for signals. If your TV doesn't scan automatically, however, you need to run a scan by following these general steps (the specifics of which vary depending on the make and model of your TV):
On your TV's remote, press the button that takes you to the TV's setup screen.
The button will be labeled Menu, Options, or Setup.
In the setup screen, navigate to and select the item for working with an antenna or over-the-air TV.
The item will be named something like Antenna, Channels, Live TV, or Broadcast.
Select the item for scanning, which will be named something like Channel Scan or Channel Tuning.
If your TV doesn't appear to have a dedicated feature for scanning OTA channels, use the Input button to select the Antenna input, which should start a scan automatically.
Your TV then proceeds to scan the incoming antenna signal for available channels and displays its progress, as shown in Figure 4-8. Note that the scan can take between 5 and 30 minutes, depending on your TV and configuration.
FIGURE 4-8: The screen shows the progress of the channel scan.