You have just moved to a new home and when you turn on the TV, you realize that the channels are seen badly or worse are not seen at all! Have you tried to retune the TV several times but you have not been able to see the channels you were looking for well? Maybe you need to direct the TV antenna in order to take better channels. You can do this without having to call an antennista, just use a PC with a web browser and a smartphone! Find out in this guide how to orientate TV antenna completely independently without having to ask for the intervention of a technician.
CAUTION: accessing your TV antenna on the roof could be dangerous, make sure it is easily accessible and orientable, so that you can operate safely.
How to orientate TV antenna
To guide you easily in this operation, we have divided the article into the following sections:
Types of antennas, frequencies and bands
TV frequencies are broadcast in 3 different bands, band III (VHF between 175 and 225 MHz), band IV and V (UHF between 471.25 and 790 MHz). There are different types of antennas, some that can receive all the bands and some dedicated to the single band. The main factors that characterize an antenna are the I earn, or the "power" of the antenna and the directivity, that is the ability to select the direction of origin of the channel.
Before seeing how to orient TV antenna, identify the type of antenna in your possession. There can be three types of antenna for the television signal:
- Yagi antenna: the most recommended class of antennas for those who want to build a modern TV system, both for good signal reception (VHF or UHF), and for the treatment of disturbed signals and greater directivity. In more recent models, that is Combined Yagi Antennas, they can simultaneously receive VHF and UHF signals.
- Panel antenna:this type of antenna indicated in places where the signal comes from different directions, has a lower gain in terms of reception power and a much lower directivity. It is mainly used for UHF channels.
- Logarithmic antenna: the most common as well as the economic one, consisting of a series of dipoles of different lengths where the longer ones are used to receive the lower frequencies, while the shorter ones are used for the higher frequencies. This type of antenna can simultaneously receive the frequencies distributed on all three bands III, IV and V of the VHF and UHF, with an extremely linear and constant gain on all frequencies and poor directivity.
Understand the type of antenna useful, because the large antennas used by the broadcasters to send you the signal can emit signals at different frequencies and this information provided by the OTGTV service, as you can find out in the next part of the guide.
How to find repeaters / antennas that transmit the TV signal
Now that you know what kind of antenna you have on your house roof it's time to find i repeaters/antennas that transmit the TV signal in your area. Being very distant (even several kilometers) you will never be able to see them with the naked eye (except in rare cases), therefore to be able to find and correctly orientate the TV antenna you can rely on the OTGTV service, available from the following link.
LINK | OTGTV
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Select your region and your province, until you get to your city.
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Once you find your city you will see all the antennas available in the area, with all the channels included in the transmitted frequency.
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Identify the TV channels that do not catch, by indicating the data in the items:
The bold ones are the coordinates of the antenna (longitude and latitude) that transmits that packet of channels, fundamental for finding the transmitting antenna on Maps.
Find TV signal repeater by geographic coordinates
Once you have obtained the coordinates of the transmitting antenna, open Google Maps to enter the coordinates found; you can use the following link to access the service.
LINK | Google Maps
Enter the coordinates of the antenna in the search bar at the top, making sure to replace the commas with periods and start by entering latitude first followed by a space e then longitude.
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You will be shown the position of the transmitting antenna, usually at a high point (a mountain or a hill). Now you can get the position relative to your home by clicking on the red bookmark that will appear on the map with the right mouse button and using the item Measure distance.
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Click now on your home (you may have to remove some zoom with the mouse wheel) to understand the distance and orientation.
All the maps on Maps are shown already oriented towards North, so finding the antenna quite simple: if present in the lower part compared to your position in the South, while if positioned in the upper part of the map with respect to your position in the North. You can obviously repeat this measurement also for East, West and intermediate cardinal points (North-East, South-West etc.).
How to direct TV antenna towards the repeater
Now that you know where to find the antenna, go to the roof with your smartphone equipped with a compass and orient the antenna following the indications of it.
If you want to get even more precision in orientation you can use the free Compass app available at the following link.
DOWNLOAD | Compass
Now you just need to scroll the right sidebar and enter the destination by clicking on the button at the top right and entering the coordinates of the antenna.
<img class = "lazy lazy-hidden aligncenter wp-image-33682" data-lazy-type = "image" src = "https://www.giardiniblog.it/wp-content/uploads/2017/10/Destinazione. jpg” alt=”How to orientate TV antenna with compass application” width=”320″ height=”365″ data-lazy-/>
How to tune in TV channels
Once the antenna is correctly oriented, it is time to tune the TV so that it also sees the channels that previously were not seen or the channels that were viewed poorly. You can use both automatic and manual tuning, in the latter case you will have to enter the information you obtained from the OTGTV site that you have not used so far, namely:
Once you have found the television menu that allows you to manually set the channels (search in the instruction manual how to do manual tuning or manual storage) enter the channel number, frequency and polarization to tune the channels associated with these data.
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Which TV antenna to buy
If even by orienting the antenna you were unable to correctly view the TV channels, perhaps the time has come replace the antenna with a more performing one. Before purchasing a new antenna, make sure it has the LTE filter, given that the 800 MHz band now used by smartphones for the LTE signal and if picked up by the TV antenna can cause interference.
Below you can find the best TV antennas you can buy:
A good mixed antenna (double polarization) to capture any TV signal, even in the event of obstacles as the crow flies with the transmitting antenna. Easy to assemble thanks to the clip hooks, you don't even need a screwdriver.
<img class = "lazy lazy-hidden" border = "0" width = "400" height = "293" data-lazy-type = "image" src = "https://m.media-amazon.com/images /I/412xK9KkHVL.jpg” alt=”SH45 / TU-ANTENNA 45 ELEMENTS / Lte 4G FOR DIGITAL TERRESTRIAL UHF HD TV-READY TO USE IN ONLY 5 SECONDS”/>
Another excellent TV antenna with 45 adjustable elements, easy to assemble and connect to the system. It has an effective LTE filter to avoid interference with the signal destined for smartphones.
<img class = "lazy lazy-hidden" border = "0" width = "400" height = "500" data-lazy-type = "image" src = "https://m.media-amazon.com/images /I/41hN2wEkAWL.jpg” alt=”Maclean MCTV-905DVB-T DVB-T2 passive outdoor TV antenna, broadband roof antenna, VHF / UHF MUX8 antenna, LTE filter”/>
This by Maclean is one of the best TV antennas you can buy! It has an LTE filter to avoid interference, sufficient elements to capture all TV signals and ready for DVB-T2, the new digital terrestrial standard arriving in 2022.