When you need a TV antenna.
In most cities, the “horns” of the antenna above the TV (as well as the shamanic actions to set it up) have long become the property of history – cable television has almost completely supplanted terrestrial broadcasting. But here in country houses and, especially, in summer cottages, civilization has not yet penetrated everywhere, but I want to watch TV. And there are enough cities on the map of UK that have not yet fallen into the web of cable TV. And here television antennas are still relevant.
But the conditions for receiving a television signal are different everywhere – from one place the television center tower can be seen with the naked eye, from another – tens of kilometers to it. Antennas in all these cases will require different. And so that the purchase does not disappoint, you should find out the reception conditions at the place where the antenna is installed, determine its characteristics, and only after that go to the store. And get Projector Screens for easy to carry and big screens with HD video quality supported.
Characteristics of television antennas.
Accommodation is indoor and outdoor.
Indoor, as the name implies, are installed indoors, usually in close proximity to the TV. The undoubted advantage of indoor antennas is their ease of installation – in fact, most indoor antennas are easy enough to connect to a TV and this completes the installation of the antenna. Tuning indoor antennas is also much easier due to the fact that the quality of the “picture” can be monitored independently directly during the tuning process. The disadvantage of an indoor antenna is that, compared to an outdoor antenna of the same characteristics, an indoor antenna is guaranteed to provide a worse “picture” quality. In fact, you can only hope for good reception from an indoor antenna where the TV signal level is high enough. This area is in close proximity to the TV tower (3-15 km from it,
Outdoor antennas are more likely to receive a weak signal from a distant TV tower. For installation in a country house or in a country house, in a remote area from a TV tower, you should choose an outdoor antenna. Installation of such antennas will require some effort and an assistant will be required to set it up, but all costs will more than pay off with the quality of the “picture”, which no indoor antenna will be able to provide. When installing an outdoor antenna, do not forget about the importance of the correct installation height of the antenna – often the signal quality can be significantly improved by raising the antenna a meter and a half higher.
A TV signal booster
A TV signal booster may be needed if the antenna is not placed in a location with good reception. This may be when:
– the remoteness of the TV from the transmitting antenna of the television center or from the TV repeater;
– the presence of high-rise buildings and structures on the line between the TV tower and the TV;
– the presence on the line between the TV tower and the TV of production sites, electrical substations and other objects that emit electromagnetic interference;
– the location of the TV in a valley or behind terrain folds that prevent the propagation of electromagnetic waves.
Signal gain
Signal gain determines the ability of an antenna to amplify a weak signal. Gain is measured in decibels – the higher the gain level, the weaker the signal the antenna will be able to amplify.
The gain of each antenna is formed from its own (passive) and active, obtained using an amplifier. If the antenna’s own gain is low (the reason may be a simple design or poor-quality assembly), then the presence of a powerful amplifier in the kit will not help matters – yes, the output signal will be strong, but noisy. Therefore, do not chase after the maximum gain values - the design and placement of the antenna are no less important. In addition, manufacturers often go for tricks and even outright deception, indicating on the packaging the gain that does not correspond to reality.
Choice options.
If your TV is located in close proximity to the TV tower, and you are confident in the strength of the existing TV signal, choose a simple passive indoor antenna at a price of 240 to 1150 GBP .
If the TV signal level at the location of the TV is low, but you do not have the opportunity to install an outdoor antenna, choose an indoor antenna with an amplifier . This will cost 300-3000 GBP, but you should not choose models from the lower price range – a low-quality amplifier can do more harm than its absence.
If you are going to connect several TVs to the antenna, or the length of the antenna cable is too long, you will need an antenna with an active amplifier . They cost 400-3000 GBP, but again, you should not buy the cheapest ones. In addition, it would be useful to pay attention to the design of the antenna – it is good if the antenna’s own gain is large enough.
