Amplifier for TV antenna

In our age of digital technology, family evenings at the TV are gradually disappearing into the past. But even today for many people the TV remains the only window in the world and a way to diversify their leisure time. And how many unpleasant emotions is caused by a poor-quality television picture - smeared, floating, crumbling into individual pixels ... In most cases, these problems are treated quite simply - buying a special amplifier for the TV antenna. In how to select and install an amplifier for the TV antenna , let's try to figure it out together.

How to choose an amplifier for TV antenna?

In today's market, there are so many models of different TV signal amplifiers that at first glance it is difficult to decide which one is right for each particular case. In fact, everything is much simpler - for the right choice it is enough to know only a few parameters:

1. The approximate distance at which the nearest point is located that transmits a television signal. Depending on this distance, the amplification factor of the amplifier is selected. The maximum distance to the transmitting station can be of the order of 150 km. With a distance of less than 10 km, the amplifier is not needed at all - it's enough to choose the right TV antenna. It is absolutely wrong to "be greedy" and buy an amplifier, with a factor higher than necessary - such devices have the property of self-excitation and instead of a super-quality picture, in the end, only new interference will be obtained.
2. The range of frequencies at which the signal is transmitted is a meter, decimeter, etc. A good solution for any range will be the installation of a broadband amplifier for a universal antenna that is capable of receiving waves of any frequency. But a much better result will be obtained by installing a narrow-band amplifier operating in a certain range.
3. Type of installed TV antenna. For example, on television antennas of the trellis type, the signal is amplified with the help of swa amplifiers operating in the range of 49-790 MHz. But the very popular outdoor antennas for the TV Locus work well with LSA amplifiers.
4. When choosing it is worth paying attention to the noise figure of the amplifier - the smaller this parameter, the better the picture will eventually be on the TV screen.

How do I install an antenna amplifier for a TV?

Installation of modern models of amplifiers for the TV antenna is so simple that even a person completely remote from radio engineering can do it. A power supply is supplied to the amplifier, through which the amplifier is connected to the power supply network. The power consumption of such a device is quite small and is usually of the order of 10 W. When installing the amplifier directly on the antenna, a wiring diagram is used through a special adapter adapter. When using a similar device, the amplifier receives power directly over the coaxial cable, simultaneously with the television signal. This adapter has two outputs: one connects the cable from the TV antenna, and the other output is connected to the antenna connector of the TV, while the adapter itself is connected to the household power.

When choosing a place for installing an amplifier for an antenna, remember that the closer it is to the antenna, the better the signal will be. In this case, the amplifier must be reliably protected from the influence of atmospheric precipitation. In case of using indoor antennas with an amplifier for a TV, the latter can be installed either directly on the antenna or at a short distance from it.