More and more users are abandoning the traditional broadcasts of digital terrestrial television or DTT and moving to different streaming services or DTT channels without having to use antennas on the roof, the reality is that this television broadcast medium has a very large audience.

However, enjoying DTT can become even more complicated during the summer season due to the generally poor broadcast quality this technology offers and the usual setup issues. “Effect fading“ this further worsens signal reception.

what is the fading effect

Word fading comes from english and its meaning fading or weakeningIn some parts of Spain during the summer season and especially in a heat wave spanning many days.

High temperatures have a clear effect on large bodies of water such as seas and oceans. more salt water evaporates and condenses in the atmosphereAt certain times of the day, the amount of water particles in the air increases, especially in power plants where the air is warmer and the sun’s rays are perpendicular.

This increased condensation change in propagation of electromagnetic signals and therefore now also has DTT which can reach greater distances by interfering with the fields of other repeaters and thus generating interference.

As the amount of water evaporated during the day changes, the interference levels and changes in propagation conditions are also different at different times. pixelations, small cuts or the inability to tune some DTT channels directly.

At night, when temperatures drop Evaporation is reduced and with it these interferences are reduced, which makes it possible for us to enjoy all the stations as before.

In addition, high temperatures can also negatively affect the operation of the dipole of the receiving antenna, something that contributes to our possession. reception problems in heat wave.

Where the fading effect occurs most and possible solutions

Since it is an event that occurs by the evaporation of salt water, occurs mainly in coastal areaswhere there are houses relatively close to the beach and especially when the DTT signal needs to be received crossing a large area of ​​water until it reaches the user’s antenna.

What can we do to prevent or minimize the problem? well, for example try reorienting the antenna Depending on the location of our antenna on the roof it will probably need to be done by a professional to point a DTT transmitter with its back facing the sea and not sending a signal over the water.

we can also try buy a more powerful external receivera more router antenna pointing more precisely to the issuer or directly Give up DTT broadcasts access via the antenna and over the Internet as we mentioned in previous articles.

More info | Professional DTT
Cover image | Johnny Sabadin