By 15 September, 121 broadcasters had changed frequencies, out of a total of 243, and the migration process is halfway through, Anacom said in a statement.

The second phase of the change in the network of digital terrestrial television (DTT) transmitters, necessary to develop 5G (Fifth Generation Mobile Internet), began in February, was suspended in March due to the Covid-19 pandemic, was resumed in mid-August and should be concluded in December.

Last week, the migration of broadcasters to DTT began in the region of Viseu and Dão Lafões and the process in the eight broadcasters runs until 6 October.

On 18 September, the migration process of DTT begins in the region that covers the districts of Guarda, Bragança and Vila Real (the eastern half) and the counties further east of the district of Viseu.

The effects of migration may have already been felt in some areas of this region, since there are emitters from another region that impact on this one, namely Carpinteira and Reitoria, in Covilhã.

In the communiqué, Anacom points out that the DTT migration does not cover everyone and that when the transmitter changes frequency, the TV screen turns black, without image, and the TV or DTT decoder has to be re-tuned.

Anacom reminds users that it is not necessary to replace or reorient the antenna, change the TV or decoder or subscribe to pay TV services, only condominiums/buildings with single-channel amplifier installations may have to replace them.

"If you are unable to tune the equipment yourself or with the help of the free hotline 800 102 002, Anacom will arrange a visit to the person's home to tune in, with its technicians and free of charge", it explains.