The EU’s decision to reorganise the radio-electric spectrum within 28 members countries for the launch of 5G services will require 15 million homes in Spain to retune their TDT (Televisión Digital Terrestre) aerials.

TV channels will have to move to a lower band bringing together a new TDT / DTT migration. Spain will have to readjust its TDT / DTT aerials once again in 2020 due to the release of the 700 MHz band for 4G and 5G Internet services in the forthcoming reorganisation of the radio-electric spectrum that Brussels is finalising.

Currently the 700 MHz band (between 694 and 790 MHz) is being used by TDT / DTT, which should move to a lower band to free it up driving to a new TDT / DTT retune of aerials, and even new TV sets before June 2020 affecting 15 million homes.

Spaniards already faced a TDT / DTT retune in the final quarter of 2014 that was completed in March 2015 to leave the 800 MHz band to mobile companies for 4G services with a cost of €286 million. Previously, in 2005, the analogue switch-off took place with the first DTT migration.

source: advanced-television.com/2016/05/27/another-dtt-retune-in-spain/

What is TDT in Spain?

TDT (Televisión Digital Terrestre) in Spain refers to Digital Terrestrial Television, the country’s free-to-air digital TV service. Introduced in 2005, TDT replaced the older analog system, offering higher-quality broadcasts, more channels, and improved sound and picture quality. It provides access to a wide range of national, regional, and local channels without the need for a satellite or cable subscription, only requiring a digital TV or a set-top box.

TDT also allows for interactive services, subtitling, and electronic program guides (EPGs). It has expanded the availability of both standard and high-definition channels, making television more accessible across Spain.

The UK equivalent of TDT is Freeview.