This Technical Code has been developed to specify the minimum requirements for Digital Terrestrial Television (DTT) active indoor antenna (DTT active indoor antenna) for the optimum reception of Digital Terrestrial Television (DTT) signal in the frequency range of 470 MHz - 742 MHz, Ultra High Frequency (UHF) during pre-Analogue Switch Off (ASO) and in the frequency range of 470 MHz - 694 MHz (UHF) during post-ASO.