Digital Terrestrial Television Broadcasting in the VHF/UHF Bands

DTTB Handbook

image of Digital Terrestrial Television Broadcasting in the VHF/UHF Bands

This Handbook provides guidance to engineers responsible for the implementation of digital terrestrial television broadcasting and combines material dealing with digital and analogue television systems and planning aspects of this new topic.



Propagation signal summation

Propagation prediction methods using information from a terrain data bank exist in a number of countries and give significant improvements in prediction accuracy when compared with simple methods such as Recommendation ITU-R P.3701. However, it has been found that these newer methods cannot be applied universally due to the use of empirical correction factors within each of the computer programmes which improve results for the type of terrain found in a specific country.


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