Field Test and Evaluation of DAB , DAB + and T-DMB Audio : Outdoor and Indoor Fixed Reception Environments

Since digital radio broadcasting techniques can give highly enhanced performance and quality (e.g. CD like audio quality, single frequency network, slide show, etc), many countries pay attention to converting their analog radio broadcasting services into digital services. In Korea, to digitize radio broadcasting service, various trials have been executed since 2009 [1]-[2]. This paper deals with the field trial results of digital audio broadcasting (DAB), DAB+ and terrestrial digital multimedia broadcasting (TDMB) technologies [3]-[5]. The objective of this field trial is to measure and analyze the reception performance and service coverage in various practical reception environments. The reception environments of the field trial can be classified into two major parts; one that is outdoor reception environment, and another that is indoor reception environment. Through the test results, the performance difference can be compared with each other. And the test results can be efficiently used for many countries considering adoption of digital radio service.