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ISDB-TSB Technology

ISDB-Tsb is the terrestrial digital sound broadcasting specification. The technical specification is very similar to the ISDB-T specification, with the exception that ISDB-Tsb uses a form of narrowband transmission with one and three segments.

ISDB-Tsb ? Integrated Services Digital Broadcasting TErrestrial Sound Broadcasting ? is based on the digital ISDB-T TV standard utilized in Japan, and it therefore uses parts of this technology for digital sound broadcasting and additional data services.

ISDB-T normally uses coded orthogonal frequency division multiplexing (COFDM) with the 2K, 4K and 8K FFT modes. The HF signal has a bandwidth of 6 MHz and consists of 13 segments in ISDB-T, while ISDB-Tsb uses only three of the segments.

Owing to this segment concept, wideband and narrowband transmission can be implemented. ISDB-T is used in Japan.

ISDB-TSB Deployment Scenario

As of this document’s publication date, ISDB-Tsb is used in Japan and it represents the digitization of AM and FM in sound broadcasting.

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