Like television, use of digital technology for radio is advancing, allowing digital audio transmission. Digital radio specifications differ from country to country. For example, ISDB–Tsb is used in Japan, HD Radio in the United States, and DAB in Europe. Interest in digital radio is particularly high in Europe where the use of multiple standards to enhance services and legislation on the installation of digital radio receivers is progressing. The TDGW9 Series tuner is claimed to be the industry's smallest at 45.0x30.0x9.0mm, supporting three broadcasting standards—DAB, DAB+, and DMB–A. The product is also an “All-in-one” type module, incorporating firmware to match individual customer requirements. This helps equipment manufacturers to shorten the time it takes to develop software. The unit operate from a 3.3V supply voltage, it receives in the 163 to 1240MHz BAND III and in the 1452 to 1492MHz L–BAND.
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