Wireless Mic Changes Supported by Other Players
Shure said it supports a Sennheiser petition seeking an NPRM on innovation and development of new wireless microphone technologies such as wireless multi-channel audio systems (WMAS) technology. “As a threshold matter, the Commission should solicit studies of the compatibility of…
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proposed WMAS technology with other systems such as DTV (in the 470-608 MHz band), mobile phones (in the guard bands), and narrowband analog and digital wireless microphones in all bands,” Shure said. “Such studies should confirm or inform the development of appropriate technical parameters that should be adopted to support harmonious coexistence of WMAS technology with existing services.” Technology company Alteros, an Audio-Technica company, said more is possible with new technology. “In the past, it has been suggested that efficient use of microphone spectrum is a minimum of 18 channels in a 6 MHz band,” Alteros commented. “In actual use, many professional wireless coordinators are managing to operate 18-20 channels of high quality wireless microphones in a single 6 MHz TV channel. Alteros believes that the effort of making a rule change should carry a valuable return. With 18 channels being the quantity that was expected as efficient with the currently-existing technology, we request that any new rule change require a minimum of 24 channels of high-quality simultaneous operation of wireless microphones in a given channel.” The filings were posted Friday in docket RM-11821.