For United States of America
Information on the operation of UHF wireless microphone systems and In Ear monitoring systems after the transition to Digital Television on Feb 17th 2009 - Feb 17th, 2009 is the deadline for the transition to digital television in the US.
With the transition, the UHF spectrum in the range 470-806MHz will undergo major changes.
Two issues will have affect on the UHF spectrum:
1) Digital Dividend
The frequency range 698-806MHz (TV channels 52-69) is no longer available for UHF wireless microphones and In Ear Monitoring systems . This frequency range has been auctioned off to private companies with a small portion reserved for emergency use.The unused frequencies in this range are currently available for UHF wireless microphone products, but this may change in the future
2) White spaces
With the transition to DTV the frequency range 470-698MHz (TV channels 14-51) will be cleared from analog TV broadcasting. The remaining free portions between the DTV transmitters are referred to as White spaces. Since the introduction of UHF wireless systems, the unused spaces between broadcast transmitters had been used as their operating range. This operating principle will remain unchanged after the transition to DTV, this means that wireless systems will continue to work as they do today, simply by taking the same preparatory steps you are used to.
With the transition to DTV, the white spaces came into discussion regarding their economic value. Politics and industry are going to make the white spaces frequencies available for consumer and commercial applications.
This will be new source for interference for wireless microphones and IEMs
With all these changes happening, there are fewer alternatives for the operation of professional wireless microphone systems / IEM systems in the UHF range.
beyerdynamic has been monitoring the DTV transition process. Based on the results and information we have, we will be able to supply UHF wireless microphone systems that will fit into the future needs and requirements of the US market.
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