Got Wireless Mics? Might want to check those
Friday, January 22nd, 2010At the firm where I work, we do have a set of wireless microphones that are used quite often in our main conference room for CLE sessions, and other events. The system has been there longer than I have, so I’ve never really paid much attention to it, but have made a note to go look at it with our facilities folks next week after being made aware that any wireless mics broadcasting in the 700MHz band will be illegal as of June 2010!
Certain wireless microphones have operated in frequencies that are needed for public safety. When these microphones were first designed, the frequencies they used were in between the frequencies that television stations used to broadcast television programs. With the completion of the digital television (DTV) transition on June 12, 2009, television stations no longer use the frequencies between 698 and 806 MHz (the 700 MHz Band) for broadcast. These frequencies are now being used by public safety entities (such as police, fire and emergency services) and by commercial providers of wireless services (such as wireless broadband services).
The wireless microphones that had been operating in the old TV broadcast channels can cause harmful interference to these public safety and wireless consumer services. Therefore, all users of wireless microphones (or certain low power auxiliary stations) that operate on any of the frequencies in the 700 MHz band – including both licensed users (under Part 74) and unlicensed users – now have to stop operating in this band.
I had no idea. Did you? Here’s hoping ours are 2.4GHz wireless mics!




