SETTING AND FORGETTING
PROBLEM: Probably the most frustrating problem with wireless is that the airwaves themselves keep changing. The list of analog and digital TV channel assignments has been changing regularly since the DTV transition began years ago. Rights to the UHF TV spectrum above channel 51 is in the process of being auctioned. Some of it (like channel 55) is already being used by the new owners, while the rest may remain unused until 2009.
As if that weren't enough, the FCC is trying to figure out a way to allow a new strain of consumer products (PDAs, smartphones, or home equipment) to use the unoccupied TV channels (also known as “white spaces”) to deliver wireless Internet access.
SOLUTION: It used to be enough to know whether your city had odd-numbered or even-numbered TV channels in the VHF band. Today, however, the people who set up and use wireless microphones (as well as in-ear monitors and intercom systems) need to regularly check local spectrum conditions, even when working at venues they know well.
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