Defining your location
Most of the time, the location where wireless microphones are used can be described as a single point, defined by latitude and longitude. But some types of broadcast events take place over a wider area, requiring a larger protection zone. A golf course or race track, for example, would easily exceed 1300ft in size.
In those situations, you can enter four distinct coordinates that define a polygon up to 1.8mi x 1.8mi in size. TVBDs will not operate on your protected TV channels when they’re inside that protection zone or within 1300ft or 0.6mi of the edge of it. For events that cover an extremely large or irregularly-shaped area, you can register multiple polygons. It would be worth the effort to identify the coordinates in advance of potential venues where you might need to use large numbers of wireless microphones.
Thankfully, the system developed to protect wireless microphone operation in the coming age of TVBDs was crafted with detailed input from both broadcast users and wireless manufacturers, and it represents a thoughtful attempt to protect incumbent operations while opening the door to new creative uses of spectrum. While in some cases a few extra steps may be required to ensure interference-free operations, it is hoped that they will be easily adopted into the content production workflow and enable broadcasters to maintain the standards of production quality for which they are known.
Meet the databases
To ensure a competitive market, the FCC will appoint multiple database administrators. Two have been approved so far, and more are expected to follow. Each database contains the same information, but the appearance and features offered may differ.
Spectrum Bridge: whitespaces.spectrumbridge.com/whitespaces
—Chris Lyons is Manager, Technical & Educational Communications, with Shure.