NBA coaches will be exercising a little more restraint this season, though they may not know it. They're wearing Zaxcom TRX 900 wireless microphones that allow the games' audio mixers to adjust gain and change the frequency remotely. "If we find ourselves getting stepped on [by an intruding frequency], we can work the changes from the receiver," says Jim Budka who, along with Dave Grundvig and Pat Thornton, mixes Turner's NBA On TNT Thursday night doubleheaders.

The Zaxcom mics were provided by Bexel Broadcast Services and modified by Zaxcom to meet Bexel's exacting technical specs. There are two mic packages: one for East Coast games and one for West Coast games.

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