If you're shooting night exteriors in the NY area over the next few weeks, be aware your block 22 radio mics might experience intermittent interference.

The Metropolitan Television Alliance, which represents 12 of the major television stations in New York City, is planning to test the signal strength and broadcast coverage of DTV signals originating from atop One World Trade Center.

The MTVA comprises television stations WABC, WNBC, WCBS, WNJU, WNYW, WWOR, WPIX, WPXN, WFUT, WXTV, WNET and WNYE.

The installation of DTV transmitters, antennas and ancillary RF components is set to begin on 1/19/15 with a series of transmission tests to commence approximately six to eight weeks after that.

The initial DTV transmission tests from World Trade Center will take place on UHF TV Channel-32 (578-584 MHz) aka: Lectrosonics BLOCK-22 along with VHF TV Channel-12 (204-210 MHz).