May 5, 2016–PowerTrunk, Inc., complained today about an order the FCC released recently that confirmed that Emission Mask H must be used for digital transmissions in 800 megahertz NPSPAC channels, which the agency said will protect public safety systems from interference (TRDaily, April 25). In particular, the company complained in an ex parte filing in PS docket 13-209 about a footnote in the order that says the FCC “also declined to permit TETRA on the narrowband portion of the 700 MHz public safety band, noting that TETRA does not conform to the interoperability standard for the 700 MHz narrowband public safety band interoperability channels.”

The footnote came after the FCC said that “TETRA equipment is not interoperable with equipment commonly used in the NPSPAC band.”PowerTrunk noted that while TETRA-only equipment can’t interoperate with Project 25 equipment, “multimode radios that include TETRA and P25 technologies” are able to. —Paul Kirby, paul.kirby@wolterskluwer.com

Courtesy TRDaily