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http://mccmag.com/newsArticle.cfm?news_id=8338The FCC granted a waiver to the state of Colorado to permit licensing of a transportable 700 MHz trunked system to operate on 12 6.25-kilohertz interoperable channels.Specifically, Colorado asked for a waiver of Section 90.531(b)(1)(iii)3 of the commission’s rules that provides that no more than eight interoperability pairs (four 12.5-kilohertz channels) may be trunked at any one location and for every 10 general-use channels trunked at a station, entities may obtain a license to operate in the trunked mode on two of the interoperability channels.The FCC allows trunking on a limited number of interoperability channels. To ensure that these interoperability channels are always available when necessary for conventional interoperability operations, it allows trunking only on a secondary basis. Further, the FCC limits the number of interoperability channels that can be used in a trunked system.Colorado said that the transportable trunk system will be deployed on an emergency as-needed basis in response to a major incident or catastrophic event. Colorado also said the system will not be deployed for daily nonemergency use, and it will be used only for providing interoperable radio coverage for the protection of life and property when public-safety personnel are responding to an emergency situation.Colorado officials said that the trailer-mounted trunked radio system was approved through the Public Safety Interoperability Communication (PSIC) grant program funded by the Department of Commerce and is available to all state agencies, counties and local jurisdictions to include law enforcement, fire, emergency management and disaster response organizations.The FCC said the waiver is in the public interest because the deployable system operated in the trunked mode will provide greater spectrum efficiency and enhanced communications capability at incident scenes.
