On February 3rd the Public Safety Communication Council (PSCC) sent a letter to the FCC discussing interference issues with Time division multiple access (TDMA) systems. Particularly in the VHF bands(150 MHZ - 173 MHZ). PSCC contends that more data needs to be gathered about the interference potential posed to analog systems. In the interim PSCC coordinators say that,"no applications utilizing TDMA emissions in the VHF band will be deemed coordinated and recommended for licensing having an ERP greater than 10 watts for any fixed location. This limitation includes sites classified as FX1, including those fitting the 6.1 meter category.."
This appears to complicate the FCC mandated conversion to new narrowband by years end. In other words, a public safety entity, such as a police department switching over to MotoTRBO would have to comply with this 10 watt limit for VHF. Even if its an existing license. PSCC intends to revisit this issue by May of 2012.
Stay tuned to this blog.
Dave
david@fccforms.com
http://www.fccforms.com
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