130 likes | 286 Views
NARROWBANDING: OBSTACLE TO OPPORTUNITY Jay Sexton Senior Research Engineer Georgia Tech Research Institute. Information and Communication Technologies. Manufacturing Technologies. Health and Human Systems. Defense and Security. Energy and Environment.
E N D
NARROWBANDING:OBSTACLE TO OPPORTUNITYJay SextonSenior Research EngineerGeorgia Tech Research Institute Information andCommunication Technologies ManufacturingTechnologies Health andHuman Systems Defense andSecurity Energy andEnvironment
What equipment is used on every call by every public safety responder? Radio
Why We’re Here • Georgia Tech Research Institute (GTRI) • Contract-based applied R&D arm of Georgia Tech • Work with GEMA/HS on public safety planning, training, exercises, and system design/deployment • Held 21 workshops/exercises on interoperability – found a need for awareness and understanding of narrowbanding • That need extends to federal agencies as well • Affects land mobile radio systems – foundation of local public safety communications
Radio Spectrum for Public Safety The VHF and UHF bands are full!
Solution = Narrowbanding http://scientelwireless.files.wordpress.com/2010/04/narrowband-graphic.jpg
Narrowbanding Impact • Good • Increase number of available VHF and UHF frequencies • Allow for system expansion instead of replacement • Bad • Probably must replace pre-1996 equipment • ALL equipment must be reconfigured or replaced • Unfunded mandate – agencies bear the costs • Radio coverage will be reduced (up to 40%) • DEADLINE: December 31, 2012
Effects on Response • Coverage loss • May have to install more sites • Digital systems • Help coverage • Can hinder interoperability • Will become more necessary when 6.25 kHz is mandated • Standard for 12.5 kHz, but not 6.25 kHz • Interoperability of wideband and narrowband radios
Agencies Effected • Law enforcement • Fire • EMS • Boards of Education (including school buses) • Public Works / Utilities • Departments of Transportation • Others
Recommended Next Steps • Talk to budgetary authority • Inventory current equipment • Portables and mobiles • Base stations and repeaters • Radio caches • Gateway radios • Pagers • Perform coverage test
Recommended Next Steps (cont’d) • Talk with neighbors • Shared channels • Sharing a system • Change FCC license • Administrative change if narrowbanding only • Other changes (e.g. system expansion) require coordination • Program national interoperability channels (VTAC, UTAC) • Plan ahead!
Helpful Websites • FCC Narrowbanding page - Briefs, Tech Topics, FAQs • http://www.fcc.gov/narrowbanding • National Interoperability Information eXchange • http://www.niix.org • Information sharing community – state, local, agency, etc. • OEC/ICTAP Public Safety Technology Assistance Tools • http://publicsafetytools.info • Narrowband Status, Frequency Mapping, CASM
Key Takeaways • All VHF, UHF Radio Systems must narrowband by December 31, 2012 • Planning and coordination are crucial • ALL equipment must be reconfigured or replaced • Coverage loss must be addressed • NOTE: Systems must ultimately go to 6.25 kHz equivalent bandwidth (no date set)
Jay Sexton Senior Research Engineer Georgia Tech Research Institute 404-407-6653 jay.sexton@gtri.gatech.edu