Developments in the 700 and 800 MHz Bands
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C h.60
15
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764 MHz
770 MHz
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776 MHz
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782 MHz
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788 MHz
794 MHz
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800 MHz
1.5 MHz PMRS
758 MHz
1.5 MHz PMRS
752 MHz
1.5 MHz PMRS
746 MHz
1.5 MHz PMRS
700 MHz Band Plan
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806 MHz
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•24 MHz for Public Safety in 764-776 MHz & 794-806 MHz bands •It will be available as soon as existing TV stations vacate the spectrum, no later than December 31, 2006. •4 blocks of 6 MHz each (6.25 kHz and 50 kHz segments): •2.6 MHz for Interoperability (P25 12.5 kHz Digital) •12.5 MHz for General Use •2.4 MHz for State Licenses •0.3 MHz for Low Power •0.2 MHz for secondary trunking •6.0 MHz for Reserve
•All 700 MHz transmitters must use DIGITAL modulation www.danelec.com
800 MHz Reconfiguration •The FCC mandated a reconfiguration of the 800 MHz band! •Why reconfigure the band? • To prevent interference to Public Safety radio systems caused by Nextel and other cellular operators. •Who will have to move frequencies? •“General Category” channels (sometimes referred to as channels 1-120) will be swapping channels with Nextel channels in the 809-814/854-859 MHz range. •NPSPAC licensees at 821-824/866-869 MHz will move to 806-809/851-854 MHz as a block. •814-816/859-861 will have the option to move to lower channels.
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800 MHz Band Plan •Pre Reconfiguration Band Plan
•Post Reconfiguration Band Plan
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800 MHz Reconfiguration •How will this be administered? •The FCC appointed a Transition Administrator (TA) who will: •oversee and coordinate the administrative and financial aspects for the process. •provide accountability. •ensure that reconfiguration is achieved with minimal disruption to licensees, particularly public safety entities. •authorize disbursement of funds for band reconfiguration based on requests for payment by affected parties. •resolve relocation disputes.
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Public Safety Benefits •Band realignment will result in the availability of an average of 4.5 MHz of additional 800 MHz-band spectrum. •Additional spectrum is sufficient to provide for 90 additional two-way channels for public safety and critical infrastructure. •Relocating Public Safety to the lower portion of the 800 MHz band affords Public Safety the potential to realize interoperability with adjacent 700 MHz public safety operations.
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800 MHz Reconfiguration •Who is going to pay for all this? •Nextel (now Sprint Nextel). •In exchange for two 5 MHz blocks at 1.9 GHz. •The reconfiguration will occur in Waves •Wave 1 - June 27, 2005 •Wave 2 - October 3, 2005 •Wave 3 - January 3, 2006 •Wave 4 - April 3, 2006 •For more information: •www.800ta.org Transition Administrator website •www.800MHz.gov FCC 800 MHz website
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Prioritization Waves
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Future Technologies
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Software Defined Radio •A software radio is a radio whose channel modulation waveforms are defined in software. •One program - implement FM radio •Another program - implement TDMA radio •Another program – CDMA •A big, complicated program—FM, CMDA, TDMA, etc… •(Basically a Radio Computer with an Application Program) •Open architecture (hopefully) •Military (DOD) implementation (mostly) •Discussion in industry (much interest)
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Cognitive Radio •Thinking Radio •As radios embed increasingly complex and realistic models of their environments, users, and networks, they begin to approach what an outside observer might call rational, or common-sense behavior. •Each user has not just a small number of possible options, but can construct a new set of radio parameters as a function of output power, direction of the RF beam, channel coding (AM, FM, PSK, MSK, QAM...), framing, and everything up and down the ISO protocol stack, in principle. •Research focuses on the definition of a Radio Knowledge Representation Language (RKRL) to define the parameters. •Prototype systems are being considered for military systems now. •10 Years Plus for commercial applications. www.danelec.com
What can we do for you?
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Summary • Daniels is leading the way in offering “new technology” radio communications equipment for use around the world. • Meeting the demands of limited spectrum issues. • Daniels takes an active roll in the future of new digital P25 radio systems standards in North America. • Continuous development of new products, services and features for legacy, as well as new radio systems. • Custom design and manufacture for specific customer needs and requirements.
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Daniels Contacts Daniels Electronics Ltd. 43 Erie Street, Victoria, BC Canada Canada V8V 1P8 www.danelec.com sales@danelec.com
Return shipments from the U.S.: Daniels Electronics Ltd. c/o The Victoria Clipper 2701 Alaskan Way, Pier 69 Seattle, WA 98121
Toll Free Canada and USA: Phone: 1-800-664-4066 Fax: 1-877-750-0004
International: Phone: 1-250-382-8268 Fax: 1-250-382-6139
Contacts: Gary Ranson – U.S. Account Manager Dave Wegelin - Sales Representative (Canada) Ben Pearce - Technical Sales Douglas Bigrigg – Director of Sales Don Brown - Service Department Ken Parks – Technical Services Manager Rob Thornton - System Integration Pete Lunness – Training and Special Projects
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