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Transcript of 9/14/2011 Page 1 APCO NENA Annual Training Conference 2011 APCO NENA Annual Training Conference...
9/14/2011 Page 1APCO NENA Annual Training Conference 2011
APCO NENA Annual Training Conference
2011
9/14/2011 Page 2APCO NENA Annual Training Conference 2011
Agenda
• Narrowbanding Regulatory Overview
• Practical Impact to Dispatch
• Transition Planning
• Future – Ultranarrowband
• Icom Solutions
9/14/2011 Page 3APCO NENA Annual Training Conference 2011
History and Background• More efficient use of Part 90 spectrum
– VHF (150 – 174 MHz)– UHF (421-512 MHz)
• Licensees– Reduce operations from 25 kHz channels to 12.5 kHz or less– January 1, 2013– FCC recommends migration to 6.25 kHz – No date licensees must operate 6.25 kHz
• MFG’s – Prohibited from new 25 kHz radios now– Must include 6.25 kHz after 1/1/2013
9/14/2011 Page 4APCO NENA Annual Training Conference 2011
NPSTC Petition &FCC Order June 30, 2010
• Extended to 1/1/2013 the manufacture/import of 25 kHz equipment
• But…no new applications for new 25 kHz
equipment
• Extended to 1/1/2013 6.25 kHz in all new radios
• No new 25 kHz system licenses
9/14/2011 Page 5APCO NENA Annual Training Conference 2011
Not Included• Part 22 Frequencies
• Paging-Only Frequencies Are Excluded: – VHF Public Safety – 152.0075 and 157.4500 MHz; – VHF and UHF Business/Industrial Paging Only Frequencies;
• 800/900 MHz Public Safety/Business/Industrial Pool Channels;
• 700 MHz Public Safety channels (handled in another proceeding);
• Important Notes: – 163.250 MHz MUST be narrowbanded – See Detroit Medical Center, DA 07-1075,
released March 7, 2006; Report and Order, ET Docket No. 04-243, released March 11, 2005.
– Paging systems operating on voice channels must narrowband!
• Marine Operations • Amateur Radio Service
9/14/2011 Page 6APCO NENA Annual Training Conference 2011
12.5 kHz Equivalent Efficiency• Voice Operations
– One Voice Channel Per 12.5 kHz of Bandwidth
– Two Voice Channels Per 25 kHz of Bandwidth
• Data Operations – 4800 Bits Per Second Per 6.25 kHz of
Bandwidth – 9600 BPS Per 12.5 kHz of Bandwidth – 19,200 BPS Per 25 kHz of Bandwidth
9/14/2011 Page 7APCO NENA Annual Training Conference 2011
6.25 kHz Equivalent Efficiency• Voice Operations
– One Voice Channel Per 6.25 kHz of Bandwidth
– Two Voice Channels Per 12.5 kHz of Bandwidth
– Four Voice Channels Per 25 kHz of Bandwidth
• Data Operations – 4800 Bits Per Second Per 6.25 kHz of Bandwidth
– 9600 BPS Per 12.5 kHz of Bandwidth
– 19,200 BPS Per 25 kHz of Bandwidth
9/14/2011 Page 8APCO NENA Annual Training Conference 2011
Q – If I don’t narrowband my system, can I operate on a secondary basis after 1/1/2013
A – No. The FCC has stated that failure to narrowband “… may subject licensees to enforcement action, including admonishments, monetary forfeitures, and/or license revocation, as appropriate.”
9/14/2011 Page 9APCO NENA Annual Training Conference 2011
Q – I’m about to narrowband my system, and now I need to fix my FCC license. What should I do?
• Currently 25 kHz– File an FCC application for the proper
narrowband emission designator– Provide a certification to the FCC of
narrowband operation prior to 1/1/2013
• Currently 12.5 kHz– Update your license for the correct emission
designator (if not done already)
9/14/2011 Page 10APCO NENA Annual Training Conference 2011
Q – Do applications which only add, amend or delete an emission designator have to go to the Frequency
Advisory Committee (FAC)?
• Narrowband a wideband analog emission designator…No– Emission Designator greater than 11K, need
to change your emission designator
• Changing your emission type (i.e. going from analog to digital)…Yes
9/14/2011 Page 11APCO NENA Annual Training Conference 2011
Q – Must I buy new equipment?
• Not necessarily
• Equipment purchased after 1998 is likely dual mode
• Able to operate both 25 kHz and 12.5 kHz
• Enable the 12.5 kHz mode
• Disable the 25 kHz mode in each radio
9/14/2011 Page 12APCO NENA Annual Training Conference 2011
Q – Must I obtain digital equipment to meet the
narrowbanding mandate?
• No
• Analog equipment is acceptable
9/14/2011 Page 13APCO NENA Annual Training Conference 2011
Q – I am a public safety licensee. Must I put in P25 equipment as part of my narrowband project?
• No FCC requirement to utilize P25 equipment for your narrowband project
• P25 is an interoperability decision, not an FCC mandate
• Note: some grants require P25 capability
9/14/2011 Page 14APCO NENA Annual Training Conference 2011
Q – When I reduce my bandwidth from 25 kHz to 12.5 kHz, will I automatically double my channels?
• No
• Narrowbanding from 25 kHz to 12.5 kHz enables full power, non-interfering use of adjacent 12.5 kHz channels
• But…you are not automatically licensed for those adjacent channels
9/14/2011 Page 15APCO NENA Annual Training Conference 2011
Q – Do I need to change my channel centers when I narrowband?
• No
• You maintain your existing channel centers
• FCC approval of the LMCC request to split a 12.5 kHz channel into 2 ea. 6.25 kHz channels is imminent
9/14/2011 Page 16APCO NENA Annual Training Conference 2011
Q- Will I lose coverage area when I narrowband?
• It depends…• May be a 3 dB loss simply going from 25
kHz to 12.5 kHz analog• If…no consideration of static or faded
sensitivity• If… no consideration of the Receiver’s IF
bandwidth• Consult with your manufacturer and/or
your consulting engineer
9/14/2011 Page 17APCO NENA Annual Training Conference 2011
Q – I am interested in moving directly to 6.25 kHz equipment, but I’d like to also go P25. Is such
equipment available?
• P25 Phase 2
• 12.5 kHz TDMA equipment
• Manufacturers are now designing radios
9/14/2011 Page 18APCO NENA Annual Training Conference 2011
Q – My repeaters are not dual mode. There are third party “kits” that I’ve heard about which could alter the repeaters to operate at 12.5 kHz. Is such an alteration
permissible?
• “… using these kits to modify the radio entails a hardware modification..”
• “…requires a new equipment certification and a new FCC ID (See 2.1043(a).”
• Reducing deviation and frequency stability is insufficient
• Must be narrowband type certified
9/14/2011 Page 19APCO NENA Annual Training Conference 2011
Q – I am going from wideband (25 kHz) to narrowband data (12.5 kHz). Will I still need to meet the FCC's data
equivalency rule?
• Yes
• Even operating at 12.5 kHz
• Need a data speed of at least 9600 bps per each 12.5 kHz of occupied spectrum
9/14/2011 Page 20APCO NENA Annual Training Conference 2011
Q- What can happen if we don't move to narrowband operation?
• License will be in violation of FCC Rules
• Subject to FCC enforcement action– Monetary fine– Admonishment – Loss of license
• FCC Public Notice 7/13/2011– Must request a waiver for extension in 2011– Subject to a high level of scrutiny
9/14/2011 Page 21APCO NENA Annual Training Conference 2011
Practical Impact to Dispatch
9/14/2011 Page 22APCO NENA Annual Training Conference 2011
• Budget – One more budget cycle
• Grant applicationshttp://www.safecompro-gram.gov/SAFECOM/library/grant/1638_fy2011.htm
• Public Safety Interoperable Communications (PSIC)
• Interoperable Emergency Communications Grant Program (IECGP)
9/14/2011 Page 23APCO NENA Annual Training Conference 2011
Audio Quality
• Transition• Wideband talking to Narrowband (Audio Samples)• Narrowband talking to Wideband (Audio Samples)
• Long Term• Narrowband Audio Quality vs. P25 (Audio
Samples)• Coverage Issues (Audio Samples)
9/14/2011 Page 24APCO NENA Annual Training Conference 2011
Transition Planning
9/14/2011 Page 25APCO NENA Annual Training Conference 2011
• Impacts all radios in fleet• Mobiles• Portables• Repeaters/Base Stations
• Not all radios/repeaters can be narrowbanded• Inventory
– Identify Wideband only equipment– List of radio types that will need to be reprogrammed
• Radio Sites may not be accessible year round
• Limited Resources for Reprogramming• Supply of Radio Technicians is limited
– Supplement in-house resources with dealers– Don't wait until the last minute!
• Plan reprogramming to minimize wideband/narrowband mismatches
9/14/2011 Page 26APCO NENA Annual Training Conference 2011
The Future
9/14/2011 Page 27APCO NENA Annual Training Conference 2011
• No FCC Mandate – Yet
• 6.25kHz willl require digital
9/14/2011 Page 28APCO NENA Annual Training Conference 2011
9/14/2011 Page 29APCO NENA Annual Training Conference 2011