Presentation on theme: "Digital Low Power TV and TV Translator Rules and Policies AFCCE Luncheon January 20, 2006 (202) 418-2607"— Presentation transcript:
Digital Low Power TV and TV Translator Rules and Policies AFCCE Luncheon January 20, 2006 (202) (202)
Digital LPTV Is Here! Report and Order (MB Docket No. 03–185) Adopted: September 9, 2004
Topics LPTV/translator digital transition Means of digital conversion Spectrum Interference protection Other technical criteria Permissible service
Goals –Hasten transition to digital service –Minimize disruption of existing service Analog TVDigital TV 40% 20% 60% 80% 0% Where are we?
If and when must Class A, LPTV, and TV translators convert to digital and cease analog transmissions?
Full-Power DTV Transition Ends Or later when 85% of households in a market can receive DTV signals December2006
Findings Class A, LPTV and TV translator stations must ultimately convert to digital FCC has discretion to set separate analog transmission end-date for these stations Less disruptive to set date some fixed time after the deadline for full-service stations Will consider establishing a transition deadline in the FCCs 3 rd DTV periodic review proceeding, unless preempted by Congressional action
AUCTON 81 Auction of non-daisy chain groups started September 14 th and ended September 26 th See DA , released September 30, Groups, 305 Applications. 90 Winners, 24 Groups did not submit a bid.
Auction 81 Continued Total revenue $997,100 Maximum bid $253,000 For Laredo, Texas, Minimum bid $1000 for different communities. Daisy chain MX groups auction, no date have been set. Close to 800 applications, 80 groups.
FREEZE ORDER FREEZE ORDER Public Notice Released August 3, 2004 Freeze was imposed in order to develop a channel election and repacking process to assign DTV channel in the core TV spectrum for eligible TV stations. Freeze does not apply to LPTV and TV translator stations.
CONTINUE Modification applications that does not change the coverage can be filed. Class A displacement applications and applications for coverage changes can not be filed STA will be issued if disruption of service is imminent.
Means for LPTV/translator digital conversion
Option 1: Flashcut existing analog channel to digital operation
DIGITAL FLASH- CUT APPLICATION PROCESSING NEW FORMS 346 AND 301-CA, VERSION FEBRUARY 2005 TO BE USED EXISTING LICENSEES OR PERMITTES WITH A VALID CONSTRUCTION PERMIT CAN FILE ON-CHANNEL DIGITAL CONVERSION AS MINOR CHANGES TO THEIR EXISTING ANALOG FACILITIES.
FLASH-CUT CONTINUED A. NO CHANNEL CHANGE. A. NO CHANNEL CHANGE. B. THE NEW PROTECTED CONTOUR OF PROPOSED DIGITAL FACILITIES SHOULD OVERLAP THE ANALOG FACILITIES OF LPTV AND TV TRANSLATOR. B. THE NEW PROTECTED CONTOUR OF PROPOSED DIGITAL FACILITIES SHOULD OVERLAP THE ANALOG FACILITIES OF LPTV AND TV TRANSLATOR.
Flashcut: File minor change application Digitally converted station protected contour Analog station protected contour Must be continuity of analog and digital service areas
FLASH CUT CONTINUED C. BECAUSE OF THE FREEZE, THE NEW PROTECTED CONTOUR OF A CLASS A DIGITAL FLASH CUT PROPOSAL SHOULD BE WITHIN THE EXISTING PROTECTED CONTOUR OF THE CLASS A STATION.
FLASH CUT (CONTINUED) D. FIRST COME-FIRST SERVED BASIS. D. FIRST COME-FIRST SERVED BASIS. THE APPLICATION WILL BE CUT OFF THE APPLICATION WILL BE CUT OFF THE DAY ITS FILED. THE DAY ITS FILED. E. THREE-YEAR CONSTRUCTION PERIOD WILL BE GIVEN TO FLASH- CUT APPLICATIONS IF THE LICENSED FACILITY IS FLASH CUT. E. THREE-YEAR CONSTRUCTION PERIOD WILL BE GIVEN TO FLASH- CUT APPLICATIONS IF THE LICENSED FACILITY IS FLASH CUT.
CONTINUED F. IF THE CONSTRUCTION PERMIT IS FLASH CUT, THEN THE NEW DIGITAL CONSTRUCTION PERMIT WILL RECEIVE THE REMAINING OF THE THREE YEARS PERIOD.
FLASH CUT G.IF LICENSED FACILITY HAVE A VALID CONSTRUCTION PERMIT, THE CONSTRUCTION PERMIT CAN BE FLASH CUT, HOWEVER ONLY ONE LICENSED FACILITIES AT ANY TIME. CAN NOT USE THE NEW DIGITAL CP AS COMPANION CHANNEL. FILING FEES: –NO FILING FEES IF LPTV OR TV Translator.
FLASH CUT –FOR CLASS A STATIONS THE FEE IS THE SAME AS MINOR CHANGE IN LICENSED FACILITIES. ANY STATION THAT HAS A LICENSE, CONSTRUCTION PERMIT, OR PENDING APPLICATION FOR ON- CHANNEL CONVERSION WIL NOT BE ELIGIBLE TO SUBMIT AN APPLICATION FOR COMPANION DIGITAL CHANNEL
FLASH CUT CONTINUED NEW SERVICE DESIGNATION: –DIGITAL LPTV AND TV TRANSLATORS LD –DIGITAL CLASS A STATIONS DC –RECEIVED 23 APPLICATIONS. –13 HAVE BEEN GRANTED
FLASH CUT CONTINUED CALL SIGN DESIGNATIONS: –IF THE EXISTING CALL SIGN IS A COMBINATION OF LETTERS AND NUMBERS, FOR EXAMPLE K34DX THEN THE DIGITAL AUTHORIZATION WILL BE ASSIGNED K34DX-D.
FLASH CUT CONTINUED –IF STATION HAS A FOUR LETTER CALL SIGN FOR EXAMPLE: KABC-LP OR KABC- CA. THEN FOR LPTV AND TV TRANSLATOR STATIONS THE NEW CALL SIGN OF KABC-LD AND FOR CLASS A STATIONS THE NEW CALL SIGN OF KABC- DC CAN BE REQUESTED VIA THE CALL SIGN DATA BASE.
CDBS UPDATE NON FORM FILINGS:
CDBS CONTINUED FUTURE ENHANCEMENTS; FRN MANAGER,: https://svartifoss2.fcc.gov/cdbs /frnmanager/
Option 2: Seek digital companion channel for transitional analog & digital station operations
Service of existing analog station LPTV Class A Regulatory status of digital station LPTV Secondary Class A Primary Application form CA LPTV and Class A On-channel Digital Conversion Comparison
Analog DigitalDigital Pro: Offer digital service without losing audience receiving analog service Cons: (1) Budget to run both analog and digital station and (2) initial digital audience may be very small
Nationwide Digital Companion Channel Filing Window Digital companion channel to be paired with a stations analog channel in same community (but without requirement for program simulcast) –Cannot apply for a companion channel associated with a station that has an authorization or pending application to flash cut to digital Only for permittees and licensees of LPTV, TV translator and Class A stations
Process for Digital Companion Channel Window Public Notice will announce dates of the window and freeze on filing of minor change applications, including digital flash cut applications Window opens – electronically file Form 175, declaring locations and channels of interest –No filing fee –Anticipate Form 175 will include the application Tech Box
(Continued) Freeze lifted on filing of minor change applications Application singletons identified and call for filing of long form applications Period for engineering solutions & settlements to resolve mutually exclusive applications Auction procedures for mutually exclusive applications At a time to be determined later, must return one of the paired channels
Subsequent First-Come-First Serve Application Filing Procedure Will be announced by public notice Not limited to incumbents Applications must protect earlier-filed applications Conflicting applications filed on the same day subject to competitive bidding process
What are the priorities with respect to displacement relief applications? Analog and digital displacement relief applications have priority over applications for new or modified digital facilities, including digital conversion applications May file for a replacement channel and on- channel digital conversion in the same application
What are the priorities with respect to displacement relief applications? Digital displacement applications have priority over analog displacement applications When mutually exclusive, the lower priority application will be dismissed
Service of existing analog station LPTV Class A Service & regulatory status of digital companion station Part 74 Secondary Application form CA LPTV and Class A Licensee Digital Channel Comparison
Use of Channels by Digital LPTV and Translator Stations … … 69
Channels Available for displacement relief and digital conversion of existing analog stations Channels also available for digital companion channels if no suitable in-core channel is available By law, channels must be vacated by end of the full-power DTV transition
Notification Requirements for Applicants for Digital Operations on Channels Must notify in writing within 30 days of filing FCC application Form 346 potentially affected co- channel and adjacent channel commercial wireless licensees and regional and state frequency administrators of adjacent channel public safety spectrum Notification/coordination zone about digital station: 75 miles - co-channel 75 miles - co-channel 50 miles - adjacent channel 50 miles - adjacent channel
LOWER 700 MHz Bandplan (Channels 52-59) Commercial wireless band manager AABBCCDE TV Channel 60
We have an answer ! Click on for contact information Address Phone, fax & Contact person Attorney contact information Union Telephone Company
Qualcomm is the sole licensee of the 700 MHz spectrum comprising TV Channel 55
UPPER 700 MHz Bandplan (Channels 60-69) TV Channel Public Safety Wireless Band Manager
Channels Must secure coordinated use agreement with public safety frequency administrators before filing flash-cut application on channels 63, 64, 68 or 69 Regional Planning Committee(s) Regional Planning Committee(s) State Interoperability Executive Committee(s) State Interoperability Executive Committee(s)
Put cursor inside Colorado and click for information on public safety Region 7 Public Safety Channels 63,64, 68 & 69
Denver Channel mile radius Regional Coordinator and State of Colorado contact: Region MHz Planning Committee Radio Systems Manager, Arapahoe County Sheriffs Office /700MHz/regchair.html 700MHz/interop-contacts.html
Operations on Channels Secondary to commercial wireless or public safety operations Must cease use of channels per public safety coordinated use agreement or, if later, the end of the full-service DTV transition Existing or future wireless licensee may serve digital translator or LPTV licensee a notice of potential conflict within 120 days of commencing new or modified operation
Channels Digital station must cease operating within 120 days of receiving notice unless –start of wireless service is delayed –agreement is reached with wireless licensee or –FCC request for stay is granted Station licensee may seek replacement channel
Digital Protected Signal Contours and Current ERP Limits Channels Protected Contour Effective Radiated Power dBu 300 watts dBu 300 watts dBu 15,000 watts
Signal Coverage UHF station: 300 feet above average terrain; 15,000 watts X26 mi 51 dBuF(50,90) =
Signal Coverage UHF digital translator: 2000 above average terrain X 26 mi 51 dBu F(50,90) = 250 watts
Analog Translator & LPTV Interference Methodology: Contour Protection U Proposed Station 10 miles 2 miles Antenna heights above average terrain (2-10 miles) D Protected Station Protected Contour (D) 10 miles 2 miles
Interference Protection Considerations Permit interference avoidance techniques ( e.g., co-located operations on adjacent channels) Ensure adequate protection Account for terrain, interference masking and receiving antenna characteristics Permit interference acceptance agreements among stations in the LPTV and Class A services
Adopted D/U Interference Thresholds Except for adjacent channel interference from digital stations, apply § (c) of DTV rules Examples for co-channel protection –Digital protecting digital: + 15 dB –Digital protecting analog: + 34 dB
D/U Ratios for Interference From First Adjacent Channel Stations Emission Mask DTV-into-AnalogDTV-into-DTV Simple 10 dB 10 dB - 7 dB - 7 dB Stringent 0 dB 0 dB -12 dB -12 dB
D/U Signal Strength Ratios * + + Protected Signal Strength: D (dBu) Potentially Interfering Signal Strength: U (dBu) D – U > Interference Threshold (dB) ?
Service population area Protected Service Contour Adopted DTV Approach for Interference Analysis of Digital Translator/LPTV/Class A Stations (OET Bulletin 69 Methods & Longley-Rice Propagation Model)
Permitted Service Population Reductions Due to Digital Translator & LPTV Stations Protected Station Population Reduction Allowance Full-service DTV 0.5 % Full-service TV 0.5 % Analog or digital Class A 0.5 % Analog or digital TV translator or LPTV 2.0 %
Need to Tailor Assumed Vertical Antenna Pattern in Table 8. of OET 69 Model for Typical Antennas Used by LPTV Stations Assumed vertical relative field = for Φ >= 6 degrees ERP MAX = 10 kW ERP (6 º = 121 watts) 6 º 1000 feet 10 miles 5 miles 74 dBu contour Φ= 10 kW directed down at 6 º puts 74 dBu at 16 miles
Assumed Vertical Antenna Pattern As temporary measure, will double values in Table 8 of OET Bulletin 69 up to a value of 1.00 FCC open to a revised procedure if more realistic assumed vertical field strength values are proposed
Transmission Issues Require FCC Certification of New Digital Translator and LPTV Transmitters
Key Transmitter Performance Criteria for Certification Produces output signal that can be satisfactorily viewed on receivers designed for FCC DTV transmission standard Does not exceed the maximum rated digital average power output under any condition Out-of-channel emissions at output terminals (including all output filtering) meet the attenuation requirements of the simple mask Local oscillator frequency of RF upconverter must be maintained within 10 kHz
Emission Masks Total Average Channel Power 0.5 MHz-0.5 MHz6 MHz- 6 MHz 6 MHz Channel dB down 76 dB Stringent Simple 71 dB
Emission Resolution Bandwidth Standard bandwidth of 500 kHz Results from any alternate bandwidth should be converted to equivalent results from 500 kHz bandwidth: A (dB) = A alternative + 10 log (BW alternative /500) A (dB) = A alternative + 10 log (BW alternative /500)
GPS Protection From 2 nd and 3 rd Harmonic Emissions GPS frequency bands: MHz, MHz and MHz Affects only TV channels 22-24, 32-36, 38 and For FCC certification, transmitter must employ filtering that attenuates harmonic emissions in the GPS bands by at least 85 dB Field measurements of the second or third harmonic output of transmitters so equipped are not required
Modification of Transmission Systems Permit modification of existing analog equipment for digital transmissions (e.g., use analog final RF amplifiers) Station licensee must notify FCC upon completion of modifications (and certify that any custom modifications comply with technical requirements) Licensee must maintain records of the nature of the modifications, test procedures and results for period of two years
Program System & Information Protocol (PSIP) Data in the DTV bit stream for channel navigation, closed captioning, electronic program guide and other functions Virtual Channel Table facilitates electronic tuning –Viewers tune to DTV stations Major Channel – the stations corresponding NTSC channel number (e.g., channel 7.0) –Minor Channel numbers identify specific DTV services or program channels (e.g., 7.1, 7.2, …) PSIP is voluntary for LPTV, required for Class A
On-channel Digital TV Translators Same transmission and interference standards and application filing procedures as digital translator & LPTV stations
What digital service is required and permitted?
Whenever operating, must transmit a free off- air video programming service of at least analog TV technical quality Intended for reception by the general public using receivers based on the FCC transmission standard (i.e., 8-VSB modulation) I want that free video programming service on my new DTV set.
Dynamic Bit Allocation Options (19.38 megabits/sec) HDTVSDTVDATASDTVAncillary & SupplementarySDTV 1SDTV 2 SDTV 3 SDTV 4SDTV5SDTV Empty Bit Space
Ancillary and Supplementary Services Pay TV Can partner with outside service providers Annual fee of 5% of gross revenues from feeable services Examples: Data sent to TV or computer, subscription video, downstream internet, paging