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C.N.Tower, Toronto, ON, Craig Media , Canada  Catalin Popescu – 2003
Project Goals <ul><li>2.5Kw-DIGITAL UHF transmitter – CH66, solid state configuration system using the Digital Mask Filter...
Description <ul><li>RF system design according with the customer specifications. </li></ul><ul><li>Issue the specification...
RF system design <ul><li>The 2.5KW _UHF –CH66, Solid State air cooled: </li></ul><ul><ul><ul><li>Using 1-5/8” line;  </li>...
RF System design (cont.) RF Flow Diagram-Patching
RF System design (cont.) AC distribution diagram
Submission of the proposal for the CH66 and CH52transmitters <ul><li>The RF diagram showing the modes of operation of the ...
Filters-Channel Combiners Data
Installation Drawings Overall view-CN Tower CH 52 AND CH 66 EXISTING 44kw, VHF Patching and Combining system
Installation Dwg. Cont. LARCAN Perspective view-CN Tower (future expansion) Future TX (S)
Installation Dwg. Cont. Side view-CN Tower, (details)
Installation Dwg. Cont. Side view and Patching close view
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CN Tower 2.5kw Digital & 10 Kw Analog Uhf 2003

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CN Tower 2.5kw Digital & 10 Kw Analog Uhf 2003

  1. 1. C.N.Tower, Toronto, ON, Craig Media , Canada Catalin Popescu – 2003
  2. 2. Project Goals <ul><li>2.5Kw-DIGITAL UHF transmitter – CH66, solid state configuration system using the Digital Mask Filter as a Channel combiner; </li></ul><ul><li>10Kw-ANALOG UHF transmitter –CH52, combined amplification using the same antenna system as for digital transmitter; </li></ul><ul><li>Line optimized (VSWR better than 1.08), good insulation between the combined paths (more than 60dB). Patching system for the Mask Filter-Channel combiners and the test loads; </li></ul><ul><li>Using a CIBF combining system design, as a Digital Mask Filter and as a Channel combiner. </li></ul><ul><li>System design is up gradable to 2 or 3 more transmitters-limitation only on the antenna system power capability; </li></ul><ul><li>Design the system for installation into a room with ceiling restrictions, existing equipment, air ducting, and new HVAC Units; </li></ul>
  3. 3. Description <ul><li>RF system design according with the customer specifications. </li></ul><ul><li>Issue the specifications of the filtering and combining system; </li></ul><ul><li>Submission and approval of the proposal. </li></ul><ul><li>Manufacturing and Installation drawings. </li></ul><ul><li>Helping the Test and Service Dept. in the final commissioning </li></ul>FOR MORE INFO... Mr. Catalin Popescu – Application Specialist Phone: 905 564-9222 Fax: 905 564-9224
  4. 4. RF system design <ul><li>The 2.5KW _UHF –CH66, Solid State air cooled: </li></ul><ul><ul><ul><li>Using 1-5/8” line; </li></ul></ul></ul><ul><ul><ul><li>Digital Mask Filter as per Canada Industry standard, used as a channel combiner for the Analog transmitter; </li></ul></ul></ul><ul><ul><ul><li>RF design for the UHF band; </li></ul></ul></ul><ul><ul><ul><li>2 digital exciters main-stand-by configuration; </li></ul></ul></ul><ul><li>The 10KW_UHF –CH52, Solid state, Teracom Diplexer, air cooled: </li></ul><ul><ul><ul><li>1-5/8” for aural and visual before combining; </li></ul></ul></ul><ul><ul><ul><li>3-1/8” for combined (aural +visual on TERACOM Diplexer); </li></ul></ul></ul><ul><ul><ul><li>2 Exciters configuration, with a Traplexer (incl. 3.58 Traps and aural cavities); </li></ul></ul></ul><ul><li>The key factors for design where: </li></ul><ul><ul><ul><li>max line avg. power, </li></ul></ul></ul><ul><ul><ul><li>VSWR derating, </li></ul></ul></ul><ul><ul><ul><li>max. peak power for the line due to the combination of the 2 and/or more transmitters into the same transmission line (4-1/16”line flanged), </li></ul></ul></ul><ul><ul><ul><li>insertion loss contribution to final power at the gas barrier and space limitations. </li></ul></ul></ul><ul><ul><ul><li>Using the same test load for both channels and ability of patching any transmitter into the test load or direct to the antenna. </li></ul></ul></ul><ul><li>Power supply electrical designed for both transmitters with reduced power operation on generator; </li></ul>
  5. 5. RF System design (cont.) RF Flow Diagram-Patching
  6. 6. RF System design (cont.) AC distribution diagram
  7. 7. Submission of the proposal for the CH66 and CH52transmitters <ul><li>The RF diagram showing the modes of operation of the system; </li></ul><ul><li>The material list count: lines, elbows, couplings, reducers, coaxial switches, probe sections; </li></ul><ul><li>Electrical Diagram design for the 208/120VAC service (breaker size, surge protection, voltage regulation), and reduced power operation on voltage generator; </li></ul><ul><li>Cooling systems design approval with the LARCAN requirements; </li></ul><ul><li>Preliminary installation drawings issued by Application Engineering Dept. </li></ul>
  8. 8. Filters-Channel Combiners Data
  9. 9. Installation Drawings Overall view-CN Tower CH 52 AND CH 66 EXISTING 44kw, VHF Patching and Combining system
  10. 10. Installation Dwg. Cont. LARCAN Perspective view-CN Tower (future expansion) Future TX (S)
  11. 11. Installation Dwg. Cont. Side view-CN Tower, (details)
  12. 12. Installation Dwg. Cont. Side view and Patching close view

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