RANGE

COM-TECH designs and manufactures a comprehensive range of output Filters for Broadcast TV and Radio Transmitters.
COM-TECH Filters are available with a wide choice of cavity sizes, for low to high power applications, and with different number of poles, to match all masks and standards requirements (DVB-T, ATSC, ISDB-T, DAB, FM):
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UHF VHF B.III  VHF B.I  DAB FM
Cavity Size 20 to 220 mm 30 to 200 mm 60 to 300 mm 60 to 200 mm 80 to 220 mm
No. of Poles 5, 6, 7, 8-Pole 6, 8-Pole 6-Pole 6, 8-Pole 2, 3-Pole

COM-TECH Filters product codes are named with reference to Series, No. of Poles, Technique, Cavity Size, and Band:

  • Coding (Filters)

DESIGN TECHNIQUES

COM-TECH Filters make use of innovative and proprietary design techniques:

  • XLine: Extracted-Pole Elliptical Response. Available on CL Series Filters
  • DualCross: Double Cross Coupling. Available on FC, TC, TF Series Filters
  • SIR. Available on TS Series VHF B.III Filters
  • Hairpin. Available on HR Series VHF B.I Filters
  • EVA-Mode. Available on CL Series FM Filters and HE Series VHF B.I Filters

FEATURES

COM-TECH Filters share these main Features:

  • Full Band Tunability
  • Temperature Stabilization
  • DC Short
  • Output Monitor Probe
  • Modular Connector System
  • 10-Year Warranty

OPTIONS

COM-TECH Filters can be provided with specific Options to efficiently reduce their over-temperature, and to consequently increase their maximum operating power. The resulting downsizing possibility allows significant cost and space savings:

  • Heat Sinks. Available for FC, TS, TC, TF Series Filters
  • Forced Air Cooling. Available for TC, TF Series Filters
  • Liquid Cooling. Available for TC, TF Series Filters

COM-TECH Filters have been engineered to be conveniently fit into Racks. COM-TECH can provide standard and customized solutions to integrate Filters, Combiners, Directional Couplers, Lowpass Filters, and other components into Racks:

  • Rack Shelf. Available for CL, FC Series Filters