RANGE

COM-TECH designs and manufactures a comprehensive range of output Filters for Broadcast TV and Radio Transmitters. COM-TECH Filters are available with different cavity sizes, for low to high power applications, and with different number of poles, to match all masks and standards requirements:

  • TV: DVB-T, ATSC, ISDB-T
  • Radio: DAB, FM

More on Digital Mask Requirements

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
  • Interchangeable Connector System

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 on FC, TS, TC, TF Series Filters
  • Forced Air Cooling. Available on TC, TF Series Filters
  • Liquid Cooling. Available on 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

CODING

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

  • Coding (Filters)