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):
.
| 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
