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GTI is the exclusive Canadian distributor of SIRA antenna systems. Please follow the link to the SIRA website for a complete listing of their FM & TV multi-channel combiners or contact us for a catalogue.


GTI can install, test, and tune all brands of TV & FM combiners and filters. We have a full complement of RF test equipment including HP Analyzers, as well as experienced in-house staff to commission new combiner and filter systems or troubleshoot existing units regardless of power level.



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