The Delta Meccanica 1255-6 600 W DMB/DAB Filter is a 6-cavity, cross-coupled Band III mask filter for DAB and T-DMB transmitters up to 600 W.
$ 2,433.08 $ 2,556.50
The Delta Meccanica 1255-6 600 W DMB/DAB Filter is a high performance 6-cavity bandpass mask filter designed for Band III DAB and T-DMB transmission systems. It uses a cross-coupled topology to achieve steep skirts and high out-of-band attenuation, allowing operators to meet stringent mask requirements while maintaining low insertion loss at the carrier frequency.
The Delta Meccanica 1255-6 is supplied as a 19″-style cavity assembly with RF connectors sized for Band III power levels, typically 7/16″ or similar high power interfaces depending on configuration. It is intended to be installed in the RF chain between the transmitter and antenna system, or as part of a small combiner arrangement, providing the necessary bandpass shaping and adjacent channel protection. In a modern multiplex plant it partners naturally with other DAB filters and DAB combiners as part of the overall RF filtering and combining system.
In day-to-day use the Delta Meccanica 1255-6 provides stable electrical characteristics over temperature, supporting reliable operation in transmitter halls where ambient conditions can vary. Once tuned to the required multiplex frequency, it delivers repeatable insertion loss and mask performance with minimal need for adjustment. For network operators and broadcasters looking for a compact, proven Band III mask filter solution, the 1255-6 offers a solid balance of performance and power handling within the wider Delta Meccanica filter and combiner range.
