X-PASS

Expandable Multicoupler/Combiner Filters

The Next Generation of Filtration

The X-Pass system is among the most innovative filter designs available today. The X-Pass configuration has been used by the CREST project at Mount Douglas (BC), Hydro Quebec, NB DOT, Motorola Systems and multiple projects in Canada, the USA and internationally. Possessing the properties of a combiner, but having the expandability of a multicoupler, our X-Pass filters are one of the most versatile and re-usable filtration systems available on the market.

The X-Pass transmitter multicoupler/combiner has superior expandability over fixed-star, junction-type confi- gurations. The X-Pass system can be expanded one channel at a time or up to 21 channels with factory-tuned, easy-to-install expansion channel assemblies. Expansion can be completed easily, without modifying the existing system, as easy as adding one or many channels on top of the existing system (daisy chain).

The X-Pass system is a broadband design allowing the system to completely span entire frequency ranges by using the properties of the X-Pass’s combiner for close frequency spacing and the X-Pass’s multicoupler properties for the normally-spaced channels. The X-Pass can span the full 138-174 MHz, 406-512 MHz and 806-960 MHz frequencies with ease. With a 6.62 inch cavity, Tx-Tx in VHF can be as close to 75 kHz in frequency separation or 50 kHz using 10 inch cavities.

The X-Pass system has the advantage of being extremely flexible. With the ability to combine Bandpass, Pass-Reject, or Notch 6.625 inch & 10 inch cavity filters within the X-Pass configuration, once-difficult duplex operating requirements can be easily resolved with any customized design. This allows the X-Pass system to have unlimited combinations that can be integrated using multi-cavity configurations, while retaining the expandability of the X-Pass combiner properties for close frequency spaced channels using 6.625" and 10" cavities. Your system can now be a hybrid, part-combiner for close frequency spaced channels while encompassing the expandability of part-standard multicouplers that can be integrated with standard Bandpass, Notch, and Pass-Reject filter combinations. All X-Pass systems are fully assembled, ready for Bolt, Plug and Play installations.

The X-Pass system has one more beneficial aspect - the optional X-Pass Rack. With this ingenious rack design, certain systems can take up to 50 percent less space than normal systems in a 19-inch rack.  Even our Stak Rack cannot compete with the efficiency of the X-Pass Rack. By being able to mount all cavities horizontally, the ability to expand one channel on top of another in no particular order, and not having the physical obstacles of mounting a star-junction type configuration in a rack, the X-Pass system can save valuable installation space, that in most cases is a premium, especially for future expansion projects.

For more information on COMPROD X-Pass, Multicouplers, Duplexers, Pass-Reject, BandPass, or Notch filters, contact our Technical Support team at 1.800.603.1454 or 1.450.641.1454.