XMF MULTICOUPLERS

VHF, UHF, & 700/800/900 MHz Xpandable BandPass Multicoupler Filters

The XMF (Xpandable Bandpass Multicoupler Filter) system is one of the most unique transmitting/receiving multi-couplers available. Each channel consists of one, two, or three bandpass filters in combination with an exclusive notch filter design. This enables system expansion without modification to existing system channels as long as applicable selectivity standards for minimum channel spacing are met.

This new notch-filter approach provides a junction between channels, allowing channel frequencies to pass freely to or from antennas, while diverting all other channel frequencies to the pass-through antenna line terminal efficiently and effectively as well as the remaining XMF system channels. This characteristic is field-tunable over specified bands of operation without any alterations in configuration.

Channels may be interconnected with any convenient length of cable. There are no length sensitive cables in the path between channel junction cavities. There is also no frequency order of interconnection required. The only requirement is that the minimum spacing for VHF is 0.8 MHz and 2 MHz at UHF frequencies.

The XMF channels are supplied for wall or rack mounting. The individual cavities are mounted with stainless steel strap clamps, and two horizontal mounting bars. In either case, it may be located at a convenient spacing for rack or wall applications. Horizontally-spaced mounting holes are standard 19 inch EIA rack spacing on wall and rack mounts.

All COMPROD filters have two hand-movable tuning rods, a coarse and a fine filter for a 35 percent faster tuning capability. Using adjustable silver-plated coupling loops and calibration index label, it easily facilitates setting cavity insertion loss as required for each application.

The combination of heavy-gauge aluminum outer conductor, thick heliarc-welded cavity top plates, heavy silver-plating on micro finished tuning assemblies, and Invar-based temperature compensation material, results in a constant performance levels and long-term reliability. Cavity and isolator connectors are Type N female, with silver-plated brass bodies and gold-plated center contacts. Gold-plated cable connector center contacts are soldered to the cable, and the dual shield is securely crimped to the connector barrel using pneumatic fixtures and precision dies. These attributes contribute to the high quality of products to which our clients have become accustomed.

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.