Code: 200001648
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The DPF 2/6-150 is a high-power, 6-cavity base-station duplex filter designed for the 138–175 MHz frequency band. It is available in two models: the DPF 2/6-150 L, tunable within 138–156 MHz, and the DPF 2/6-150 H, covering 152–175 MHz, both featuring a nominal duplex separation of 4.5 MHz. This filter utilizes enlarged 40 x 40 mm, full quarter-wavelength cavities with silver-plated, temperature-compensated resonator elements, ensuring high-Q performance for narrow duplex spacing while maintaining low insertion loss. The increased cavity size enhances power-handling capability by improving insulation distances at high-voltage points and distributing power dissipation over a larger area, allowing continuous operation at 150 W. Primarily intended for single-frequency Tx and Rx operation, the filter can also support multi-channel use within a certain port bandwidth, albeit with slightly reduced performance, for which factory tuning is recommended. Constructed with an extruded aluminum housing, a passivated steel chassis, and rigid coaxial cables with Teflon-insulated connectors, the DPF 2/6-150 is coated with black vinyl for corrosion resistance.