380-520 MHz, Preselectors and Post Selector Filters
380-520 MHz, Preselectors and Post Selector Filters
380-520 MHz, Preselectors and Post Selector Filters
Bird Technologies - The RF Experts

380-520 MHz, Preselectors and Post Selector Filters

Bird Technologies has designed application-specific multi-cavity filter products for use in limiting the bandwidth in front of a multiple-receiver system (Preselector) or after a multiple-transmitter system (Post Selector). Size and complexity range from a model built from three helically-loaded 1.3-inch rectangular resonators for relatively low-selectivity receive-only applications, where 2 dB of loss can be tolerated, to four 6.625-inch cavities that can handle 400 watts with high selectivity and loss of 1 dB or less.

Check up to five products to compare
  Item No Item Name RF Power Number of Cavities Resonators Pass Bandwidth
  89-56-05A 380-420 MHz, Preselector Receive Only 6 5 MHz
  89-65-01A 406-430 MHz, Preselector 200 W 4 x 4" 0.5 to 2.0 MHz
  89-65-12A 406-430 MHz, Preselector Receive Only 3 x 2" 1.0 MHz
  89-66-02A 430-450 MHz, Preselector Receive Only 3 x 2" 1.0 MHz
  89-68-06A 450-512 MHz, Preselector Receive Only 8-Resonator 2 MHz
  89-70-01A 450-470 MHz, Preselector 200 W 4 x 4" 0.5 to 2.0 MHz
  89-70-24A 450-470 MHz, Preselector Receive Only 3 x 2" 1.0 MHz
  89-70-27A 450-470 MHz, Preselector Receive Only 8-Resonator 4 MHz
  89-70-28A 456-460 MHz /466-470 MHz, Preselector Receive Only Dual 8-Resonator 4/4 MHz