Bird Technologies - The RF Experts

RF Preselectors and Post Selectors (Filters)

Bird has been designing RF products for over 70 years. Our goal is to provide the most reliable and trustworthy products in the RF industry, including RF Preselectors and Post Selectors.

RF Preselectors and Post Selectors Filters

RF Preselectors are primarily used to limit the bandwidth in front of a multiple-receiver system and Post Selectors are used to limit the bandwidth after a multiple-transmitter system. The size and complexity of the RF Preselectors or Post Selectors 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.

Bird Technologies, TX RX Systems brand, offers a wide variety of standard and custom preselector and post selector filters to meet the requirements of the communication systems that have been and are being designed today.

0-174 MHz

VHF Preselectors and Post Selector Filters

380-520 MHz

UHF Preselectors and Post Selector Filters

746-869 MHz

700/800 MHz, Preselectors and Post Selector Filters