0-174 MHz, Preselectors and Post Selector Filters
TX RX 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.
|Item No||Item Name||RF Power||Number of Cavities Resonators||Pass Bandwidth
|89-36-03A||132-150 MHz, Preselector||125 W||4 x 4"||0.5 to 2.0 MHz|
|89-37-01K||144-174 MHz, Preselector||(Watts) RX-Only||3 x LC||4 to 10 MHz|
|89-37-06A||144-174 MHz, Preselector||125 W||4 x 4"||0.5 to 2.0 MHz|
|89-37-06C||144-174 MHz, Preselector||125 W||4 x 4"||0.5 to 2.0 MHz|
|89-37-13A||144-174 MHz, Preselector||400 W||4 x 6.625"||0.5 to 2.0 MHz|