Bird - The RF Experts
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 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.

380-520 MHz, Preselectors and Post Selector Filters
380-520 MHz, Preselectors and Post Selector Filters
Check up to five products to compare
Item No
Item Name
RF Power
Number of Cavities Resonators
Pass Bandwidth
380-420 MHz, Preselector
Receive Only
6
5 MHz
406-430 MHz, Preselector
200 W
4 x 4"
0.5 to 2.0 MHz
406-430 MHz, Preselector
Receive Only
3 x 2"
1.0 MHz
430-450 MHz, Preselector
Receive Only
3 x 2"
1.0 MHz
450-512 MHz, Preselector
Receive Only
8-Resonator
2 MHz
450-470 MHz, Preselector
200 W
4 x 4"
0.5 to 2.0 MHz
450-470 MHz, Preselector
Receive Only
3 x 2"
1.0 MHz
450-470 MHz, Preselector
Receive Only
8-Resonator
4 MHz
456-460 MHz /466-470 MHz, Preselector
Receive Only
Dual 8-Resonator
4/4 MHz