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Cavity Filters Pass-band and Notch

Pass-band or Notch coaxial Cavity filters for VHF and UHF

Pass-band or Notch coaxial cavity filters in quarter wave high “Q” for VHF and UHF.Externally made of Alodyne aluminum, with internal lines of silvered copper and PTFE insulators. Used both in transmission and reception, they are available in two versions: band-pass ( FDB ) or eliminate-band ( notch FDN ). UHF versions are temperature compensated, VHF versions only on request.

Gallery

Technical Data

 FDB/50   FDB/130   FDB/530-C   FDN/50   FDN/130   FDN/530-C 
FREQ. RANGE 50-60Mhz 140-180Mhz 430-560Mhz 50-60Mhz 140-180Mhz 430-560Mhz
V.S.W.R. < 1.2:1 < 1.2:1 < 1.2:1 < 1.2:1 < 1.2:1 < 1.2:1
IMPEDANCE 50 Ohm 50 Ohm 50 Ohm 50 Ohm 50 Ohm 50 Ohm
BANDWIDTH ( -3db )  200Khz 200Khz 500Khz
PASS-BAND ATTENUATION
< 0.6db < 0.6db < 0.6db < 0.5db < 0.5db < 0.5db
STOP-BAND ATTENUATION  > 20 db > 20 db > 20 db
CONNECTOR N N N N N N
POWER 150W 150W 100W 150W 150W 100W
WEIGHT 9.5 Kg 4.5 Kg 2.6 Kg 9.5 Kg 4.5 Kg 2.6 Kg
DIMENSIONS (cm) 115x12x12 70x12x12 32x12x12 115x12x12 70x12x12 32x12x12

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