57-45-04 Combline Filter/Preselector 1

57-45-04 Combline Filter/Preselector

Frequency Range: 450-470 MHz
Typical Insertion Loss: 3.0 dB
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Designed for minimizing interference from adjacent channels and outside systems

  • Temperature-compensated to ensure frequency stability
  • High attenuation to minimize desense and interference from adjacent systems
  • Silver-plated loops and tuning rods
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Specifications
Description
Ordering Information
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  • Frequency Range, MHz

    450-470

    Type

    Combline

    Insertion Loss Bandwidth, dB

    3

    Pass Bandwidth, MHz

    4

    Return Loss, dB (VSWR)

    20 (1.22)

    Typical Selectivity, dB @ MHz

    38 @ 5

    Temperature Range, ºC

    -30 to +60

    Input Power, Watts

    Rx only

    Connectors, Antenna/Output

    N-F/N-F

    Finish

    Black

    Dimensions H x W x D, in (mm)

    5.25 x 19 x 4.5 (133 x 686 x 114)

  • The combline filters are designed for minimizing interference from adjacent channels and outside systems. They are available in a wide range of bandwiths and frequency splits. Used in front of a wideband receiver multicoupler, the preselectors narrow the passband to the desired bandwidth. Each filter is temperature-compensated for operation between -40ºC to +60ºC. Each filter has silver-plated loops and tuning rods.

    Our preselectors are available in a wide range of frequency splits, bandwidth and cavity sizes.

    • Temperature  compensation: ensures frequency stability
    • High attenuation: minimizes desense and interference from adjacent systems

    Other preselectors are also available.  They include comblines and our full line of cavity-based preselectors. Sizes range from the very compact 1” helical filter to the very selective 6.625” cavity preselector. Please contact a technical support technician for consultation.

     

  • Specify working frequency, bandwidth, power and isolation required

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Comprod Inc.

Comprod Inc.