7894D-Series C band Interfierence filter
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Microwave Filter Company - 7894D-Series C band Interfierence filter

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Historically, the solution for eliminating out-of-band interference (e.g. – RADAR) has been to install a highly-selective bandpass filter. Specifically, a filter with a passband correspond-ing to that region’s standard footprint (i.e. – 3700-4200 MHz, 3400-4200 MHz, etc.).

However, not long ago, WiMAX began operating in the (3400-3800) MHz frequency band in many regions around the world. This common band operation causes in-band interference at C-band receive sites that cannot be eliminated with “standard footprint” BPFs.

Example : WiMAX – operating at 3700 MHz – causes interference at a C-band receive site (where the footprint is 3700-4200 MHz). A standard footprint BPF will pass all frequencies from 3700 4200 MHz (i.e. – including the interfering WiMAX signal).

Solution : Install an MFC model 7893D-3780/4200 bandpass filter that will provide 30 dB rejection at 3700 MHz and will pass all remaining C-band from (3780-4200) MHz.

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Description

  • Low Insertion Loss – Typically less than 1 dB
  • Also Rejects Transmit Band (5800-6725 MHz) >70 dB Typ –
    Eliminating the need for a separate TRF
  • Low Group Delay Variation – 8 nS Max
  • Compact Size – For easy installation on single or multi-feed LNBs
  • Superior VSWR Performance – 1.5:1 Max
  • Quick Turnaround – Most orders ship within (1-5) days ARO

Brand

Microwave Filter Company

"COMMITTED TO EXCELLENCE" SINCE 1967 MIcrowave Filter Co.,has been a leader in the design, development and manufacture of high quality filter products for more than 45 years. They offer a complete line of CATV headend channel deletion filters and networks, bandpass filters and diplexers for wireless and PCS applications. All MFC filters are produced within our modern 40,000 square foot facility by a staff that is “Committed to Excellence”.

Additional information

Weight 11 lbs
Dimensions 12 × 12 × 6 in