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C-Band Bandpass Filter

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Microwave Filter 7893D TVRO Interference Filter
Description

Microwave Filter 7893D TVRO Interference Filter The Microwave Filter Series 7893D C-Band bandpass filter is installed between a TVRO feedhorn and the LNA orLNB to suppress strong out-ofband interference caused by marine or airport radar systems. Coastal and marine navigational radar frequencies (2.9-3.65 GHz) are just below the TVRO band and frequently wipe-out transponders 1-5 in TVRO’s installed near harbors. The airport altimeter band (4.25-4.40 GHz) will affect channels 22-24 at TVRO sites near airports. The Microwave Filter model 7893D interference filter operates at RF before down conversion. This prevents the generation of undesirable mixer products and receiver “desensitization” due to strong out of band signals.

This is the perfect product for stations having interference on their C-Band Antenna
Works with Starguide, XtremeSat Media, Comstream and X-Digital Systems

Specifications  
Passband 3.7 – 4.2 GHz
Insertion Loss 0.4 dB typ at 
FC
  0.5 dB roll 
off at band edge
VSWR 1.92:1 typ
Group Delay Less than 8 ns 
typ
Rejection  
25 dB min 3.65/4.25 GHz
50 dB min 3.55/4.35 GHz
60 dB min 3.50/4.40 GHz
Mechanical 
Specifications
 
Dimension

5.75"L x 2.75"Hx3.875"D

Weight 2.6 lbs
Flanges

CPR-229G, 
CPR-229

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