783 Series High Power FM Bandpass Filter

author
ERI-Electronics Research, Inc.

783 Series High Power Bandpass Filter; High stability temerature compensated cavities; Standard port configurations – 1-5/8-inch, 3 1/8 inch EIA, 4 1/16 inch, or 6 1/8 inch EIA; Copper/brass construction with stainless steel hardware (critical components are silver plated);  Increased power capability up to 35 kW with appropriate port configuration and forced air cooling; Easily assembled floor standing units (hardware for ceiling suspension available on request or optional vertical floor stands); Factory tuned to customer’s specified channel, yet can be easily field converted to any FM channel; Minor adjustments of cavity resonant frequency can be made during full-power operation of filters. 

Features and Benefits

~ Cylindrical construction provides better mechanical and electrical stability than square or rectangular cavities

~ Factory tuned to customer’s specified channel, yet can be easily field converted to any FM channel

~ Minor adjustments of cavity resonant frequency can be made during full power operation of filters

~ High stability temperature compensated cavities

~ERI filters are loop coupled and fixed with bolted connections to couple cavities

and More!

Product Specs

Band: FM

Frequency Range: 88 to 108 MHz

Number of Cavities: Three (3) or Four (4)

Power Handling: 20 kW convection cooled; 35 kW with optional forced air cooling

Mounting Configurations: Floor or optional vertical floor stands

Insertion Loss: <0.35 dB at ± 150 lHz

VSWR: < 1.1:1 at ±  150 kHz

Group Delay: < 75 ns overall variation ±  150 kHz carrier

                    < 25 ns with optional group delay compensation

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