FI136 Integrated Low Power FM Channel Combiner

ERI’s Model FI136 is a compact two channel FM combiner primarily intend for combining FM translators into a shared FM antenna. This product is a single wall mounted cabinet that combines any two FM channel, minimally separated by at least 1.6 MHz. The convection cooled FI136 is rated for up to 750 W per input and a combined output of 1.5 kW.


The combiner is temperature compensated and the filter set is constructed of lightweight Aluminum with copper resonators. Non-adjacent coupling increases rejection of transmitter out of band emissions. The combiner includes a single port directional coupler at the combined output and directional couplers for the combiner inputs are optionally available.

Features and Benefits

  • Factory tuned to customer’s specified channels, yet can be easily field converted to any FM channel
  • High stability temperature compensated cavities
  • Ability to change frequency quickly and with a minimum of disassembly
  • Compact filter


  • Band:
  • Frequency Range:
    88 to 108 MHz
  • Minimum Frequency Spearation:
    1.6 MHz
  • Input Connectors:
    7-16 DIN female
  • Output Connector:
    Specify 7/8-inch or 1-5/8-inch EIA flanged, male
  • Input Power Handling Capability:
    750 watts per input
  • 1.5 kW combined output
  • Combiner Length:
    29.6 inches | 752 mm
  • Combiner Width:
    24.0 inches | 610 mm
  • Combiner Height:
    5.1 inches | 130 mm
  • Combiner Weight:
    45 lbm | 20.4 kg
  • VSWR:
    < 1.1:1, ±150 kHz, maximum
  • Insertion Loss:
    < 0.60 dB
  • Group Delay
    < 75 nsec overall variation ±150 kHz

Product Brochure

FI136 Integrated Low Power FM Channel Combiner Product Brochure

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