CY310 High Band VHF Switchless Combiner

Any High Band VHF Channel 174 to 250 MHz
2 x 20 kW average power

The Switchless Combiner system consists of two 3 dB hybrid couplers and a motorized, 3-postion phase-shifter. The combiner system is fully integrated and resides in an aluminum floor-mount base. The input connections are both 4-1/16-inch, 50 ohm unflanged, female. The combined output is 6-1/8-inch EIA flanged, male and the reject load port is 4-1/16-inch flanged, male. Test/reject load is customer supplied.

Switchless Combiner Modes:
A to Air and B to Load
B to Air and A to Load
A + B to Air

CY310 Switchless Combiner includes:
  • (2 each)
    3-dB Coaxial Hybrid Coupler
  • (1 each)
    Motorized, 3-position Coaxial Phase Shifter (0, 90, 180 degrees)
  • (1 each)
    1-port Directional Coupler, 4-1/16-inch (at reject load port)
  • (2 each)
    1-port Directional Coupler, 4-1/16-inch (at combiner inputs)
  • (1 each)
    6-1/8-inch, 50-ohm, EIA Flanged Male (at antenna output)
  • Interconnect components between above items
  • Floor-mount base frame
  • Switchless Combiner System does not include Reject Load

CY310 Product Specifications

  • Input Power:
    2 x 20 kW average power, ATSC 1.0
  • Output Power:
    40 kW Average, ATSC 1.0
  • Frequency:
    174 to 250 MHz
  • Tuned to designated 6, 7 or 8 MHz RF channel
  • Input Connectors:
    4-1/16-inch, 50-ohm, Flanged Male
  • Output Connectors:
    4-1/16-inch, 50-ohm, Flanged Male (load)
  • 6-1/8-inch, 50-ohm, EIA Flanged Male (antenna)
  • VSWR:
    1.08 : 1 or better over channel
  • 1.15 : 1 or better over channel (during changeover)
  • Insertion Loss:
    0.20 dB max over channel
  • Input Isolation:
    30 dB min. over channel
  • Coupler Directivity:
    32 dB min. over channel
  • AC Power:
    120 or 240 VAC, 60Hz, < 600VA
  • DC Control Power:
    12 or 24 VDC, 75 MA
  • Ambient Temperature:
    14 to 122 degrees F (-10 to 50 degrees C)
  • Ambient Humidity:
    0 to 95% Relative, non-condensing
  • Altitude:
    0 to 5,000-feet AMSL (0 to 1,524-meters AMSL)

CY310 Outline Drawing

CY310 High Band VHF Switchless Combiner Product Brochure


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