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    Bird 8770 50kW RF Load Water Cooled

    8770 Series, 50 kW, Water-Cooled Terminations are designed as compact, low VSWR and non-radiating terminations for high-power transmitter/transmission line systems. The units generate almost no ambient heat, making installation space minimal and convenient, in any position. The RF power is converted to heat in the hollow resistive film load resistor and directly absorbed by the water flowing through it.

    • Broadband water-cooled load for long-term RF dissipation when heat must be efficiently transferred away from the area
    • Small size may be carried easily, used in any position and installed anywhere there is a source of potable water
    • Requires flow rate of up to 11 gallons (41.8 liters) per minute

    8770 Series, Terminations

    Model Connector
    87753-1/8" EIA, Flanged

    3-1/8" EIA, Unflanged (Flush)

    Product Specifications:
    Item No 8770 Series
    Item Name 50 kW, Water-Cooled Terminations
    Power Rating 50 kW continuous
    Frequency Range and VSWR 1.1 max. 1 kHz - 900 MHz (DC for continuity checks)
    Coolant Potable Water
    Water Temperture Range +5 to +60°C
    Water Flow Rate 9 gal./minute @ 5 °C to 11 gpm @ 60 °C
    (34.2 liters/minute @ 5 °C to 41.8 lpm @ 60 °C)
    Product Type Water-Cooled
    Operating Position Any
    Waterlines 1/2" FPT or 3/4" hose
    Connectors See Model Matrix
    Input Flange Diameter 5-3/16" Dia. (132 mm)
    Finish Black Powder Coat
    Dimensions 19-1/2" L x 3-1/2" Dia. 495 x 90 mm
    Weight 15 lbs. 13 oz. (7.2 kg)

    Bird Specifications and Manual