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Norsat ATOMBKU025 ATOM Series 25W Standard Ku-Band BUC

Norsat ATOMBKU025 ATOM Series 25W Standard Ku-Band BUC

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Norsat ATOM Series 25W Standard Ku-Band BUC

The Norsat ATOM series of block upconverters (BUC) are among the smallest, lightest, and most energy efficient transmitters available. The high efficiency of ATOM reduces power consumption significantly, delivering considerable operational cost savings over the lifetime of the device.


  • Model No. ATOMBKU025S
  • Tx Frequency: 14.0 - 14.5 GHz
  • Conversion Gain: 60dB
  • Noise Figure: 15dB
  • Input Connector: Type N female (50 ohm)
  • Output Connector: WR75 waveguide flange
    • Compared to equivalent products, ATOM series BUCs are:
    • Up to 68% smaller and lighter
    • Up to 60% more power efficient
    • More flexible with RF and configuration options


    Norsat ATOMBKU025 ATOM Series 25W Standard Ku-Band BUC

    ATOMBKU025S Std. Ku-Band 25W BUC
    Transmit Frequency 14.0 to 14.5 GHz
    Input Frequency 950 to 1450 MHz
    Power Output (P1dB) 25W
    Noise Figure 15 dB
    Phase noise -72 dBc/Hz at 1 KHz
    -82 dBc/Hz at 10 KHz
    -92 dBc/Hz at 100 kHz
    -102 dBc/Hz at 1 MHz
    Fwd Monitor (15 dB Range) @ CF ±1.0 dB
    Conversion gain 60 dB min
    Gain variation over operating band 6 dB max p-p
    Gain variation over any 40 MHz 2 dB max p-p
    Gain variation over temperature 3 dB max p-p
    Input VSWR 2.0:1
    Output VSWR 2.0:1
    Spurious @ rated power -55 dBc
    AM/PM Conversion @2dB below 2.5°/dB rated power
    2nd Harmonic @ 3dB below rated power -45 dBc
    Monitor & Control
    M&C Interface RS-232 & RS-485
    M&C Connector MIL-26482 Series 1 Receptacle, Shell Size 12, 10 Pins
    Mute Control Fully configurable (mute enable: high or low, mute default: enabled or disabled)
    Low 0.0 - 0.8V
    High 3.0 - 5.0V
    Thermal Shutdown Temperature 85°C (Accuracy ± 3°C)
    Environmental & Physical
    Operating Temperature with fans -40 to +60°C (-40° to +140° F)
    Storage Temperature -54 to +80°C (-65° to + 176° F)
    Outline dimensions 170 x 86 x 157 mm
    (6.7 x 3.4 x 6.2”)
    Weight 2.3 kg (5.0 lbs)
    Enclosed Accessories Screws, gasket, M&C mating connector, power mating connector
    RF Input connector N-Type
    RF Output connector WR-75 (WR-62 above 15 GHz)
    Input voltage 20 - 56 VDC
    Power Consumption with fans 165W @ Psat
    147W @ P1dB
    126W @ 3dB backoff from P1dB
    115W @ Quiescent (no signal input)
    20W muted
    Power Connector MIL-26482 Series 1 recepticle Shell size 12, 4 pins
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