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Norsat ATOMBKU025 ATOM Series 25W Standard Ku-Band BUC

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. ATOMBKU025STx Frequency: 14.0 – 14.5 GHzConversion Gain: 60dBNoise Figure: 15dBInput 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 Frequency14.0 to 14.5 GHz
Input Frequency950 to 1450 MHz
Power Output (P1dB)25W
Noise Figure15 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 gain60 dB min
Gain variation over operating band6 dB max p-p
Gain variation over any 40 MHz2 dB max p-p
Gain variation over temperature3 dB max p-p
Input VSWR2.0:1
Output VSWR2.0:1
Spurious @ rated power-55 dBc
AM/PM Conversion @2dB below2.5°/dB rated power
2nd Harmonic @ 3dB below rated power-45 dBc
Monitor & Control
M&C InterfaceRS-232 & RS-485
M&C ConnectorMIL-26482 Series 1 Receptacle, Shell Size 12, 10 Pins
Mute ControlFully configurable (mute enable: high or low, mute default: enabled or disabled)
Low0.0 – 0.8V
High3.0 – 5.0V
Thermal Shutdown Temperature85°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 dimensions170 x 86 x 157 mm
(6.7 x 3.4 x 6.2”)
Weight2.3 kg (5.0 lbs)
Enclosed AccessoriesScrews, gasket, M&C mating connector, power mating connector
RF Input connectorN-Type
RF Output connectorWR-75 (WR-62 above 15 GHz)
Input voltage20 – 56 VDC
Power Consumption with fans165W @ Psat
147W @ P1dB
126W @ 3dB backoff from P1dB
115W @ Quiescent (no signal input)
20W muted
Power ConnectorMIL-26482 Series 1 recepticle Shell size 12, 4 pins

Norsat ATOM Series 25W Standard Ku-Band BUC Datasheet

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