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Norsat ATOMBKU025 ATOM Series 25W Extended Ku-Band BUC

Norsat ATOMBKU025 ATOM Series 25W Extended Ku-Band BUC

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Norsat ATOM Series 25W Extended 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. ATOMBKU025E
  • Tx Frequency: 13.75 to 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

ATOMBKU025E Ext. Ku-Band 25W BUC
Transmit Frequency 13.75 to 14.5 GHz
Input Frequency 950 to 1700 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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