B3KO-A - Communications & Power Industries

40 W Ka-band BUC
CPI-Built RF Brick Inside
Robust CPI design and manufacturing, combined with
plenty of thermal margin, results in a BUC that is rock-solid,
highly efficient and easy to maintain.
Highly Linearity
Excellent AM/PM, phase noise and spectral
regrowth performance.
Simple to Operate
User-friendly microprocessor-controlled logic with Ethernet
computer interface (serial interface optional). Also contains
digitally controlled attenuator. Redundant systems available.
Extended Band Operation
Provides 20 watts of linear power over selected bandwidth
from 500 to 1000 MHz within the 29 to 31 GHz band. An
optional multi-band BUC is available that allows the user to
switch among pre-selected frequency bands.
Global Applications
Perfect for Satcom on the Move, Micro Flyaway Systems,
VSATs, and antenna-mount applications. Meets
Electromagnetic Compatibility Directive 2004/108/EC to
satisfy worldwide requirements and is CE-marked.
Model B3KO-A
40 watt Ka-band BUC
for satellite uplink applications
•Multiplexed 10 MHz reference
•Multi-band BUC: select from multiple
factory-set frequency bands within
•1 RU remote control
•Other frequency ranges within Ka-band )
contact CPI for details)
•RS-232, RS-422, RS-485 serial interface
•AC option (requires external AC converter
model 7580B
•1:1 redundant switching
•Linearizer - delivers additional 1.5 dB of
output RF power.
•Remove BUC
Worldwide Support
Backed by over 35 years of satellite communications
experience, and CPI’s worldwide 24-hour customer
support network that includes more than 20 regional
factory service centers.
811 Hansen Way, PO Box 51625
Palo Alto, CA 94303 USA
+1 (650) 846-3803
+1 (650) 424-1744
Specifications 40 W Ka-band BUC
L-Band Input
Output Power (min.)
Saturated (Psat, CW)
Linear (Plin)
Linear (Plin) with linearizer
Model B3KO-A
Select any of 29.5 to 30.0 GHz, 29 to 30 GHz or 30 to 31 GHz (others available - contact CPI for details)
950 to 1450 MHz, 950 to 1700 MHz, 1 to 2 GHz (others available)
40 watts (46 dBm)
15 watts (41.76 dBm) over temp. and freq.
21 watts (43.22 dBm) over temp. and freq.
Local Oscillator Frequency
28.05 GHz
Small Signal Gain
57 dB min.
Gain Stability
Over temp, constant drive
Over 24 hours, fixed temp.
±2.0 dB max.
±0.25 dB
Gain Slope
Gain Stability
±0.04 dB/MHz max.
±1.75 dB max. over full band; ±0.5 dB pk-pk max. over any 10 MHz
Gain Adjustment Range
20 dB
Input VSWR/Output VSWR
1.5:1 max. (50 ohms)/1.35:1 max./
2.0:1 continuous operation; 1.5:1 full spec. compliance
Residual AM, max.
-80 dBc > 100 kHz from carrier
-25 dBc max. with respect to each of two equal carriers 5 MHz apart, at 15 W output power
Phase Noise External Reference
10/50 MHz auto-detect
-125 dBc/Hz at 10 Hz; -150 dBc/Hz at 100 Hz; -160 dBc/Hz at 1 kHz; -165 dBc/Hz at 10 kHz;
Level from -12 dBm (min) to +5 dBm (max.)
Output Phase Noise
3 dB better than MIL-STD-188-164A
AM/PM Conversion
2.0˚/dB max. for a single carrier at rated linear power
Harmonic Output
-60 dBc max. at rated linear power
Spurious Response at P(lin)
Noise Power Density
-60 dBc max. in band
<-150 dBW/4 kHz, receive band; <-70 dBW/4 kHz, passband
Group Delay
0.03 ns/MHz linear max, 0.003 ns/MHz2 parabolic max, 1.0 ns pk-pk ripple max. in any 80 MHz band
Prime Power
48 VDC ±20% (AC optional)
Power Consumption
Ambient Temperature
420 watts max. at P(lin)
-40˚C to +50˚C operating in direct sunlight; -40˚C to +60˚C operating out of direct sunlight; -54˚C to +71˚C non-operating
Relative Humidity
Altitude (operating)
100% condensing
12,000 feet with standard adiabatic derating of 2˚C/1000 feet, operating; 50,000 feet, non-operating
Shock and Vibration
Integral forced air
20 g peak, 11 msec, 1/2 sine; 2.1 grms, 5 to 500 Hz
RF Output Connection
WR-28 grooved waveguide flange
L-band Input Connection
Type N female
M&C Interface
RJ45 Ethernet connector; 12-10 circular MIL serial I/O (serial interface optional)
Remote Status
Transmit ON/OFF; Summary Fault Temp; Fault Identification; RF Inhibit (ON/OFF); Lock Detect
Remote Control
Transmit ON/OFF; Fault Reset; Attenuator Setting
Dimensions, L x W x H (not
including connectors, isolator
or top screws, contact CPI for
outline drawing if needed)
12.50” x 6.43” x 6.30” (318 x 164 x 160 mm)
16 lbs (7.5 kg) typ, DC input version
Quality Management
System - ISO 9001:2008
For more detailed information, please refer to the corresponding CPI technical description if one has been
published, or contact CPI. Specifications may change without notice as a result of additional data or product
refinement. Please contact CPI before using this information for system design.
MKT 275, ISSUE AA dated JUL 2015