400W Outdoor TWT Amplifier
for Satellite Communications
Ku- Band
The T04UO Series
400 Watt TWT
Amplifier — high
efficiency in an
environmentally sealed
compact package
designed for outdoor
Easy to Maintain
Provides 400 watts of power in a rugged and
compact weatherproof package, digital ready,
for wideband, single- and multi-carrier satellite
service in the 13.75-14.50 GHz frequency band.
Ideal for transportable and fixed earth station
Modular design and built-in fault diagnostic
capability via remote monitor and control.
Cost Effective and Efficient
Mounting at the antenna improves performance
through minimized cable losses and saves cost in
system design. Employs a high efficiency, dualdepressed collector helix traveling wave tube,
reducing operating costs.
Global Applications
Meets International Safety Standard EN-60215,
Electromagnetic Compatibility 2004/108/EC
and Harmonic Standard EN-61000-3-2 to satisfy
worldwide requirements.
Worldwide Support
Backed by over two decades of satellite
communications experience, and CPI’s worldwide
24-hour customer support network that includes
sixteen regional factory service centers.
Designed and built to survive in extremely
adverse environmental conditions and features
increased cooling margin for longer life.
Simple to Operate
User-friendly microprocessor-controlled logic
with integrated RS422/485 computer interface.
Digital metering, pin diode attenuation and
optional integrated linearizer for improved
intermodulation performance.
811 Hansen Way
P.O. Box 51625, Palo Alto, CA 94303
tel: +1 (650) 846-3803
fax: +1 (650) 424-1744
e-mail: [email protected]
400W Outdoor TWT Amplif ier
Plays in the Rain
Ku -B a n d
• 1 RU Remote Control
• Extended Frequency
(12.75-14.5 GHz)
Electrical (continued)
13.75 to 14.50 GHz
Output Power
400 W min. (56.02 dBm)
350 W min. (55.44 dBm)
750 MHz (1750 MHz with ext. band option)
46 dB min. at rated power output
(70 dB with SSIPA);
52 dB min. at small signal
(75 dB with SSIPA)
• Redundant and Power
Combined Subsystems
-24 dBc max. with two equal
carriers at total output power 7
dB (4 dB with optional integral
linearizer) below rated
single-carrier output
Group Delay
(in any 80 MHz band)
0.01 ns/MHz linear max.
0.001 ns/MHz 2 parabolic max.
0.5 ns pk-pk ripple max.
Primary Power
90-264 VAC, single phase;
47-63 Hz
Gain Stability
Power Consumption
At constant drive and temp. ±0.25 dB/24hr max. (after 30 min. warmup)
Over temp. constant drive
±1.0 dB over operating temp. range (any freq.);
Power Factor
±0.75 dB over ±10°C
• Additional External
Receive Band Reject
Filter (increases loss
by a minimum 70 dB
up to 12.7 GHz)
Small Signal Gain Slope
±0.02 dB/MHz max. (±0.04 dB/MHz max.
with BUC option)
• SSIPA with Variable
Attenuator (provides
RF Level Adjust Range of
0 to 30 dB)
Small Signal Gain Variation
1.0 dB pk-pk across any 80 MHz band;
2.5 dB pk-pk across any 750 MHz band;
4.0 dB pk-pk across 1750 MHz band
(4.5 dB pk-pk across any 500 MHz, with
BUC option)
• Integral Linearizer
(requires SSIPA with
attenuator option)
RF Level Adjust Range
0 to 30 dB typ. (SSIPA option required)
Attenuator Step Size
0.1 dB (SSIPA option required)
Input VSWR
• Integrated 1:1 switch
control and drive
Output VSWR
• L-Band Block
Upconverter (BUC --requires SSIPA option)
-40°C to +55°C operating,
including solar loading;
-40°C to +75°C non-operating
Relative Humidity
100% condensing
10,000 ft. (3,048 m) with standard
adiabatic derating of 2°C/1000
ft. (305 m), operating; 50,000 ft.
(15,240 m), non-operating
1.3:1 max. (1.5:1 max. with BUC option)
Shock and Vibration
20 g pk, 11 msec, 1/2 sine
1.3:1 max.
Acoustic Noise
65 dBA @ 3 ft. from amplifier
2.0 max. continuous operation; any value for
operation without damage
Cooling (TWT)
Forced air with integral blower
Residual AM
-50 dBc below 10 kHz
-20 [1.5 +log F(kHz)] dBc,
10 kHz to 500 kHz
-85 dBc above 500 kHz
RF Input Connection
Type N female
RF Output Connection
WR-75 waveguide flange,
grooved with UNC 2B 6-32
threaded holes
RF Output Monitor
Type N female
Dimensions (W x H x D)
10.25 x 10.5 x 20.5 in.
(260 x 267 x 521 mm)
55 lbs (25.0 kg) max.,
with no options
Phase Noise
AC fundamental
Sum of all spurs
• Circuit Breaker Package
(Note: this option is NOT
CE compliant)
12 dB below IESS-308 continuous mask
(3 dB below with BUC option)
-50 dBc (-33 dBc with BUC option)
-47 dBc (-39 dBc with BUC option)
AM/PM Conversion
2.5°/dB max. for a single carrier up to
7 dB below rated power (2.5°/dB max. at
3 dB below rated with linearizer)
Harmonic Output
-60 dBc at rated power
Noise and Spurious
(at rated gain)
<-150 dBW/4 kHz from 10.9 to 12.7 GHz
(to 11.7 GHz with ext. freq. option);
<-100 dBW/4 kHz, 11.7 to 12.2 GHz
(ext. freq. option only)
<-70 dBW/4 kHz transmit band to 18.0 GHz
<-65 dBW/4 kHz transmit band to 18.0 GHz,
(with optional linearizer)
<-105 dBW/4 kHz from 18.0 to 26.0 GHz
<-125 dBW/4 kHz from 26.0 to 40.0 GHz
Certificate Number: 30515
For more detailed information, please refer to the corresponding CPI Technical Description.
Note: 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 110, ISSUE 16
0.95 min.
Environmental (Operating)
Ambient Temperature
• Ethernet Interface
• Higher Operating
Temperature Limit
1.35 kW, typ.
1.5 kW, max.