750W Outdoor TWT Medium Power Amplifier
for Satellite Communications
Ku- Band
The VZU-6997V
750 watt TWT Medium
Power Amplifier
— high efficiency in an
environmentally sealed
compact package
designed for outdoor
Easy to Maintain
Provides 750 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 (VZU-6997V7) or
12.75 - 14.50 GHz (VZU-6997VA) frequency
band. Ideal for transportable and fixed earth
station applications.
Modular design and built-in fault diagnostic
capability via remote monitor and control.
Global Applications
Meets International Safety Standard EN-60215,
Electromagnetic Compatibility 2004/108/EC
and Harmonic Standard EN-61000-3-2 to satisfy
worldwide requirements.
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.
Worldwide Support
Backed by over three 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]
750W Outdoor TWT Medium Power Amplif ier
Plays in the Rain
Ku- B a n d
Electrical (continued)
13.75 to 14.50 GHz (VZU-6997V7)
or 12.75 to 14.50 GHz (VZU-6997VA)
Output Power
750 W min. (58.75 dBm)
650 W min. (58.13 dBm)
750 MHz or 1750 MHz
• Integral Linearizer
70 dB min. at rated power
75 dB min. at small signal
• Remote Control Panel
RF Level Adjust Range
0 to 30 dB typ.
• Redundant and Hybrid
Power Combined Systems
Gain Stability
At constant drive & temp.
Over temp., constant drive
(any frequency)
• Integrated 1:1 Switch
Control and Drive
Small Signal Gain Slope
• External Receive Band
Reject Filter (Increases
loss by a minimum of
50 dB up to 13.5 GHz for
13.75 GHz HPA, or up to
11.7 GHz with 12.75 HPA)
• L-Band Block Up Converter
(BUC) --- for specifications
see MKT-90B or TD-104.
BUC is available in
frequency bands 13.75 to
14.0 GHz or 12.75 to 13.25
GHz only.
±0.25 dB/24hr max.
(after 30 min. warmup)
±1.0 dB over oper. temp. range (typical),
±0.75 dB over ±10°C (typical)
±0.02 dB/MHz max.
0.01 ns/MHz linear max.
0.001 ns/MHz sq. parabolic max.
0.5 ns pk-pk ripple max.
Primary Power
Single phase, 200-240 VAC ±10%
47-63 Hz
Power Consumption
2.3 kVA typ.
2.6 kVA max.
Power Factor
0.95 min.
Inrush Current
200% max.
1.0 dB pk-pk max.
3.5 dB pk-pk max. (4.5 dB w/ linearizer)
4.5 dB pk-pk max. (5.5 dB w/ linearizer)
Ambient Temperature
-40°C to +55°C operating,
including solar loading;
-40°C to +75°C non-operating
Input VSWR
1.3:1 max.
Relative Humidity
100% condensing
Output VSWR
1.3:1 max.
Continuous operation
Full spec compliance
Operation without damage
Any value
10,000 ft. with standard adiabatic
derating of 2°C/1000 ft., operating;
50,000 ft., non-operating
Shock and Vibration
20 G peak, 11 msec, 1/2 sine;
2.1 G rms, 5 to 500 Hz.
Acoustic Noise
68 dBA (as measured at 3 ft.)
Heat Dissipation
2000 W max.
Residual AM, max.
-50 dBc below 10 kHz
-20 [1.5 +log F(kHz)] dBc,
10 kHz to 500 kHz
-85 dBc above 500 kHz
AM/PM Conversion
2.5°/dB max. for a single-carrier at
8 dB below rated power (at 3 dB backoff
with optional linearizer
Harmonic Output
-60 dBc at rated power,
second and third harmonics
Noise and Spurious
<-130 dBW/4 kHz, below 12.7 GHz
(below 11.7 GHz w/ 12.75 GHz config.
<-65 dBW/4 kHz, passband to 18.0 GHz
(-60 dBW/4 kHz w/ linearizer)
<-105 dBW/4 kHz, 18.0 to 26.0 GHz
<-125 dBW/4 kHz, 26.0 to 40.0 GHz
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.
Group Delay
(in any 80 MHz band)
Environmental (Operating)
Certificate Number: 30515
-24 dBc or better with two equal
carriers at total output power level
7 dB below rated single-carrier
output (at 3 dB below rated with
with optional linearizer)
Small Signal Gain Variation
Across any 80 MHz band
Across the 750 MHz band
Across the 1750 MHz band
Phase Noise
IESS Phase Noise Profile
12 dB below mask
AC fundamentals
-36 dBc
Sum of spurs (370 Hz to 1 MHz) -47 dBc
MKT 90, ISSUE 14
Cooling (TWT)
Forced air with integral blower
RF Input Connection
Type N Female
RF Output Connection
WR-75 waveguide flange,
grooved, threaded UNC 2B 6-32
RF Output Monitor
Type N female
Dimensions (W x H x D)
14.5 x 13.1 x 24 in.
(368 x 333 x 610 mm)
82 lbs (37.3 kg) typ.