CPI VZU-6994

350/400W Compact Medium Power Amplifier
for Satellite Communications
The VZU-6994
Up to 400 Watt
TWT Medium
Power Amplifier
— high efficiency in a
compact package.
Easy to Maintain
Provides up to 400 watts of power in a 3 rack
unit package, digital ready, for wideband, singleand multi-carrier satellite service in the Ku-Band
frequency range. Ideal for transportable and fixed
earth station applications where space and prime
power are at a premium.
Modular design and built-in fault diagnostic
capability with convenient and clearly visible
indicators behind front panel door for easy
maintainability in the field.
Employs a high efficiency dual-depressed
collector helix traveling wave tube backed by
many years of field-proven experience in airborne
and military applications.
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.
Simple to Operate
User-friendly microprocessor-controlled
logic with integrated computer interface.
Digital metering, pin diode attenuation and
optional integrated linearizer for improved
intermodulation performance.
Global Applications
Meets International Safety Standard EN-60215,
Electromagnetic Compatibility 89/336/EEC and
Harmonic Standard EN-61000-3-2 to satisfy
worldwide requirements.
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]
350W/400W Compact Medium Power Amplif ier
Ku -B a n d
Environmental (Operating)
Output Power
• Remote Control Panel
• Integral Linearizer
• Redundant and Power
Combined Subsystems
• External Receive Band
Reject Filter (Increases
loss - consult factory
for details)
13.75 to 14.50 GHz, 12.75 to 14.50 GHz,
or 14.7 to 15.2 GHz
350W min. (55.44 dBm), all configurations;
400W min. (56.02 dBm), 13.75 to 14.5 GHz
275W min. (54.39 dBm), all configurations;
340W min. (55.31 dBm), 13.75 to 14.5 GHz
500 to 1750 MHz, depending on configuration
1.3 kVA typ., 1.4 kVA, max. for
350W configurations;
1.35 kVA typ., 1.5 kVA max. for
400W configuration
Power Factor
0.95 min.
Ambient Temperature
-10° to +50°C operating
-40° to +70°C non-operating
Relative Humidity
95% non-condensing
10,000 ft. with standard adiabatic
derating of 2°C/1000 ft., operating;
40,000 ft., non-operating
Shock and Vibration
Designed for normal transportation
environment per Section 514.4
MIL-STD-810E. Designed to
withstand 20G at 11 ms (1/2
sine pulse) in non-operating
65 dBA @ 3 ft. from amplifier
RF Level Adjust Range
0 to 20 dB
Gain Stability
±0.25 dB/24hr max.
(at constant drive and temp.)
Small Signal Gain Slope
±0.015 dB/MHz max., 13.75 - 14.5 GHz
±0.02 dB/MHz max., all other configurations
Small Signal Gain Variation
1.0 dB pk-pk across any 80 MHz band;
2.5 dB pk-pk across the entire passband;
4.5 dB pk-pk across passband, with linearizer
Input VSWR
1.3:1 max.
Acoustic Noise
Output VSWR
1.3:1 max.
2.0:1 max. operational; any value for operation
without damage
Cooling (TWT)
Residual AM
-50 dBc below 10 kHz
-20[1.3 +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
-6 dBc
-36 dBc
-47 dBc
RF Output Monitor
Type N female
Dimensions (W x H x D)
19 x 5.25 x 24 in.
(483 x 133 x 610 mm)
60 lbs (27.3 kg) max.
AM/PM Conversion
2°/dB max. for a single carrier at
8 dB below rated power for 350W 13.75
to 14.5 GHz; 2.5°/dB max. at 8 dB below
rated power for all other configurations
Harmonic Output
-60 dBc at rated power, second and third
Noise Density
<-150 dBW/4 kHz in Receive/Reject Band
<-65 dBW/4 kHz in Passband to 18 GHz
<-60 dBW/4 kHz in Passband w/linearizer
-24 dBc max. with two equal carriers
at total output power 7 dB (4 dB with
optional integral linearizer) below rated
single-carrier output; -22 dBc max. at 7 dB
OBO (4 dB w/lin.) for 14.7 - 15.2 GHz config.
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.
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.
Power Consumption
73 dB min. at rated power output;
78 dB min. at small signal
Certificate Number: 30515
110 - 240 VAC ±10%,
single phase 47-63 Hz
(100 VAC optional)
Phase Noise
IESS Phase Noise Profile
AC Fundamental
Sum of All Spurs
MKT 15, ISSUE 16
Primary Power
Forced air with integral blower
Rear air intake & exhaust