CPI VZX-6987V7

750W Outdoor TWT Medium Power Amplifier
for Satellite Communications
X- Band
The VZX-6987V7
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 7.9 - 8.4 GHz frequency band.
Ideal for transportable and fixed satcom
uplink applications.
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 89/336/EEC and
Harmonic Standard EN-61000-3-2 to satisfy
worldwide requirements.
Worldwide Support
Backed by over three decades of satellite
communications experience, and CPI’s worldwide
24-hour customer support network that includes
fourteen 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
X -B a n d
Integral Linearizer
Remote Control Panel
Redundant and Power
Combined Subsystems
External Receive Band
Reject Filter (increases
loss by a minimum
of 115 dB at 7.25 to
7.75 GHz)
Block Upconverter
(950 - 1450 MHz)
Higher Operating
Temperature Limit
(to 65°C including
solar loading)
Electrical (continued)
Output Power
7.9 - 8.4 GHz
500 MHz
70 dB min. at rated power, 88 dB max.
75 dB min. at small signal, 90 dB max.
RF Level Adjust Range
0 to 30 dB typ. (via PIN diode attenuator)
750 W min. (58.75 dBm)
650 W min. (58.13 dBm)
Gain Stability
At constant drive & temp.
Over temp., constant drive
(any frequency)
Small Signal Gain Slope
Small Signal Gain Variation
Across any 40 MHz band
Across the 500 MHz band
Across 500 MHz,
with linearizer option
±0.25 dB/24 hrs. max.
(after 30 min. warmup)
±1.0 dB over oper. temp. range
±0.75 dB over ±10˚C
±0.02 dB/MHz max.
0.5 dB pk-pk max.
2.5 dB pk-pk max.
3.5 dB pk-pk max.
Input VSWR
1.3 max.
Output VSWR
1.3 max.
Continuous operation
Full spec compliance
Operation without damage
Any value
Residual AM, max.
Phase Noise
phase noise profile
AC Fundamental
Sum of spurs (370 Hz to 1 MHz)
AM/PM Conversion
Noise Power Density
-50 dBc below 10 kHz
-20[1.5 +log F(kHz)] dBc,
10 kHz to 500 kHz
-85 dBc above 500 kHz
Primary Power
Single phase, 200-240 VAC ±10%
47- 63 Hz
Power Consumption
2.2 kVA typ. (at 3 dB backoff)
2.6 kVA max.
Power Factor
0.95 min.
Inrush Current
200% max.
Ambient Temperature
Relative Humidity
-40°C to + 55°C operating,
including solar loading;
-40°C to + 75°C non-operating
100% condensing
10,000 ft. with standard adiabatic
derating of 2°C/1000 ft., operating;
50,000 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 condition.
RF Input Connection
Type N female
RF Output Connection
CPR-112 waveguide flange,
grooved, threaded UNF 2B 10-32
2.5°/dB max. for a single-carrier
at 8 dB below rated power
(at 3 dB backoff with optional linearizer)
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)
87 lbs (39.5 kg) typ.
<-70 dBW/4 kHz, 7.25 - 7.75 GHz
<-65 dBW/4 kHz, 7.9 - 8.4 GHz
<-60 dBW/4 kHz, 7.9 - 8.4 GHz with
linearizer option
-60 dBc per MIL-STD-188-164A
Noise Figure
10 dB max.; 15 dB max.
with optional integral linearizer
-25 dBc max. with two equal carriers
at total output power 7.5 dB (4.5 dB with
optional integral linearizer) below
rated single-carrier output, per
Certificate Number: 30515
Note: Specifications may change without notice as a result of additional data or product refinement. Please
0.01 ns/MHz linear max.
0.001 ns/MHz sq. parabolic max.
0.5 ns pk-pk ripple max.
12 dB below mask
10 dB below mask
-36 dBc
-47 dBc
For more detailed information, please refer to the corresponding CPI Technical Description.
Group Delay
(in any 40 MHz band)
Forced air w/ integral blower. Rear
air intake & exhaust. Maximum
external pressure drop allowable:
0.5 inches water column.
not up in the air
MKT 126, ISSUE 8
-30 dBc max. at total output
power 6 dB backoff (3 dB with
linearizer) QPSK modulation
contact CPI before using this information for system design.
Spectral Regrowth
Heat and Acoustic
Heat Dissipation
Into Hub
2,000 W max.
200 W max.
Acoustic Noise
68 dBA (as measured at 3 ft.)