CPI T04XO 400 W X-Band Outdoor TWTA

CPI T04XO 400 W X-Band Outdoor TWTA

The CPI T04XO is a rugged, weatherproof 400 W X-band outdoor traveling wave tube amplifier designed for fixed and transportable satellite uplink systems. It delivers 350 W minimum saturated output power across 7.9–8.4 GHz, with 70 dB minimum rated gain, serial monitoring and control, and optional Ethernet connectivity.

Output Frequency Range: 7.9–8.4 GHz
TWT Output Power: 400 W (56.02 dBm) min.
Saturated Output Power: 350 W (55.44 dBm) min.
Rated Gain: 70 dB min.; 46 dB with low-gain option
Small-Signal Gain: 75 dB min.; 49 dB with low-gain option
RF Level Adjustment Range: 0–30 dB typ. via PIN-diode attenuator, in 0.1 dB steps
Gain Stability: ±0.25 dB max. over 24 hours after 30-minute warmup
Gain Stability Over Temperature: ±0.75 dB typ. over 10°C
Small-Signal Gain Slope: ±0.02 dB/MHz max.
Gain Variation Over Any 40 MHz: 1.0 dB peak-to-peak max.
Gain Variation Over Full Band: 2.5 dB peak-to-peak max.; 4.0 dB with optional linearizer
Input/Output VSWR: 1.3:1 max.
Load VSWR: 2.0:1 for continuous operation; 1.5:1 for full specification compliance; operation without damage at any value
Phase Noise: 10 dB below the IESS-308/309 phase-noise profile
AC Fundamental Spurious: -42 dBc
Sum of Spurious Signals: -47 dBc from 130 Hz to 1 MHz
AM/PM Conversion: 2.5°/dB max. at 7 dB below rated power; 3 dB below rated power with optional linearizer
Harmonic Output: -60 dBc at rated power
Passband Noise Density: Less than -70 dBW/4 kHz; less than -65 dBW/4 kHz with optional linearizer
Receive-Band Noise Density: Less than -70 dBW/4 kHz across 7.25–7.75 GHz
Intermodulation: -24 dBc max. at 7.5 dB output backoff
Intermodulation with Optional Linearizer: -25 dBc max. at 4.5 dB output backoff, per MIL-STD-188-164B
Spectral Regrowth: -30 dBc at one symbol rate and 6 dB output backoff; 4 dB backoff with optional linearizer
Group Delay Over Any 80 MHz: 0.01 ns/MHz linear max.; 0.002 ns/MHz² parabolic max.; 0.5 ns peak-to-peak ripple max.
Primary Power: Single-phase 100–240 VAC ±10%, 47–63 Hz
Power Consumption: 1,350 VA typ., 1,500 VA max.
Power Factor: 0.95 min., 0.99 typ.
Inrush Current: 200% max.
Cooling: Forced air with integral blower
Operating Temperature: -40°C to +55°C in direct sunlight; -40°C to +60°C out of direct sunlight
Optional Operating Temperature: Up to +60°C in direct sunlight
Non-Operating Temperature: -54°C to +71°C
Relative Humidity: 100% condensing
Operating Altitude: Up to 10,000 ft. with standard derating
Non-Operating Altitude: Up to 50,000 ft.
Shock: 20 g peak, 11 ms half-sine pulse, non-operating
RF Input Connector: Type N female
RF Output Connector: CPR112 grooved waveguide flange with threaded 10-32 UNC-2B holes
RF Output Monitor Connector: Type N female
Standard M&C Interfaces: RS-422/485 and RS-232
Optional M&C Interface: Ethernet
Dimensions: 10.25 × 10.50 × 20.5 in. (260 × 267 × 521 mm)
Weight: 55 lb. (25 kg) typ.
Heat Dissipation: 1,100 W typ.
Acoustic Noise: 65 dBA nominal at 3 ft.
Compliance: CE marked; ISO 9001:2015 quality management

Key Features:

• 400 W minimum X-band TWT output power

• 350 W minimum saturated amplifier output power

• 7.9–8.4 GHz X-band frequency coverage

• Compact, rugged and weatherproof outdoor enclosure

• Suitable for fixed and transportable earth stations

• High-efficiency dual-depressed collector helix TWT

• 70 dB minimum rated gain

• 75 dB minimum small-signal gain

• PIN-diode attenuation in 0.1 dB steps

• Integrated RS-422/485 and RS-232 interfaces

• Digital metering and remote monitoring and control

• Built-in fault diagnostics

• Modular design for simplified maintenance

• Wide 100–240 VAC input range

• Optional Ethernet interface

• Optional remote control panel

• Optional integral linearizer

• Optional integral block upconverter

• Optional integral 1:1 switch control and drive

• Optional redundant and hybrid power-combined systems

• Optional forward-power detection

• Optional low-PIM configuration

• Optional low-gain configuration

• Optional +60°C direct-sunlight operating rating