CPI TL12DO-L1 1.25 kW DBS-Band Liquid-Cooled SuperLinear Outdoor TWTA

CPI TL12DO-L1 1.25 kW DBS-Band Liquid-Cooled SuperLinear Outdoor TWTA

The CPI TL12DO-L1 is a rugged, weatherproof 1.25 kW DBS-band liquid-cooled SuperLinear outdoor traveling wave tube amplifier designed for satellite uplink applications. It provides 1,100 W minimum peak power and 552 W guaranteed continuous-wave power at the output flange across 17.3–18.4 GHz. Its liquid-cooling system delivers quiet, efficient operation in demanding fixed and transportable earth stations.

Output Frequency Range: 17.3–18.4 GHz
Bandwidth: 1,100 MHz
TWT Peak Power: 1,250 W (60.97 dBm) min.
Flange Peak Power: 1,100 W (60.42 dBm) min.
Guaranteed CW Output Power: 552 W (57.42 dBm) min.
Maximum CW Output Power: 600 W (57.78 dBm) max.
Gain: 70 dB min.
RF Level Adjustment Range: 30 dB typ., 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 over any 10°C
Small-Signal Gain Slope: ±0.04 dB/MHz max.
Gain Variation Over Any 80 MHz: 1.0 dB peak-to-peak max.
Gain Variation Over Full Band: 3.0 dB peak-to-peak max.; 4.0 dB with optional linearizer
Input VSWR: 1.3:1 max.
Output VSWR: 1.3:1 max.
Load VSWR: 2.0:1 for continuous operation; 1.5:1 for full specification compliance
Phase Noise: 12 dB below the IESS-308/309 mask
AC Fundamental Spurious: -47 dBc
Sum of Spurious Signals: -50 dBc from 130 Hz to 1 MHz
AM/PM Conversion: 2.5°/dB at 7 dB output backoff; 3 dB backoff with optional linearizer
Harmonic Output: -60 dBc at rated power for second and third harmonics
Spurious Output: -60 dBc max.
Receive-Band Noise Density: Less than -150 dBW/4 kHz across 10.00–12.75 GHz
Transmit-Band Noise Density: Less than -70 dBW/4 kHz with optional linearizer
Noise Density, 18.9–20.0 GHz: Less than -105 dBW/4 kHz
Intermodulation with Linearizer: -25 dBc relative to each carrier at 440 W total output; -26 dBc relative to the sum of both carriers at 550 W
Noise Power Ratio: 19 dB at 440 W output with optional linearizer
Spectral Regrowth: -30 dBc at one symbol rate and 3 dB below rated flange peak power with optional linearizer
Group Delay Over Any 80 MHz: 0.02 ns/MHz linear max.; 0.002 ns/MHz² parabolic max.; 1.5 ns peak-to-peak ripple max.
Primary Power: Single-phase 208–240 VAC ±10%, 47–63 Hz
Power Consumption: 2.8 kVA typ.; 3.1 kVA max.
Power Factor: 0.95 min.
Cooling: Liquid-cooled; water flow rate of 1 gal./min. (3.79 L/min.)
Maximum Coolant Inlet Temperature: +60°C
Operating Temperature: -40°C to +60°C out of direct sunlight; -40°C to +55°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 of 2°C per 1,000 ft.
Non-Operating Altitude: Up to 50,000 ft.
Shock: 20 g peak, 11 ms half-sine pulse
Vibration: 2.1 g RMS from 5–500 Hz, non-operating
RF Input Connector: SMA female
RF Output Connector: WR-62 grooved waveguide flange with threaded 6-32 UNC-2B holes
RF Output Monitor Connector: SMA female
Standard M&C Interface: Ethernet
Optional Serial Interface: RS-422/485
Dimensions: 12.75 × 10.06 × 22.25 in. (324 × 255 × 566 mm)
Weight: 72 lb. (32.7 kg) without options
Heat Dissipation: 2,000 W typ.
Compliance: CE marked; ISO 9001:2015 quality management

Key Features:

• 1.25 kW minimum DBS-band TWT peak power

• 1,100 W minimum peak power at the output flange

• Guaranteed 552 W continuous-wave output power

• 17.3–18.4 GHz DBS-band frequency coverage

• Liquid-cooled design for quiet, efficient operation

• Optimized for linear-power operation

• Rugged, compact and weatherproof outdoor enclosure

• Suitable for fixed and transportable satellite uplinks

• 70 dB minimum gain

• PIN-diode attenuation in 0.1 dB steps

• Integrated Ethernet monitoring and control

• SNMP v1, v2 and v3 support

• CAN-Bus architecture for improved reliability and noise immunity

• Built-in fault diagnostics and remote monitoring

• Modular design for simplified maintenance

• Optional integral linearizer

• Optional integral block upconverter

• Optional integrated 1:1 or 1:2 switch control and drive

• Optional redundant and hybrid power-combined systems

• Optional RS-422/485 serial interface

• Optional remote control panel

• Optional air-cooled configuration

• Optional TWT LifeExtender/LifePredictor technology