Xicom XTU-400K 400W Ku-Band Outdoor TWTA with Block Upconverter
The Xicom XTU-400 is a compact self contained antenna mountable power amplifier with built-in block upconverter designed
for low cost installation and long life.
No Shelter Required
Short Waveguide Run
Variable Gain Control
High Efficiency Dual-Stage TWTs
The XTU-400 design eliminates the need for an amplifier shelter as well as a long waveguide run between the amplifier
and the antenna feed horn. For example, an antenna mount 400 Watt Ku-Band amplifier with its shorter waveguide
run will often deliver EIRP comparable to a 600 Watt rack mount HPA.
RF filters, cooling, and monitoring & control systems are all self contained within the HPA. These features provide
high reliability, low maintenance costs, and low replacement costs.
The XTU-400 uses high efficiency dual-stage collector Traveling Wave Tubes (TWT). Some benefits of this type of TWT
are: reduced prime power consumption,
lower internal operating temperatures, and reliability enhancement. These benefits are obtained for both the linear
and saturated modes of operation.
The unit incorporates an L-Band block Upconverter, thereby eliminating the need for a separate outdoor unit (ODU).
The L-Band transmit signal and a 10 MHz reference signal are brought out to the unit on a single coax line.
The XTU-400 may be configured for single thread, redundant, phase-combined,
to linearized operation. A remote external controller is available to operate the HPA from a user selected locations.
Mounting brackets can be supplied to mount the HPA to most popular antennas.
14.0 to 14.5 GHz
950 to 1450 MHz
Input Level, w/o damage (maximum)
Reference Signal Frequency
external 10 MHz
10 MHz Power Level
2 dBm ± 5 dB
Reference Input Impedance
Traveling Wave Tube
Rated Power @ Amplifier Flange (minimum)
Large Signal (minimum)
Small Signal (minimum)
Attenuator Range (continuous)
Maximum SSG Variation Over
Any Narrow Band
&nbps; Full Band
1.0 dB per 80 MHz
± 2 dB
± 0.04 dB/MHz
Stability, 24 hr. (maximum)
± 0.25 dB
Stability, Temperature (maximum)
± 1.0 dB over temperature range at any frequency
with two equal carriers
@ 4 dB total output power backoff from rated power
HARMONIC OUTPUT (maximum)
AM/PM CONVERSION (maximum)
2.5 deg/dB at 6 dB below rated output power
NOISE POWER (maximum)
-70 dBW/4 kHz
-150 dBW/4 kHz
10.95 to 12.75 GHz
Group Delay (maximum)