High-Rate Downlink, Built for LEO Reality.
The X-Band Transmitter delivers reliable, high-throughput downlink for LEO missions with adaptive modulation, DVB-S2 coding, and a flight-ready, modular architecture. Designed to maintain consistent performance across dynamic pass geometries and challenging orbital conditions, X-Band Transmitter helps ensure your payload data reaches the ground, efficiently and predictably.
PRODUCT OVERVIEW
Data Per Pass Reliably, Reliably, Efficiently and at Scale
LEO satellites generate more data than ever, but downlink windows remain short and link conditions change rapidly from pass to pass. X-Band Transmitter was developed by Plan-S to meet these high data-rate demands by combining X-band operation in the 8.025–8.4 GHz band, flexible modulation and coding options, and integration-friendly electrical interfaces.
With in-flight configurable output power and a modular split between the Main Module and Power Amplifier Module, X-Band Transmitter is engineered for practical satellite integration, supporting both single missions and scalable constellations that require repeatable, production-ready downlink performance.
VALUE AT GLANCE
More Data Per Pass & Proven Readiness.
Supports 425 Mb/s throughput to maximize delivered data per contact.
TECHNICAL FEATURES
Parameter
Value
Frequency Range
8025 – 8400 MHz
RF Output Power
Up to 33 dBm (in-flight configurable)
Modulation
QPSK, 8PSK, 16APSK, 32APSK
Data Rate
425 Mb/s
Frequency Stability
±1 ppm (per year) ±3 ppm (10 years)
Supply Voltage
10.5-28V
Interfaces
SERDES, CAN, LVDS, Ethernet
Power Consumption
~32 W (transmit mode)
Volume
Main Module: 126*128*42.5 mm
Power Amplifier Module: 82.5*90*25 mm
Operating Temperature
-40°C +85°C
RADIOS & ANTENNAS PORTFOLIO
Mission-Ready Radios & Antennas
The Radios & Antennas portfolio delivers flight-ready communications hardware for LEO missions. From resilient TT&C links, it offers band and configuration options in compact, integration-friendly form factors.
UHF Deployable Monopole Antenna
A deployable UHF solution designed to deliver wide-area TT&C coverage, with a deployment architecture focused on mechanical confidence.
S-Band Patch Antenna
A compact S-band antenna optimized for dependable TT&C, providing stable links throughout routine operations and contingencies.
X-Band Patch Array Antenna
A high-gain, low-profile array on LEO small satellites while keeping integration simple.
GET IN TOUCH
Move More Mission Data Per Pass, Without Compromising Reliability.
The X-Band Transmitter is designed for LEO missions that require high-rate downlink, dependable on-orbit performance, and integration-ready hardware. It offers configuration options to align with your link budget, thermal constraints, and mission throughput targets.
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