X-Band Transmitter
Plan-S (Connecta)
The X-Band Transmitter provides reliable, high-throughput downlink for LEO missions with adaptive modulation, DVB-S2 coding, and a modular architecture.
Key figurescomparable across the catalogue
- Power
- 32 W
- Largest dimension
- 128 mm
- Data rate
- 425 Mbps
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- 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)
- Dimensions
- Main Module: 126*128*42.5 mm
- Dimensions
- Power Amplifier Module: 82.5*90*25 mm
- Operating Temperature
- -20°C +50°C
About
The X-Band Transmitter is designed for LEO missions requiring high-rate downlink, dependable on-orbit performance, and integration-ready hardware. It ensures payload data reaches the ground efficiently and predictably, supporting 425 Mb/s throughput. Developed by Plan-S, it addresses the high data-rate demands of LEO satellites by combining X-band operation in the 8.025–8.4 GHz band, flexible modulation and coding options (QPSK, 8PSK, 16APSK, 32APSK), and integration-friendly electrical interfaces. The transmitter features in-flight configurable output power, making it suitable for both single missions and scalable constellations that require repeatable, production-ready downlink performance. It offers configuration options to align with link budget, thermal constraints, and mission throughput targets.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.