Data Downlink Subsystems in X-Band have considerable heritage in numerous Earth Observation programs conducted for more than 20 years. Based on this long experience, Tesat is developing an Integrated Downlink Transmitter (IDT) solution.

The solution being developed by Tesat offers the following advantages:

  • Maximized data throughput
  • Minimized latency of data
  • Reduced Ground Station contacts
  • High spectrum efficiency and high transmit power efficiency
  • Improved link budget due to strong SCCC encoding
  • Digital predistortion for linearization of Power Amplifier
  • Reliable end-to-end solution (verified with state-of-the-art receivers)
  • Key technology is Adaptive Coding & Modulation (ACM) allowing the volume of data to adapt to link budget characteristics

The key characteristics of Tesat's IDT include:

  • Compact and lightweight High Data Rate Downlink Transmitter for Earth Observation Satellites
  • Cost attractive design based on class 3 components
  • Features X-Band with GaN SSPA (20 W RF Output Power)
  • High order modulation scheme up to 64-APSK combined with powerful SCCC error correction coding enables reliable communication
  • Up to 1,300 Mbps per channel
  • Data input interface with state-of-the-art WizardLink incl. Flow Control or Space Fibre
  • Technology verified by end-to-end measurements incl. state-of-the-art Ground Station High Data Rate Demodulator

Disclaimer: satsearch is not responsible for any mistakes on this page, although we do our best to ensure correctness. Please report any mistakes to us.

Last updated: 2021-03-14

Integrated Data Downlink Transmitter (IDT)



mass (without panel, without DC harness)
2.5 kg
170 mm
80 mm
100 mm
DC power consumption1
< 75 W
rf output power2
< 20 W
power bus3
21 to 38 V
7 yr
data rate4
160 to 1300 Mb/s
325 MHz
radio signal frequency range
X-Band (8,025 - 8,400 MHz)

1. at 20W RF output power

2. depending on back-off

3. others possible

4. ACM modes 1 - 27

5. roll-Off = 0.3


Submit your request

Request details

The more information you can provide the better.

Personal Information

Submitting your information allows us to get in touch with you once we get a response from the supplier.

Please select one of the following:

Would you like to subscribe to our newsletter?

Requests that are submitted through satsearch are anonymously posted to our leads page.

from our blog

Go to blog

Ground station service providers: an overview of telemetry and telecommand communication services and networks for small satellites

An overview of satellite X-band transmitters available on the global marketplace

S-band transmitters on the global marketplace for space