Telnet / Challenge One

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9 Products
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About Telnet / Challenge One

ChallengeOne is Tunisia's first satellite, developed by Telnet Holding and launched to a 550 km low Earth orbit via a Soyuz-2 rocket from Baikonur Cosmodrome with a planned 5-year mission duration. The satellite is a LoRa-based IoT gateway orbiting every 90 minutes, enabling low-power, low-bandwidth data communication with ground IoT terminals across North Africa and global coverage passes, supporting three primary application domains: agricultural data analytics for crop optimisation, infrastructure and road network monitoring, and vehicle and asset tracking and location services.

ChallengeOne is also marketed by Telnet as a configurable satellite platform brand: a kit-satellite built from interchangeable subsystem modules (structure, on-board computer, electrical power system, ADCS reaction wheel, LoRa gateway payload, software-defined radio, transceiver, UHF antenna system and a combined camera/antenna module) that can be assembled and operated either in a laboratory for educational purposes or flown in low Earth orbit for operational and scientific missions. The brand covers the full development path from module-level engineering to system integration, environmental testing and launch campaign support.

ChallengeOne demonstrated the viability of small-satellite IoT infrastructure for emerging space nations, establishing Tunisia as a space-faring country and paving the way for Telnet's broader space activities, including its subsequent partnership with Thales Alenia Space.

Milestones

  • 2018 Cooperation agreement signed between Telnet, Aerospace Valley Toulouse and Technopole Sfax
  • 2019 Telnet CEO Mohamed Frikha signs the launch contract for ChallengeOne, Tunisia's first satellite
  • 2019 Telnet Group opens a branch in Russia
  • 2021 ITU grants the operating license for ChallengeOne
  • 2021 ChallengeOne handed over to the Russian launch provider at Baikonur
  • 2021 ChallengeOne launched aboard Soyuz-2 from Baikonur into a 550 km LEO (20 March 2021)

Products

9

Combined imaging payload and RHCP antenna module for the ChallengeOne satellite platform, with an 8-megapixel camera and 862-870 MHz antenna.

1 8

Configurable nanosatellite/kit-satellite platform developed by Telnet for LEO IoT-gateway missions; flight-proven on the ChallengeOne mission (Tunisia's first satellite).

1 9

Space-qualified LoRa (Long Range) gateway payload module for the ChallengeOne satellite platform, receiving low-bandwidth IoT telemetry from ground terminals.

1 9

Onboard computer module for the ChallengeOne satellite platform with dual CAN2B buses, Raspberry Pi camera interface and UART/I2C/SPI/USB connectivity.

1 5

Electrical power system module for the ChallengeOne satellite platform with 3 solar-panel channels (GaAs/Si), battery charging and 4 regulated outputs.

1 8

Attitude-control reaction wheel module for the ChallengeOne satellite platform, part of its Attitude Determination and Control System (ADCS).

1 5

Software-Defined Radio module for the ChallengeOne satellite platform, covering 1 kHz to 2 GHz over a USB 2.0 interface.

1 9

VHF/UHF-band transceiver module for the ChallengeOne satellite platform, supporting up to +33 dBm output over CAN/USB/I2C/SPI interfaces.

1 9

UHF-band (401-402/430-440 MHz) circularly-polarized antenna system for satellite downlink and configuration on the ChallengeOne platform.

1 6

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