Full-duplex multimode transponder for space communications
The C/TT-524 is a highly capable narrowband transceiver which provides S-Band receive and X-Band transmit capabilities over a variety of NASA networks and protocols. Based on our flight-proven C/TT-520 transceiver product line, the C/TT-524 is designed for maximum configurability and can be easily tailored for numerous protocols and
mission profiles.
Designed with a traditional EEE Level 2 parts and material program, the C/TT-524 adapts the latest technologies within our proven parts and design methods for absolute mission assurance.
The C/TT-524 is fully qualified and flight proven, with multiple units currently operating in LEO. Much of the C/TT-524’s design, including its receiver subassembly, is shared with our parent C/TT-520 product, which has been launched on more than a dozen missions since 2018 with nearly 10 years of cumulative operation time.
VERSATILITY
The C/TT-524 is configurable to suit both your mission and your spacecraft bus. Selectable parameters include RF, 1 of 85 gold codes, receive and transmit data rates, receive and transmit modulations, RF output power, encryption/decryption, convolutional encoding, Viterbi decoding and Reed Solomon encoding/decoding. Available interfacing includes RS-422, low-voltage differential signaling and universal asynchronous receiver-transmitter.
EXPERT SUPPORT
The C/TT-524 is designed, built, assembled and tested all within one facility and is serviced and supported by engineering professionals with decades of spaceflight design experience. Every C/TT-524 delivered is accompanied by domain expertise in parts, materials, radiation analysis, mechanical engineering, power supply design, digital signal processing, radio frequency design and manufacturing engineering. For most applications, we can provide existing data items for review, reducing the analysis and testing required.
Yes, we retrofit legacy systems (e.g., GE Frame 5, Siemens V94.2) with modern digital controllers, typically completing hardware integration within 4-8 weeks. Software migration requires additional validation time.
We recommend annual performance testing under ISO 3977-2 standards. Critical applications (e.g., offshore platforms) may require semi-annual tests with emissions compliance checks.
All rad-hard devices (e.g., FPGA, ADC) are QML Class V certified under MIL-PRF-38535 and tested to MIL-STD-883 Method 1019 for SEU tolerance. Full qualification reports are available upon request.
Our ASICs and power management ICs operate across -55°C to +175°C ambient temperatures, with derating curves provided in military temperature range (MTR) datasheets.
Our PMA parts (e.g., actuators, sensors) hold FAA/EASA Form 1 certification and match OEM form/fit/function. Installation requires SB/MB documentation per FAA AC 23.1529.
All NAS/MS fasteners include full DNA traceability: melt source (AMS 2301), heat/lot numbers, and AS9100-compliant MTRs with ultrasonic test reports.
AOG orders ship within 4 hours for stocked items (FAA-PMA, EASA Part 21G). Non-stock critical parts trigger priority manufacturing with 72-hour max turnaround.
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