L-3 Cincinnati Electronics (CE) offers a wide choice of modulators and transmitters for spacecraft ranging from X-Band to Ku-Band. All the products listed below can be customized to specific user requirements.

  • T-704 X-Band Low Power QPSK Data Transmitter
  • T-708 X-Band QPSK Data Modulator
  • T-712 X-Band High Rate QPSK Transmitter with PECL Interface
  • T-717 X-Band 300 Mbps QPSK Transmitter with LVDS Interface
  • T-720 Ku-Band TDRSS Compatible Transmitter
  • T-722 X-Band 400 Mbps Secure QPSK Transmitter with LVDS Interface
  • 8-PSK X-Band 8-PSK Transmitter

T-704 X-Band Low Power QPSK Data Transmitter.

00Model T-704 is a QPSK or OQPSK X-Band transmitter with a 3W SSPA designed for use on satellites to transmit large volumes of payload data. The unit supports data rates to 25 Mbps, providing low-cost, high-performance data transmission capabilities for satellite applications. The model T-704 is a high-reliability, state-of-the-art data transmitter, which finds wide use on remote imaging satellites.

  
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T-708 X-Band QPSK Data Modulator.

00Model T-708 is a QPSK or OQPSK X-Band modulator with a 4 mW output to drive a high power TWTA. The unit features commandable data rates of 15 Mbps and 150 Mbps via a redundant high speed PECL interface.

  

T-712 X-Band High Rate QPSK Transmitter with PECL Interface

00Model T-712 is a QPSK or OQPSK high rate transmitter designed for spacecraft/satellites where large volumes of payload data must be transmitted. This unit employs a solid-state power amplifier design capable of delivering a nominal 6-watt output, and can be commanded "ON" and "OFF". A redundant high speed PECL interface is standard.

  

T-717 X-Band 300 Mbps QPSK Transmitter with LVDS Interface

00Model T-717 is a QPSK or OQPSK high rate transmitter with a parallel LVDS interface. The unit is optimized for the 8.0 - 8.4 GHz band and maintains an EOL output power of 8 Watts. The solid-state power amplifier contains a bandpass filter providing NTIA spectral emissions compliance. Using the LVDS interface, the unit is designed for data rates up to 150 Mbps per channel (I and Q) with NRZ-L to NRZ-M conversion. Additionally, at less than 8.5 lbs, the T-717 is designed for mission durations greater than 5 years with a minimum tolerance of 60 kRad behind 100 mils of shielding.

 

  

T-720 Ku-Band TDRSS Compatible Transmitter

00Model T-720 is the first generation Ku-Band TDRSS compatible transmitter building upon an extensive X-Band product heritage by adding an up-converter to a heritage X-Band modulator. This unit is optimized for the TDRSS Ku-Band Single Access (KuSA) Return Service centered at 15.0034 GHz. Customizable to virtually any data rate supported by KuSA Return Service, the T-720 offers extraordinary flexibility. The unit can be configured with a 10 Watt (EOL) SSPA or with a 10 dBm output to drive a TWTA. Commandable rate 1/2 FEC and NRZ-L to NRZ-M data conversion are also supported.

 

  

 

T-722 X-Band 400 Mbps Secure QPSK Transmitter with LVDS Interface

00Model T-722 OQPSK secure wideband X-Band transmitter builds upon an extensive line of heritage X-band heritage products to offer a unit with a 400 Mbps data rate. The unit features a high speed parallel LVDS interface, embedded 128 or 256 bit AES encryption, commandable Reed Solomon encoding with flow control, and an 8 Watt SSPA that is adjustable by command in 0.5 dB steps.

 

8-PSK Data Transmitter

00The 8-PSK Data Transmitter Unit provides a spectral efficient 8-PSK modulation on an X-Band carrier. Features include a high speed LVDS interface, Gray code symbol mapping, and NRZ-L to NRZ-M conversion. The unit employs a solid-state power amplifier design capable of delivering a nominal 20 Watt output to an externally mounted SRRC filter and can be commanded "ON" and "OFF". The transmitter can be customized to support data rates up to 700 Mbps. The modulator and power amplifier may be purchased separately or as a combined unit.