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00L-3 Communications Cincinnati Electronics (CE) offers a variety
of TT&C Receivers and Transmitters for various mission requirements.
L-3 CE can customize any of the products listed below to fit
any mission command and telemetry needs.
0000CR-312 S-Band Dual Mode TDRSS/BPSK Digital Command Receiver
0000CR-313 S-Band Configurable STDN/Residual Carrier/BPSK Digital
Command Receiver
0000T-710B S-Band BPSK/QPSK Telemetry Transmitter
0000T-715 S-Band TDRSS MA/SA Telemetry Transmitter
0000T-719 S-Band Configurable TDRSS/QPSK Telemetry Transmitter
0000T-721 X-Band UA-QPSK Telemetry Transmitter
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CR-312
S-Band Dual Mode TDRSS/BPSK Digital Command Receiver
00Model CR-312
is an S-Band TDRSS/BPSK digital command receiver features advanced
digital signal processing techniques implemented in radiation
hardened Field Programmable Gate Arrays (FPGA). This digitally
based design approach delivers superior, repeatable receiver performance
and reliable operation over the entire range of signal dynamics
and
environmental conditions experience in the space flight environment.
Despreading, carrier acquisition, doppler tracking, carrier demodulation
and bit synchronization are all performed digitally to produce
the baseband data and clock output. Additionally, the receiver
features
auto modulation and data rate detection capabilities. 
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CR-313
S-Band Configurable Digital Command Receiver
00Model CR-313 is an
S-Band configurable digital command receiver. This receiver features
advanced digital signal processing techniques
implemented in radiation hardened Field Programmable Gate Arrays
(FPGA). Due to the digitally based design approach, the receiver
can be configured at the time of manufacture for a variety of command
uplink waveforms including NASA Spaceflight Tracking and Data Network
(STDN), BPSK, Residual Carrier Direct Modulation as well as USAF
SGLS (Space-Ground Link System). 
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T-710(B)
S-Band BPSK/QPSK Telemetry Transmitter
00Model T-710(B) is a low-power
light-weight (4.5 lbs) factory selectable (BPSK/QPSK) telemetry
transmitter for spacecraft telemetry applications.
The unit accepts data at rates up to 3.2 Mbps per channel (un-coded)
and employs a GaAs SSPA to generated 3 Watts of (nominal) RF output
power.

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T-715
S-Band TDRSS MA/SA Telemetry Transmitter
00Model T-715 is an S-band
TDRSS Multiple Access compatible telemetry transmitter. The unit
is compatible with TDRSS Data Group 1 Mode
2 and Data Group 2 modes. Offering commandable forward error correction
and pseudo random (PN) spreading, the T-715 provides flexibility
for various mission scenarios. Weighing less the 5 lbs with and
RF output power greater than 38 dBm, the T-715 can also be factory
tuned
in frequency to operate with one of the many TDRSS single access
S-band telemetry channels. 
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T-719
S-Band Configurable TDRSS/QPSK Telemetry Transmitter
00Model T-719
is an S-band dual mode TDRSS/GN transmitter compatible with TDRSS
SA SQPN return service. The transmitter is unique in the
fact that it can be commanded into a GN BPSK/QPSK mode or a simultaneous
TDRSS SQPN and GN BPSK mode. The unit has commandable rate 1/2
forward error correction along with either single channel or dual
channel
SQPN operation. The SSPA delivers 5 Watts EOL at the output of
a transmit filter the limits emissions. 
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T-721 X-Band UA-QPSK Telemetry Transmitter
00Model
T-721 is a narrowband X-band transmitter optimized for low
rate telemetry downlinks. This unit offers unbalanced QPSK modulation
with a variable I/Q power ratio. This allows the spacecraft
designer
to utilize independant I and Q channels with different data
rates. The 3W output spectrum is compliant with NTIA specifications
and
can be centered anywhere in the 8.0 to 8.4 GHz band. |
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