Satellite Communications Transponder (CXS-1000)

L3Harris’ CXS-1000 is a multifunction, software defined transceiver that features multiband and multiwaveform capabilities in a compact footprint. The CXS-1000 is designed for today’s low cost and shorter duration small satellite applications.

The multiwaveform receiver provides flexibility in demodulation, decoding and channel selection. Customers can upload different waveforms and program the frequency during production or on orbit.

The CXS-1000 is designed and radiation-tested for geosynchronous orbit and is available in L and S band with the option of X- and Ka-band functionality. The unit is offered as a single integrated unit or as separate transmitters and receivers for full duplex multiband missions.

L3Harris brings more than five decades of experience in TT&C. The engineering analyses, manufacturing and quality processes used for the unit’s production are consistent with the industry’s high reliability standards.

KEY FEATURES

Offers flexibility through agile, scalable design
Features design for low-cost small satellite applications
Provides increased reliability with prequalified design
Leverages space-proven processes and is adaptable to new space applications

CXS-1000 Specifications

Download the CXS1000 Sell Sheet

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	CXS-1000	CXX-1000	CXK-1000
RECEIVER	L/S-BAND	S-BAND	KA-BAND
Center frequency	1.76 – 1.84 GHz, 2.025 – 2.120 GHz 2	2.025 – 2.120 GHz	30.0 – 31.0 GHz
Data rate	2 – 128 Kbps, 3 Mbps capable	2 – 128 Kbps, 3 Mbps capable	1 – 40 Mbps, > 500 Mbps capable
Modulation	BPSK, SGLS, USB/STDN, ranging, TDRSS, coherency, user defined	BPSK, QPSK, ranging, coherency, user defined	BPSK, DVB-S2 QPSK
Tracking rate/range	10 kHz/sec, ±100 kHz; TDRSS 75 Hz/sec, ±160 kHz 10kHz/sec, +- 1 MHz
Input RF signal	-30 dBm to -120 dBm -50 to -120 dBm

	CXS-1000	CXX-1000	CXK-1000
TRANSMITTER	S-BAND	X-BAND	KA-BAND
Center frequency	2.2 GHz – 2.3 GHz	8.0 – 8.5 GHz	20.2 – 21.2 GHz
Frequency stability	± 10 ppm over life	Locks to 10 MHz external ref	Locks to 10 MHz external ref
Phase noise	10 kHz/sec, ±100 kHz; TDRSS 75 Hz/sec, ±160 kHz
EVM	< 10% RMS
Data rate	2K – 2 Mbps, 20 Mbps capable	1 – 400 Mbps	1 – 500 Mbps, > 1 Gbps capable
Modulation	LPM 1.024 MHz s/c, ranging, BPSK, QPSK, OQPSK, UQPSK, DVB-S2, user defined
RF output power	10 mW to 20 W	10 mW to 10 W	10 mW to 2 W

	CXS-1000	CXX-1000	CXK-1000
TRANSCEIVER
Outline dimension	4.0 in x 4.2 in x 4.0 in (core configuration)	9.6 in x 8.8 in x 3.55 in	9.6 in x 8.8 in x 3.55 in
Mass	2.5 lbs (Al), 3.6 lbs (Cu)	11.4 lbs	11.4 lbs
Mission life	1 to 5 years
Duty cycle	TX: 15%, RX: 100% (typical)
Radiation	50 krad (chassis), tested to GEO levels for destructive SEE, LET > 43 MeV, 26 krad (parts level), ELDRS tested to 52 krads
Bus voltage	28 V ± 6 V, 9.5 – 12.3 V (isolated power)
EMC/EMI	MIL-STD-461F (tailored)
Data/clock interface	RS-422, single-ended, SpW	Ethernet	SpW, Ethernet
Control/status interface	RS-422, SpW	RS-422	SpW
Compatible with several NSA certified and commercial cryptographic products. These include KI-700, KI-55, MCU-110C and MRA-706 crypto solutions

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Satellite Communications Transponder (CXS-1000)