SSTRX-3000 Transceiver

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The SSTRX-3000 TM/TC Unit provides the full-duplex telemetry and telecommand interface between the satellite and its ground station. The SSTRX-3000 TM/TC Unit has been designed specifically as a compact, low cost unit for use with low-earth-orbit (LEO) satellites. It operates in S-Band, is fully redundant, and is compliant with ECSS/CCSDS Standards. The SSTRX-3000 is an ECSS Class 3 equipment.

The SSTRX-3000 TM/TC Unit comprises two Transceivers and an RFDU in a small and compact form factor. Overall weight is approximately 7.5 kgs. The unit is finished in a flat black polyurethane coating (Aeroglaze Z306 / Z307) but can be delivered also with other finishes. RF connectors are nonmagnetic, Type SMA (MIL-C-39012), Supply, Data/Monitor and HP-Command connectors are non-magnetic, sub-miniature Type HD (NASA GSFC-S-311). The receiver and transmitter are supplied via separate DC/DC-converters, fed via EMI-Filters to reduce reflected ripple current to within the limits set by MIL-STD-461C.

RFDU: A typical RFDU comprises two diplexing filters to enable the TM/TC Units to transmit and receive using one communications link and a 3 dB power divider to connect the diplexer to the two antennas, e.g. for omni-directional coverage. Further configuration arrangements would be available upon request.

RECEIVERS: The receiver accepts an up-link signal in the frequency range 2,025 to 2,110 MHz. The up-link modulation can be 2/4 kbps on an 8/16 kHz subcarrier, SP-L or BPSK (QPSK) at data rates from 2 kbps up to 256 kbps (1 Mbps). The receivers are optimized for low power consumption in the order of 4 Watts, typical.

TRANSMITTERS: The transmitter provides a down-link carrier in the frequency band 2,200 to 2,290 MHz, phase-modulated by the telemetry data in either SP-L, BPSK or (O)QPSK. DVB-S2 over CCSDS could be made available. Data rates from 10 kHz up to 6 Mbps with output power in range +20 dBm to +33 dBm at the antenna port(s) are available.

 

Datasheet

STT-SystemTechnik – SSTRX-3000 Transceiver

Overview
NameSSTRX-3000 Transceiver
ManufacturerSTT-SystemTechnik
SubsystemCommunication
ClassificationTransceiver
Form FactorSmallSat
Vendor Overview
Vendor NameSTT-SystemTechnik
Vendor Websitehttp://www.stt-systemtechnik.de/
Vendor LocationGermany
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SPECIFICATIONS
SubsystemCommunication
ClassificationTransceiver
Form FactorSmallSat
VendorSTT-SystemTechnik
HeritageN/A
Mass7.5 kg
Nominal Power16.0 W

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