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The main drawback of miniSAS PCB connectors lies in the fact, that they are manufactured in SMT versions only. The outer metal housing of connector is designed to be mounted using a standard through-hole mounting scheme, a design that unfortunately decreases the durability of the connector.
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The main drawback of miniSAS PCB connectors lies in the fact, that they are manufactured in SMT versions only. The outer metal housing of connector is designed to be mounted using a standard through-hole mounting scheme, a design that unfortunately decreases the durability of the connector.
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\midinsert
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\midinsert
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\clabel[img-miniSAS-cable]{Used miniSAS cable}
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\clabel[img-miniSAS-cable]{Used miniSAS cable}
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\picw=10cm \cinspic ./img/miniSAS_SATA_cable.jpg
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\picw=5cm \cinspic ./img/miniSAS_SATA_cable.jpg
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\caption/f A type of miniSAS cable similar to used.
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\caption/f An example of miniSAS cable similar to used.
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\endinsert
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\endinsert
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\secc Signal integrity requirements
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\secc Signal integrity requirements
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\label[diff-signaling]
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\label[diff-signaling]
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\chap Example of usage
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\chap Example of usage
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For additional validation of system design a receiver setup was constructed.
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For additional validation of system design a receiver setup was constructed.
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\sec Basic interferometer station
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\sec Basic interferometric station
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Interferometry station was selected as most basic setup. We connected the new data acquisition system to two SDRX01B receivers. Block schematic of used setup is shown in image \ref[block-schematic]. Two ground-plane antennas were used and mounted outside of balcony at CTU building at location 50$^\circ$ 4\' 36.102\" N, 14$^\circ$ 25\' 4.170\" E.
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Interferometry station was selected as most basic setup. We connected the new data acquisition system to two SDRX01B receivers. Block schematic of used setup is shown in image \ref[block-schematic]. Two ground-plane antennas were used and mounted outside of balcony at CTU building at location 50$^\circ$4'36.102"N, 14 $^\circ$ 25'4.170" E. Antennas were equipped by LNA01A amplifiers. Coaxial cable length are matched for 5 meters. And antennas were isolated by common mode ferrite bead mounted on cable for minimize signal coupling between antennas. Evaluation system consists SDGPSDO local oscillator subsystem used for tuning local oscillator frequency.
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Antennas were equipped by LNA01A amplifiers. Coaxial cable length are matched for 5 meters. And antennas were isolated by common mode ferrite bead mounted on cable for minimize signal coupling between antennas. Evaluation system consists SDGPSDO local oscillator subsystem used for tuning local oscillator frequency.
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\midinsert
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\midinsert
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\clabel[block-schematic]{Receiver block schematic}
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\clabel[block-schematic]{Receiver block schematic}
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\picw=10cm \cinspic ./img/Coherent_UHF_SDR_receiver.png
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\picw=10cm \cinspic ./img/Coherent_UHF_SDR_receiver.png
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\caption/f Complete receiver block schematic of dual antenna interferometric station.
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\caption/f Complete receiver block schematic of dual antenna interferometric station.
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