GDAS-2 - GNSS Data Acquisition System
System main characteristics:
Captures all common L-band GNSS signals: GPS, Galileo, GLONASS and Beidou/Compass.
Up to 4 independent RF and 6 digital channels.
Accepts 1 to 4 GNSS active antennas (5-40 dB gain).
Programmable, short-circuit protected Phantom power for each antenna (1-12V, 300 mA).
4x4 input matrix allows connection of each antenna to each RF channel in any combination.
User programmable RF channels gain.
Extremely flat group delay in the pass-band range allows easy FDMA processing (GLONASS).
Low phase noise RF and sampling clock PLLs.
Internal 10MHz reference OCXO, +/-5ppb, 10MHz output.
Can be synchronized to an external 10MHz reference (e.g. cesium, rubidium or GNSS-disciplined frequency standard).
DC and interference-free quadrature output.
Per-channel programmable integer decimation ratio and resolution.
Device-to-Host data transfer bandwidth up to 250MB/s.
Compatible with MS Windows 7 and 8, 64 bit.
For more information about GDAS-2:
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