1 March 2015

13.5 MHz FMCW HF CODAR

This is the first CODAR (COastal raDAR) that I try to analyze here.
Thanks to HDSDR software I could record the AF signal with a sample rate of 192000 Hz getting a 80Khz bandwidht AF signal, so I could analyze almost the all bandwidth of this CODAR.
This radar is usually visible around 13500.0 Khz (cf) and spreads about 100 Khz: from 13435 to 13540 Khz). 


The modulation is linear FMCW, sweep-rate 2 sps down-chirp:

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