Before popping the HLK LD1115H radars I noticed that I could get a stronger signal when the orientation of the antenna arrays between TX and RX (CDM-324) was 90 degrees apart.
I found that the signal was stronger when the modules were positioned - relative to each other - as shown in the picture below.
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| This relative position provided strongest signal in the lab environment. |
Before conducting any "long" distance test it is worth checking the effect of "swapping" polarization on one side.
