Hi folks,
I’d like to chime in that I was able to get down to -80 dB noise levels using a V3.2 SensorStation:
This gave us a detection range of ~1100m with both the tag and antenna at a height of ~4m. Better tag + antenna height will improve this figure.
I’ve had to deal with a lot of SS noise myself, but for me, the source was always related to the power supply. Having a linear power supply instead of a switched one greatly reduced the noise for our setup. Similarly, when connecting a car battery directly to the SS, I also got noise, because my connections were bad. I’d recommend testing different power supply options and seeing how the signal changes - it might be another factor that introduces noise into the system, even if you wouldn’t necessarily expect it.
See also my post: Maximum detection range of Lotek nanotags - #17 by Lynn_ten_Napel about the noise issues I was having.