Channel estimation difference between N310 and B210!

[aibtw]

Hi all,
I was interested in some parameters from channel estimation (monitoring it manually on uplink processor), and I noticed that there is a big difference in the range of values of these parameters between the USRP B210 and N310, as well as Benetel RAN550. The figures below explain what I mean:

N310, as you see, all values are in the negative range. The same happens with RAN550.

But on B210, the same parameters are in the positive range, with some negative outliers:

It would be expected if the gain in N310/RAN550 was low when this happened, but that's not the case. The gain was high, so I am a little confused.
Can someone help me understand the reason behind the difference?

[pgawlowicz]

hi, what are the parameters from channel estimation and how do you extract them?

[aibtw]

sorry for the delay. they are shown on the right of the figures in the legend.
As of how we extract them, simply dumping it to a csv file directly from the cpp files. I am reading the values using the getter functions and dumping it to an output file.

[pgawlowicz]

Do you use the same RX gains in both cases?

[aibtw]

You are probably right, I started playing with RX gain on N310 and the values are definitely closer to the B210 now. Thanks for the help.