# Re: Inconsistant Gain in X310

**URL:** <https://www.ruby-forum.com/t/re-inconsistant-gain-in-x310/233189>\
**Category:** GNU Radio\
**Created:** [November 22, 2014, 11:55pm UTC](https://www.ruby-forum.com/t/re-inconsistant-gain-in-x310/233189 "2014-11-22T23:55:10Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![addis\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c4cdca/32.png) [@addis\_a](https://www.ruby-forum.com/u/addis_a)\
**Post date:** [November 22, 2014, 11:55pm UTC](https://www.ruby-forum.com/t/re-inconsistant-gain-in-x310/233189/1 "2014-11-22T23:55:10Z")

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Ben,

I used set\_auto\_dc\_offset(0) and that make things work correctly with  
the X310+LFRX.

I noticed in the osmocom source the DC offset mode can be set. So what  
I’ll do is run it in auto to get the initial correction, halt the flow,  
then run it in manual, and it uses the previously found values.

Though still looks like the N210 and X310 behave differently with the  
LFRX. The N210 seems to do an initial DC offset removal, then turns it  
off. The X310 by default turns it on. I’m thinking it ought to behave  
like the N210.

Thanks,  
Lou