Re: [Discuss-gnuradio] turn off DC offset

Hi Simona - Since you're working in the GRC domain, you need to use variables that make sense in Python ... "False" and "True" -- but without the ""s. "0" is not necessarily "False", etc... try those & see what happens. Hope this is useful! - MLD

On Tue, Jul 30, 2019, at 9:18 AM, Simona Sibio wrote:

Hi everyone,

  I want to disable automatic calibration of DC offset and IQ imbalance in USRP Source block.    I am aware that I need to pass bool value 'false' as the argument to *set_auto_dc_offset* and *set_auto_iq_balance*. The USRP Source block  itself provide this facility in the tab *FE Corrections*. However, it  does not seem to work. 

By providing 0 (boolean false) value in Enable DC Offset Correction and Enable IQ Imbalance Correction do not disable the automation DC offset and IQ Imbalance correction.

I tested this with USRP N210 by simply using USRP Source block. The spectrum plot does not show any changes in both cases.    If I want to force these changes in the UHD code (usrp_source_impl.cc and usrp_source_impl.h), what changes do I need to make?       Thanks,   Simona

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