Re: [Discuss-gnuradio] turn off DC offset

[Simona Sibio]

Thank you for the tip.

But I tried with False and True in Enable DC offset, and nothing is changed.

The system ran but the spectrum is not changed.

Best regards,

Simona

Il giorno mar 30 lug 2019 alle ore 14:21 Michael Dickens <address@hidden> ha scritto:

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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