On 2022-09-27 09:01, Avila, Jose A wrote:
Using the UBX board on the x310 and the lo leakage is the same
amplitude if not higher than the signal being played with rfnoc
samples from file.
Can you confirm that it placed .cal files in the appropriate directory:
https://files.ettus.com/manual/page_calibration.html#calibration_data
What gain setting are you using when transmitting?
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Today's Topics:
1. X310 calibration (Avila, Jose A)
2. Re: X310 calibration (Marcus D. Leech)
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Message: 1
Date: Fri, 23 Sep 2022 17:36:37 +0000
From: "Avila, Jose A" <[email protected]>
Subject: [USRP-users] X310 calibration
To: "[email protected]" <[email protected]>
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I have noticeable lo leakage when running the cpp rfnoc replay samples
from file. So I ran the calibration functions but it doesn't seem to
be using the created files since I did not notice a difference. Is
there a function call or setting in cpp I need to add? I thought it
would be automatic. Using uhd 4.2 with X310.
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Message: 2
Date: Fri, 23 Sep 2022 14:16:48 -0400
From: "Marcus D. Leech" <[email protected]>
Subject: [USRP-users] Re: X310 calibration
To: [email protected]
Message-ID: <[email protected]>
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On 2022-09-23 13:36, Avila, Jose A wrote:
> I have noticeable lo leakage when running the cpp rfnoc replay samples
> from file. So I ran the calibration functions but it doesn't seem to
> be using the created files since I did not notice a difference. Is
> there a function call or setting in cpp I need to add? I thought it
> would be automatic. Using uhd 4.2 with X310.
>
Which daughtercards are you using?
I'll note that most of the DC-offset compensation is done in a
daughtercard-independent way and doesn't rely on the
CAL functions as far as I know--there's a continuous "DC offset
removal" function in the FPGA.
When you say "noticeable" what is the magnitude we're talking about?
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