Thanks for your quick response, Marcus.
On the 2nd question, I mean, when LO is different from the target RF freq, DSP
will make up the difference. LO leak will become a spurious signal at DSP freq.
Can this LO leak be compensated in USRP? if yes, how?
Thanks.
On Monday, 7 August 2023 at 14:11:08 BST, Marcus D. Leech
<patchvonbr...@gmail.com> wrote:
On 07/08/2023 04:40, zhou via USRP-users wrote:
Hi,
I have a question regarding USRP calibration. I am using X310 and UHD 4.4. To
save calibration time, the step size is set to be 5MHz and the freq range is
[600MHz, 6GHz]. My questions are: 1. will the compensation be made at these
discrete frequencies only, or interpolation will be applied to frequencies
which are between the steps? Interpolation is applied.
2. how to compensate DC offset in case there is DSP freq?
The DC offset compensation is applied based on the *analog* frequency setting
of the RF PLL. The DSP component
is "perfect" from a offset and balance perspective.
Thanks, Hongwei
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