James,
In the case of DC calibration for tx, we'd recommend running the dc
calibration routines provided with UHD for each unit. The cal routines
make it a relatively easy process.
In theory, if the average DC offset is non-zero you may be able to apply
an average correction and see some improvement - but less than a
per-unit calibration. I don't have have any data on hand for an average
DC offset.
I'm cross-posting to the usrp-users list, which is more oriented to USRP
specific questions.
Best Regards
John Malsbury
On 6/1/2012 8:57 PM, James Jordan wrote:
Hi list,
I need to compensate usrp dc offset. but the dc offset is different
from unit to unit. so do I need to calibrate each unit dc offset or
there is a universal value that work
for each unit?
Regards
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