TX DC calibration not working

Projects LimeSDR
35

No, stock HF unmodified LimeSDR v1.4.

Configuration file:

Here is what I get:

No calibration:

no calibration
automatic.png1024×768 43.7 KB

Stock calibration:

automatic
no calibration.png1024×768 43.7 KB

Manual calibration, using LimeSDR receiver and FFT

manual using LimeSDR FFT
manual using LimeSDR FFT.png1024×768 43.5 KB

Manual calibration, using external spectrum analyzer:

manual using SA
manual using SA.png1024×768 43.4 KB