I synthesize with ad9361 a harmonic signal at a frequency of 1030 MHz. IF = 4 MHz.
We use the ADI No-OS driver for ad9361.
Have received such result:
- LO level at the output -40dBc
- the mirror copy level of the spectrum (image) -30dBc
The documentation says that LO and image should be around -50 dBc.
The register a7 = fc, i.e. the Lo leakage and Quadrature Calibration algorithms do not converge.
Naturally, for us the level of parasitic harmonics is very important.
Please help me to solve this problem?
I attach a file with configuration parameters.