On Fri, Mar 5, 2021 at 03:30 AM, Dario Stelitano wrote:

Dear David ,

i think the problem of Esko is the same i have, day by day , same hour. (but not solution at moment)

Dario,

this is the spring solar E10A satellite colinearity. That's the time at noon the sun (with strong microwave radiation) is in your antenna beam.
This causes strong noise, SNR goes down and LOCK might even be lost. Depending on the antenna size this will go away within a week or so
(when the sun has more elevation at noon). You will have the same problem in autumn again ... Twice a year, just pure celestial mechanics.

Regards,
Ernst