Hello Domenico,
I was waiting till a proper orbit of AO-7 for reply to it. Today ( AO-7 .077 orbit ) I kept a QSO with Roland, PY4ZBZ, Joe, K3SZH and Rocco, W2RTV. And I did not notice any deviation in the uplink or modulation of the AO-7. The signs were good between 5/5 and 5/7. However I could only hear better, when the satellite passed over my station. At the end of the orbiter with 1 degree of elevation, when the satellite was heading to North America I listening Rocco calling " Cq ". I'm more excited. It might have been problems in one of its solar panels. I have not read anything about the operation of the same however I seem to be making any changes in the satellite position justifies the significant improvement in the RX after the passage of AO-7 on my station. In orbirt "opposite" when the satellite comes from Europe to South America, I noticed many deviation in uplink frequency.
73'
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