N.B. Tonight i have made a test:
i have tried to TX with my Kenwood TS-2000X and RX with the Pluto and have noticed that if i TX in FM so the the
modulation is clear and understandable perfectly while if i TX in USB, i get the problem above.
If it can help to understand the problem.
Thanks once more
Hi,
There is no sense to test with FM as you can not see the problem as you describe it. In order to find the source of the problem you must first identify better what the problem is, then try to isolate it and finally to solve it.
For the first step my proposal is to send with a good source a steady carrier (CW) and see receiving it in Pluto in a zoom mode what you see in SSB Rx. You can post the image here to view it.
For the second step try to isolate it. For example try to Tx a carrier and receive it . It has the same problem? Disconnect any possible power supplies , connections for possible ground loops. Can you hear the TCXO using a SSB receiver to see if the signal is clean? Do not use the Ethernet adapter if you do so. Replace the USB cable. In the isolation phase you have to find the root cause of the problem. If you can solve the problem anyway, is good starting point to isolate it.
After isolating the problem you can see what solution you can provide to eliminate it.