[Orion] ORION CW question

[G.C.]

Hi dear friend,

I just received my new TT Orion RTX with the antenna tuner option.
Now I'm spending the spare time to study the operating manual and learning all the Orin features.
I'm mainly a CW user and during my first QSO I noted an annoying sound during the TX.
The sidetone is set to 5, speaker is off, nevertheless I listen "like a small relay" click sound located close to the
rear and on the right side of the apparatus, near the ant outputs.
After sending each dot or line there is this "bit" sound that is very bad.
So, any other ham has experienced with this problem?

Please let me know your comments and suggestion. Thanks.

Ciao de Beppe IZ2ABU