Hi friends. IS0GRB-3 has switched to PSK500. I'm using FLDIGI 3.13AZ. Reports are appreciated. The power is always 120W. I verified the modulation with the oscilloscope and setup the fldigi to work fine with psk500. Little adjustments in the mixer was necessary. The modulator of the kenwood work differently with psk500. Rig is Kenwood TS-450S. 73 Roberto IS0GRB