Nice comment Paul GM4ULS , Thank you OM .
Paul GM4ULS said...
Yesterday I was in a three-way QSO on 10m AM with two American operators. The technologies in use were very diverse. One of the stateside hams was an old Johnson Valiant transmitter, the other was using a Flex 5000A software defined set-up, and I was using a little single-band Chinese rig (Anytone AT5555). It's wonderful how such different technologies can be put to the same use.
Software Defined Radio experiment.
Software Defined Radio via Direct Conversions Receivers