Saturday, April 9, 2016

Experience with Icom IC-7300

The IC-7300 arrived about April 1.  The IC-9100 came off the shelf above the computer desk and the IC-7300 went in it's place.

The hamlib-3.2 drivers with IC-7300 support got installed today, some comments...

  • The IC-7300 only supports a narrow bandwidth SSB digital mode option.  On the IC-9100 the SSB digital mode with selectable bandwidth that covered both the JT-65A and JT9 mode frequencies. But the IC-7300 reduces the bandwidth to 1200 Hz, which doesn't even cover the JT65 spectrum.
  • The IC-7300 has limitations on the source of Tx audio.  The source is selectable in digital mode or in non-digital mode.  WSJT-X wants the source set to USB to use the internal sound interface.  This means that to switch operation between microphone SSB and WSJT-X, the operator has to use menu screens to switch the Tx source between the microphone and internal USB sound card.