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Useful information about USB and Serial Ports and Sharing of them

Tom - N1MM
 

N6TV gave a presentation at the 2019 Dayton Contest University on this topic. An excerpt is below which may aid those who want to share serial port information between two applications. 

Radios with USB and DE-9 connectors 
  • Elecraft K3: USB and Serial Port (“P3/RS232”) do not operate independently (parallel TXD wiring)
  • Kenwood TS-590S and others: USB and Serial Port operate independently
  • ICOM USB and CI-V Ports (3.5mm, not DE-9) may operate independently (set USB CI-V Port to Unlink from [REMOTE])
  • Provides possibility for two programs to poll radio at same time via independent serial ports, one USB, one DE-9 or CI-V.

The full slide deck for this presentation is at: https://www.contestuniversity.com/wp-content/uploads/2019/05/4-N6TV_Dayton_2019_Everything_USB.pdf

73,
Tom - N1MM

Jack Brindle
 

If you’d like to see the presentation live and be able to ask questions, Bob will be giving the talk at the next NCCC meeting. This is a jointly-held meeting with the MLDXCC and will be held in Rio Vista, CA on Saturday, July 27. For more information, see: http://nccc.cc/meetings.html

73!
Jack, W6FB


On Jul 14, 2019, at 10:26 AM, Tom - N1MM <Tom@...> wrote:

N6TV gave a presentation at the 2019 Dayton Contest University on this topic. An excerpt is below which may aid those who want to share serial port information between two applications. 

Radios with USB and DE-9 connectors 
  • Elecraft K3: USB and Serial Port (“P3/RS232”) do not operate independently (parallel TXD wiring)
  • Kenwood TS-590S and others: USB and Serial Port operate independently
  • ICOM USB and CI-V Ports (3.5mm, not DE-9) may operate independently (set USB CI-V Port to Unlink from [REMOTE])
  • Provides possibility for two programs to poll radio at same time via independent serial ports, one USB, one DE-9 or CI-V.

The full slide deck for this presentation is at: https://www.contestuniversity.com/wp-content/uploads/2019/05/4-N6TV_Dayton_2019_Everything_USB.pdf

73,
Tom - N1MM