HF Digital modes, especially PSK31, have grown exceptionally popular. You can find a conversation nearly any day you like and it doesn't take much to get involved. Clint Hurd, KK7UQ has worked with us to show off the potential of the SG-2020 for HF Digital communications. We've demonstrated this at several hamfests and in other presentations. Take a look at the demonstration station:

From left to right on the table are:

• Toshiba laptop computer
• KK7UQ build-it-yourself Sound Card Interface
• PS10 12VDC power supply
• SG-2020 ADSP Transceiver
• SG-237 & SG-239 Couplers (SG-239 currently connected)
• Wire going to an outside antenna

For those of you who already have an SG-2020 and would like to get into HF Digital communications, you might be interested in some additional reading:

- The New London Lighthouse Special Event Station
- Get Your Feet Wet on PSK31 with the SG-2020(pdf)
- Using the SG-2020 DSP with Sound Card Modes(pdf)

One of the more impressive demonstrations you can do with the SG-2020 ADSP or ADSP2 is to use the instructions from the Get Your Feet Wet document to hookup the SG-2020 to a computer display and then watch the display while you click in the different ADSP modes or the different filters. It is a VERY impressive display!