For the past several years I have received many requests to put V4 on the RTTY/Digtal map. My question is what would be the easiest and simplest way to get on, for a "NON Digital kind of guy". The radio is a TS590S, SB200, and Dell laptop.
You're in luck... the TS-590 is slick and easy to set up for RTTY and digital modes. There's no need to buy a USB Signalink -- the TS-590 has a built-in soundcard. You don't need audio cables. All you need to do is to run one USB cable from your laptop to the USB port on the back of the rig, configure the software, done!
It's just a matter of making sure the Kenwood drivers are on your laptop. After installing a digital program, such as FLDIGI, configure the program to use the rig's USB codec for the 'microphone' and the codec for the 'speaker' under FLDIGI's Soundcard setup. Rather than use PTT, which can be troublesome to configure, I find using the TS-590's USB VOX to work FB. Then it's just a matter of setting the proper audio levels in Windows for both receive and transmit.
73 Jim K6OK