With DAX running, my transmitted waveform looks a l ot cleaner than it did when running with the SignaLink. No offense to the Signalink - it's a pretty decent interface - but keeping everything at the digital level ROCKS.
In our testing last night between two 6700s, one in NC and the other in TX operating PSK-31 is very poor band condux, I was constantly seeing IMD of -31 dB @ 40W. The print of the signal on Fldig had incredible detail. Cleanest signal on my waterfall.