Hello Karel and all, I hope I am able to get the first qso using psk125 tonight, thats in my "lab" using pure audio. As soon as I get that working I will release new cd's. Dave, the author of fldigi, has been very helpful and has sent several alpha releases in response to my test results. I am confident it should be up and running tonight. Ok on those attachments. You may need more than psk125 then and DRM is certainly an option to consider. I have also tested RFSM2400 which is a soundcard implementation of MIL-STD 188-110A, it runs at 2000 bps using ham rigs and 2400 bps using the standard mode. I asked the author, Dmitry P, if he might consider implementing "our" IPC mechanism (as in gmfsk) and his response was: "I already planned use IPC like yours. It just in work (option "AutoTransieve", disabled now)." He just released a new version but had that option still disabled. I would like to test drm as well so I will download that and see what it can do. Guess I will have to test windrm as I know of no "ham" version of the drm algorithm (the one at sourceforge is for reception only). 73 de Per, sm0rwo