Oleg, With the K2, you should have zero ALC bars illuminated - reduce your audio input level until the ALC bar does not illuminate. Are you using SSB mode? If so, have you set the menu SSBC parameter to1:1? You can set up the RTTY filter set (turn RTTY=ON in the secondary menu), and you will have a dedicated mode for soundcard data modes. The advantage is that the compression setting is independent of that used for SSB.
73, Don W3FPR dl0tuh wrote: > Hi, > > I gave a test to my PSK31 setup today - barefoot K2 #5932 with M-Audio sound > card in my desktop pc. My laptop pc was connected to a FT-840 and listening. > Both used old good DigiPan. > > I let my laptop measure IMD and also asked for this value during QSOs. In > all cases it's about -16dB which is very poor I beleive. > > The power level is set to 5W. PC sound output level was decreased so that > only the first ALC bar blinks. > > I also tried power levels setpoint from 0.1W to 15W. IMD value changed > continuosly from -19dB to -12dB. > > Anything I could try/check to figure out the reason of destortion? > > vy 73 de DL2IPU Oleg > > ------------------------------------------------------------------------ > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.409 / Virus Database: 270.13.82/2351 - Release Date: 09/07/09 > 06:40:00 > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
