Phil, To turn the K2 AGC off, press the PRE/ATT and AGC buttons at the same time. See the K2 manual (rev F) page 100. 73, Don W3FPR > -----Original Message----- > >Running PSK31 with AGC off is often a better way to operate. > > I've asked this before - how does one turn the AGC off in a > K2/100? > >