FT8 quit making contacts. It decodes fine, but when I attempt to make a contact I get no answer. I got an email from some one that said my signal didn't sound right. I monitored my signal while attempting to make another contact and it sounds like a FT4 signal. I have been making a lot of contacts on FT4 with no problems. The FT8 audio sounds like it has a slight warble to it. I did switch modes before I tried FT8. 73, NC4MI