Several months ago, before I had a Transceiver that worked, I configured FLDIGI to graphically display the letters QC 13P in the waterfall as a preamble to my PSK31 transmission. I remember I was looking into Reed Solomon identifiers or Hellschreiber or something else to tell hams what mode I was using. I would like to remove this from my PSK31 signal. The only problem is I forgot how I did it and I can't find where I configured FLDIGI to work like this. Is it time to reinstall FLDIGI? Will that configuration persist through the reinstall? How do I undo what I did?
I figured it out. In FLDIGI I had video IDS check marked under Configure/IDS/Video. Here is the link to a video on YouTube that clearly explains what I needed to know. https://youtu.be/nwkz0GNpA0I