I am trying to setup up VarAC with a IC-7300, and the Freq busy light is on all the time, and if I try CQ or anything else, it says waiting for freq to clear. I would appreciate some help. Thanks in advance.
I'm not sure how you ended up with that receiver noise UN-centered. Make sure you have your "twin Bandpass Filter" turned off, and have a 600 Hz filter set in the 7300. You can do this using one of the filter settings in the VarAC_cat_commands file that runs when you first start the program.
What filter width are you using? Here's what VARA-HF should look like with the filter at 600 Hz. 73, Joe