The IC-7300 only has one antenna jack. What are you talking about???
Would someone please explain to me what the original poster is talking about? My IC-7300 does not have 3 antenna ports, nor does the factory manual show three ports. What am I missing?
This is what happens when the FCC lowered the bar for the exams!!!
May have figured out the Original Poster's problem. I suspect he confused an IC-7300 with an IC-9700. If he bothers to come back and confirm that, maybe someone can continue to assist him with the original problem.K7AAT