What is your client?
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Looking at the BPQ Node map it appears that you have your NODECALL set to both K4SPB and K4SPB-7 at one time. But I see you are offline at the moment.
Your config does not assign K4SPB to any application in the config so do you have an external client making that connection?
Just rememember that any call used in the node cannot be used on RF on the same frequency or you will experience the same behavior.
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So when you restart be sure K4SPB is not used in the node anywhere so that it can be used by an outside client program.
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So what is your client?
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