On Tue, Apr 26, 2016 at 1:20 PM, bob@n4rfc.com wrote:
However, I loaded a copy of the FTB60 program from G4HFQ, imported a CSV file from the 8900 and the FTB60 program wrote the FT-60 first try. So, I think the levels are probably good between the radio and the interface. I will look at them on the O-Scope just to make sure.
That is pretty definitive, and I don't know that the o-scope will tell you anything more at this point. It might be interesting to compare a serial data capture from Chirp and FTB60 to see if there is a significant difference that could explain the problem with Chirp. I don't know how to help you with the serial capture -- I have only used portmon on 32-bit Windows. I hear it's incompatible with 64-bit varieties.
Tom KD7LXL