Field Day really brings out the problems. I have 2 FT-847's. One belongs to the Club which I cloned to be the same as mine. For the ISS V/v frequencies, both do the same thing. Main vfo shows 145.850, sub vfo shows 144.490. Press the PTT and the sub vfo shows error on both rigs. All the other sat pairs are fine. So this problem in on my list of troubleshooting jobs.? 73 de VE3XC