> I don't have the documents to had; but isn't that the modulation for > the 10 GHz backbone link?
You could very well be right, although as a 10GHz op myself I'd be surprised as it's quite easy to have unclean oscillators at that frequency that could contain enough phase noise as to make the QPSK "interesting". Interesting here being the same as the quality of the GMSK of an IC-91, the 92 is far far better in that respect. > Regards - Iain Jonathan G4KLX
