More very useful progress, thanks. This is getting better much faster than my efforts to compile Empeg code.

Could you briefly sumarize the TSIP configuration best suited to interface with GPSapp? I can see that it polls for satellite data but there is a tremendous range of output data available using TSIP (and probably the Oncore and other binary protocols, as well) so it would be quite helpful to have a starting point for the config.

Thanks,

Lynn