This is both interesting and fun to play with. I abandoned it (years ago) because using L1 only introduced errors that I couldn't quantify (especially iono), and the control wasn't good enough to prove where the errors lay (pre-HARN days). Given the proliferation of CORS sites and active control stations, it may well be that these errors can be properly proportioned, thereby mitigating them effectively.

Please keep experimenting and posting!

Regards,
Brian

Brian,

You can count on "Stumpwater R&D" to continue. Just glad you guys aren't tired of this discussion.

It just dawned on me a couple of months ago the L1 must have been considered somewhat "obselete" with the advent of the CORS network and proliferation of dual frequency equipment. I was hoping that wasn't the case, and still have a burning desire to prove that there is still some possibility of using this L1/multi-CORS (aka O.R.G.I.) system for some positioning applications.

J.D.