Hyperbolic, not parabolic. -John
======== > Someone may correct me on this. > > But isn't Loran a parabolic navigation system? So, the further away > from the chain of transmitters you are, the positioning "quality" (for > want of a better word) will deteriorate. I seem to remember reading > that you need a good spread of directions for the incoming signals, so > you get a decent fix, much like clasic direction finding and reducing > the area of uncertanty. Too far away, and all the bearings (timings in > this case) tend to one direction. > > Any Sky Wave propagation would also mess with the timings, multi hop and > all that. > > As above, I stand to be corrected on this. I may be thinking of another > system of course. > > Regards. > > Dave G0WBX. > > >> -----Original Message----- >> Date: Tue, 10 Nov 2009 22:44:27 -0500 >> From: paul swed <[email protected]> >> Subject: Re: [time-nuts] Loran C shutdown >> To: Discussion of precise time and frequency measurement >> <[email protected]> >> Message-ID: >> <[email protected]> >> Content-Type: text/plain; charset=ISO-8859-1 >> >> Well that's what I am thinking about also. >> Earlier in this thread there was a mention of Europe. >> This would be a sky wave only signal as I recall from the navy. >> So I have g3plx LORAN software and will look to see what I >> might get here on the east coast. >> Suspect the Canadian chains will go very quickly since part >> of them uses the US chain. >> Or simpler then the g3plx software, just plugging in the GRI >> for the European chains. >> Have 3 austron receivers, the 2000c, 2100, and 2100f. >> >> >> On Tue, Nov 10, 2009 at 8:36 PM, Claude Houde <[email protected]> wrote: >> >> > Hello ! >> > >> > Before you throw away your Loran Receivers, have you >> checked what will >> > happen with the Canadian Transmitter Chains ? >> > >> > Would it be possible with better antennas to receive signals from >> > other countries ? >> > >> > Would be interested in hearing your input on these ideas ! >> > >> > Thanks ! >> > >> > Claude > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
