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.
