The goniometer that I remember was to allow a controlled phase change for measurments. It was inside the rcvr.
On Sat, Jan 8, 2011 at 10:28 AM, J. Forster <j...@quik.com> wrote: > > Loran c was complicated by the fact that there were phase reversals in > the > > patterns that had to be emulated it doubled the size of the code. But to > > answer your question John its all done in simple readable basic language. > > Think of it as a endless loop pattern. The real trick is using a good > > reference. I think Magnus said 10 KC. What you do is count the 10 KC > > reference. Using a Parallax SXB chip that can run all the way up to 80 > > Mhz. > > The code runs so fast that 99.9% of the time the micro is just waiting > and counting edges. > > OK. Thanks. You talk to the uP with a dumb terminal program? > > > I like to create dumb simple stupid, reliable as heck programs like that. > > The Loran C sim allows the Austrons to compare to their limit of 1 e -13. > > There is a bit more cleverness in the C simulator external to the > > program. > > > > I thought there were different frequencies at about 1.8 Mhz. > > There are 3 between 1.8 and 2.0 MHz, one higher that was mostly unused. > > > I remember the gone-ometer (I still think thats a disease sailors can > > get), green crt black box about 2 ft tall. > > That's for a DF loop, no? Was that used on the LORAN receiver? If so, > that's news to me. The crossed roughly 4' loops were common on ships, but > I didn't think they were LORAN antennas. > > > If you really wanted to do a location you might need 2 or 3 chips at > > different GRIs and phases. But at $3.56 not a really big deal. Lastly > > there > > must be some overall sync relationship between the chains that has to be > > maintained I might guess. > > I'm not sure about inter-chain sync, but IMO it does not matter much. > > > Oddly enough I emailed the group several times at the ship and never > > received a response. > > Figured they were all set. > > Regards > > Paul. > > If you're interested, I can make sure you talk to the right person. > > Best, > > -John > > =============== > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.