Agree with your thoughts on the AM's. Though as I suggested in a thread on other topics sometimes there depth of modulation could be an issue. By using the higher frequency and the TV tower you could control the carrier completely. Its a small antenna and reasonable power. More importantly low jitter. That somehow might be important here. ;-) Regards Paul.
On Fri, Oct 28, 2011 at 11:20 PM, Thomas A Frank <[email protected]> wrote: > Perhaps take advantage of one of the numerous AM radio stations in the > midwest that happen to be about half way between? > > After some initial calibration that should be repeatable. > > Tom Frank > > > On Oct 24, 2011, at 2:12 PM, paul swed wrote: > > > Boy I have to say that I agree with Bob. Nice and simple, but a boring > drive > > and heavens who has budgets for the tickets? > > Looked at a map and though I could see either a dark fiber type > connection > > $$$$$, or radio at 400 miles. Transmitter reference at 200 miles could > give > > a common view. They grow really tall TV towers in the midwest. Certainly > 50 > > MHz and reasonable power would be stable. I wonder about jitter in the > > various technologies of the radio recvr. But with a CS/Rb ref. the system > > could be quite good. Way back when ran a repeater at 145 Mhz for data > with > > directive antennas in Michigan. Ant at 60'. Very stable coverage at 140 > > Miles. > > Regards > > Paul > > WB8TSL > > > > On Mon, Oct 24, 2011 at 1:22 PM, mike cook <[email protected]> wrote: > > > >> Le 24/10/2011 19:03, Bob Camp a écrit : > >> > >> Hi > >>> > >>> The "quick and dirty" way to improve the timing is pretty old school. > >>> > >>> Toss a modern Cesium clock in the back of a car along with a bunch of > >>> batteries. Drive it back and forth between Batavia and Soudan. If you > >>> drive > >>> fast, that should be about an 8 hour trip. A good Cesium should hold 5 > to > >>> 10X better than the GPS is now doing. > >>> > >>> Better to take three. > >> > >> > >> ______________________________**_________________ > >> time-nuts mailing list -- [email protected] > >> To unsubscribe, go to https://www.febo.com/cgi-bin/** > >> mailman/listinfo/time-nuts< > 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. > > > _______________________________________________ > 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.
