Not aware of any testing plus it makes no sense these days. LORAN long ago abandoned and was in that range and Loran C in the US dead. UrsaNav has been quite for quite a while. Regards Paul WB8TSL
On Sun, Dec 7, 2014 at 7:09 PM, Bob Camp <kb...@n1k.org> wrote: > Hi > > 120 Hz sub structure suggests a (much lower power) switching power supply > run amok. I certainly would not design a system that would have virtually > no immunity to power line noise ….. > > Bob > > > On Dec 7, 2014, at 6:28 PM, Tim Shoppa <tsho...@gmail.com> wrote: > > > > Would any time-nuts know of radiolocation-type testing going on, on east > > coast of US, maybe around Maine? There is a very strong wideband signal > on > > 1900-1920kHz, with a 120Hz substructure and a 4Hz rep-rate, likely > megawatt > > power range. > > > > Sound sample (recorded with 2400Hz receiver bandwidth, although the whole > > signal is far far wider bandwidth) at > > http://www.trailing-edge.com/1910-intruder.wav > > > > Pics of the waveform at http://www.trailing-edge.com/1910-intruder-1.png > and > > zoomed in at http://www.trailing-edge.com/1910-intruder-2.png > > > > Tim N3QE > > _______________________________________________ > > 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. > _______________________________________________ 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.
