[time-nuts] 1900kHz radiolcation testing on east coast US?
paulswedb at gmail.com
Sun Dec 7 20:03:33 EST 2014
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.
On Sun, Dec 7, 2014 at 7:09 PM, Bob Camp <kb8tq at n1k.org> wrote:
> 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 …..
> > On Dec 7, 2014, at 6:28 PM, Tim Shoppa <tshoppa at 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
> > 1900-1920kHz, with a 120Hz substructure and a 4Hz rep-rate, likely
> > 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
> > zoomed in at http://www.trailing-edge.com/1910-intruder-2.png
> > Tim N3QE
> > _______________________________________________
> > time-nuts mailing list -- time-nuts at febo.com
> > To unsubscribe, go to
> > and follow the instructions there.
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to
> and follow the instructions there.
More information about the time-nuts