[time-nuts] 1900kHz radiolcation testing on east coast US?

Bob Camp kb8tq at n1k.org
Sun Dec 7 19:09:31 EST 2014


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 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
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