Radiolocation may be a bit misleading.
Some first thought that this was CODAR but it is not, at least not what
I am familiar with but it may be another variation of an ocean surface
wave RADAR type of system but it is certainly not like one I have heard
before.
cheers, Graham ve3gtc
On 2014-12-07 20:03, paul swed wrote:
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
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