[time-nuts] 1900kHz radiolcation testing on east coast US?
tshoppa at gmail.com
Mon Dec 8 09:30:09 EST 2014
80*24 = 1920. 80th harmonic seems quite a stretch unless there is some
malfunction (as you point out maybe an interaction with 60Hz heating...
hmm... maybe they thought they could use PWM on the heating circuit.). For
sure they have enough power and enough wire in the air to do the damage
Do you know what the "normal" 24kHz waveform looks like? (FSK, MSK?)
Some of the locals think it is iceland and that is pretty much the same
beam heading as Cutler Maine. OK "beam" is a little optimistic,but we do
have directional antennas for 160M and we do know which way is NE :-)
On Mon, Dec 8, 2014 at 9:15 AM, Brian Inglis <
Brian.Inglis at systematicsw.ab.ca> wrote:
> On 2014-12-07 16:28, Tim Shoppa 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
>> power range.
>> Sound sample (recorded with 2400Hz receiver bandwidth, although the whole
>> signal is far far wider bandwidth) at
>> 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
> Could it be an artifact of interference with NAA 1-1.8MW at 24kHz
> which also uses ~3MW at 60Hz for deicing on the inactive array,
> as it is now below freezing and fairly humid in coastal Maine
> Take care. Thanks, Brian Inglis
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