[Elecraft] OT-P3 capture of a 17M intruder

[Bill Hammond]

Hi Ken,
I have sent the following to the contact listed for Intruder watch on ARRL's web site.  Thanks for the advise.
73,
Bill
AK5X

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Hi Chuck,
Attached is a link to a spectral display from my P3 band scope I made this morning around 1430Z.  I made the picture before the signal moved into our 17 meter band as explained in the caption and notation of the picture.  

http://www.flickr.com/photos/ak5x/8380898512/in/photostream

There is some speculation that this is a signal from these guys:

http://www.codar.com/index.htm

I have no way of knowing that, but the signal was indeed from the west coast according to my HF beam.  My reading of part 97.303 gives amateurs primary service of the 17 meter band.  It looks like a intrusion to me. 

Have you seen this before or do you know of CODAR?

73,
Bill
AK5X 








On Jan 14, 2013, at 11:41 AM, Ken G Kopp wrote:

> Google "Seasonde" for more information.
> 
> Rose and I have been lighthouse hosts for the Oregon State Parks
> Dept in the past.  Several of the parks on the beach have Seasonde
> equipment housed in the plumbing areas between the men's and
> women's bathrooms, and I have photos of these installations,
> including their licenses and antennas.  The ones in the Oregon
> State Parks are operated by the University of Oregon.  These ...
> and CODAR ... operations are confined to specific (narrow) bands.
> They do not operate in the amateur bands.
> 
> Ionospheric sounders, on the other hand, may appear anywhere
> in the HF spectrum.  Some sweep upward at a steady rate and
> others spray random bursts throughout the HF spectrum. There
> is one operating in Boulder, Colorado right in the city behind the
> NBS campus.  It's been there for decades.  Weber State (Utah)
> has one in continuous operation.  Sounders are everywhere, even
> in Antarctica.  PSK31 users often see them in their "waterfalls", but
> few recognize them for what they are.
> 
> 73!
> 
> Ken - K0PP
> 
> 
> On Mon, Jan 14, 2013 at 4:40 PM, Bill Hammond <wham727 at aol.com> wrote:
>> Hi Bill,
>> I think you may of hit the nail on the head with CODAR.  I had to Google it with the following results:
>> 
>> http://www.codar.com/intro_hf_radar.shtml
>> 
>> I guess it is for ocean wave detection (Tsunami)?  They have some radar locations in Southern California.
>> 

Bill Hammond
wham727 at aol.com
Bill Hammond-AK5X
ak5x at mac.com
ak5x at sbcglobal.net
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