Is it just me, or does anyone else find a virtually 24/7 repetitive
pinging tone spread entirely over the 100 kHz from 13500 to 13610 kHz?

On Thu, 22 Feb 2007 03:09:28 GMT, Larry Dighera
wrote:
Is it just me, or does anyone else find a virtually 24/7 repetitive
pinging tone spread entirely over the 100 kHz from 13500 to 13610 kHz?

I'm not hearing it at 11 PM local time in central Pennsylvania.

On the other hand, I've been having something trashing the lower half
of the longwave band lately. It turns on and off cleanly at intervals
I haven't had time to determine yet. It's probably local, but I have
no idea what it is. It just started a week ago or so.

On Wed, 21 Feb 2007 23:25:31 -0500, Jim Shaffer
wrote in :

On Thu, 22 Feb 2007 03:09:28 GMT, Larry Dighera
wrote:
Is it just me, or does anyone else find a virtually 24/7 repetitive
pinging tone spread entirely over the 100 kHz from 13500 to 13610 kHz?

I'm not hearing it at 11 PM local time in central Pennsylvania.

It's not being generated in the receiver, as it is received in other
radios also. It's probably a local transmitter, but I'm surprised by
wide the bandwidth it occupies.

On the other hand, I've been having something trashing the lower half
of the longwave band lately. It turns on and off cleanly at intervals
I haven't had time to determine yet. It's probably local, but I have
no idea what it is. It just started a week ago or so.


I haven't heard that, but there is a tone that descends in audio
frequency steps that can be heard faintly under nearly all the
stations on entire SW frequency band. I need to check and see if that
is audible on another receiver to determine if that signal is external
or internal.

In article ,
Larry Dighera wrote:

Is it just me, or does anyone else find a virtually 24/7 repetitive
pinging tone spread entirely over the 100 kHz from 13500 to 13610 kHz?

Same stuff on 12100 kHz.

I assume it's CODAR. An over the horizon wave height measureing
(or something like that) HF radar,

Mark Zenier
Googleproofaddress(account:mzenier provider:eskimo domain:com)

On Thu, 22 Feb 2007 17:18:47 GMT, (Mark Zenier)
wrote in :

In article ,
Larry Dighera wrote:

Is it just me, or does anyone else find a virtually 24/7 repetitive
pinging tone spread entirely over the 100 kHz from 13500 to 13610 kHz?

Same stuff on 12100 kHz.

I assume it's CODAR. An over the horizon wave height measureing
(or something like that) HF radar,

Mark Zenier
Googleproofaddress(account:mzenier provider:eskimo domain:com)



Many thanks for clearing this up.

Here's the web site: http://www.codaros.com/

There are currently 72 SeaSondes.

So if each transmitter occupies 100 kHz, that's 7200 kHz of HF
bandwidth consumed by a single company, and there's 4100 kHz more
coming on line for a total of 11.3 mHz! Or have I misplaced a decimal
point someplace?


More to follow:
http://www.codaros.com/news_01_1_2006.htm

9 January 2006

California purchases 41 SeaSonde units for new program.

California has started building the infrastructure for the new $21M
Coastal Ocean Currents Monitoring Program (COCMP), designed for aiding
critical operational and research endeavors. A key component of this
program will be the continuous surface current outputs from an
extensive SeaSonde® network. The acquisition of 41 new SeaSonde and
Long-Range SeaSonde units being installed as part of this program will
bring the total number of units operated in the state to 57.

This new network will provide continuous coverage of the ocean surface
currents along the entire 1100 miles of California's coast out to
approximately 120 miles offshore. Highest resolution coverage will be
set at the most critical areas, such as inside of San Francisco Bay.
Once completed, the state will boast having the world's most advanced
ocean current monitoring system.

This project made front page news on 8 January 2006 in Silicon
Valley's largest newspaper, the San Jose Mercury News. To view the
complete article published in the Mercury, click here for the PDF
(approx 70K): 2006_MercuryNews.pdf

In addition, the COCMP program has a very comprehensive website,
including more technical details on the program, participant
information, downloadable press releases and presentations, as well as
links to other related web sites. A statement of support from Governor
Arnold Schwarzenegger is highlighted on their home page. See
www.cocmp.org.

For further information, contact Laura Pederson of CODAR Ocean
Sensors, at or phone (408) 773-8240 x15.
-------------------------------------------------

You can see the results of this radar he
http://www.cencoos.org/hfrnet/