12:13 is 10 over 9 here on the NE Bev. And 000 on the NW Bev Will K6ND
-----Original Message----- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Doug Grant Sent: Tuesday, December 9, 2014 6:38 AM To: Rich C Cc: Ray Benny; topband@contesting.com Subject: Re: Topband: Unknown Pulse Signal Wiping out 1900-1925 kHz 1136z and it is 40 over 9 here in southern Maine. It is not far away from here. On Tue, Dec 9, 2014 at 4:41 AM, Rich C <rich_k...@gphilltop.com> wrote: > I just did a check with the HI Z 4-8 and it is DUE EAST of here at > S8-9 here in Grants Pass Oregon. It drops off each side of due east > when I switch it. > > Rich K7ZV > > On Mon, December 8, 2014 10:00 pm, Doug Grant wrote: >> 0350z it is back and loud again (40dB over s9) and has QSB. >> >> >> This site shows how Codar systems work >> http://www.ims.uaf.edu/hfradar/how_it_works/ >> >> >> the sound clip on that page has audio that is higher-pitched than the >> one on 1915 but similar in structure. >> >> 73, >> >> >> Doug K1DG >> >> >> On Tue, Dec 9, 2014 at 3:44 AM, Ray Benny <rayn...@cableone.net> wrote: >> >>> Guys, >>> >>> >>> I am hearing something between 1910 and 1925. Its a rapid, raspy, >>> pulse tone, but its coming from the SE in Central AZ (SA >>> direction). It is just above my noise level, currently S4, so not >>> strong. Do not hear it on my TX vertical. Don't know if this could >>> be the noise reported or some local garbage in my area. >>> >>> Using a HI-Z RX 4 SQ. >>> >>> >>> Ray, >>> N6VR >>> >>> >>> On Mon, Dec 8, 2014 at 7:13 PM, Doug Grant <dougk...@gmail.com> wrote: >>> >>>> >>>>> From: k...@myfairpoint.net >>>>> >>>> >>>>> Monday? 9;45 AM >>>>> Unable to hear the 1900-1925 Khz. interfering signal this morning. >>>>> Propagation change, or is the signal gone ? >>>>> Anyone still hear it? >>>>> >>>> >>>> I checked a few times during the day on Monday and did not hear it. >>>> >>>> >>>> At 0200z I checked again and it was there and very loud...40dB over >>>> s9. Definitely louder on my NE antenna, but only by 10 dB or so. >>>> Maybe it is close enough that it is arriving at a high angle. But >>>> 30 seconds after I tuned in, it stopped! >>>> >>>> The signal characteristics are almost identical to CODAR >>>> sea-surface radar. There are three of those installations in Maine >>>> and VE1 that are easy to hear on 4.8 MHz. Maybe they are trying >>>> smoethign new there. Or maybe is it in TF or even shipboard >>>> somewhere off Newfoundland...the CODAR system uses fairly small >>>> antennas and low power, so it is possible. >>>> >>>> I placed a phone call over the weekend to the Operations Manager >>>> for one of the projects using those sites and left a message asking >>>> if they had something running at 1.9 MHz, but no answer yet. >>>> >>>> 73, >>>> >>>> >>>> Doug K1DG >>>> Long Island, ME FN43 >>>> _________________ >>>> Topband Reflector Archives - http://www.contesting.com/_topband >>>> >>> >>> >> _________________ >> Topband Reflector Archives - http://www.contesting.com/_topband >> >> > > _________________ Topband Reflector Archives - http://www.contesting.com/_topband _________________ Topband Reflector Archives - http://www.contesting.com/_topband