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