When operating QSK at 15-20 wpm, I am running into echoes of my transmissions. These occur on certain azimuth bearings at certain times of day, most often to the SE, which is over water until hitting
Martin Echoes are fairly common. I ran into them on 17cw last week. When I finished a word etc I still heard about a dash worth of myself. It was a little disconcerting. Bob W2WG When operating QSK a
It is common indeed. An HF over-the-horizon (OTH) radar guy would call it "backscatter" and that is exactly what the Russian (or I should say Soviet, I guess) "woodpecker" HF signals of the 70s and 8
transmissions. These occur on certain azimuth bearings at certain times of day, most often to the SE, which is over water until hitting S. Africa or Antarctica from here. I've seen this from 20 M to
Joel - I usually think of "scattering" as an incoherent process arising from many small scattering centers (density fluctuations). When you hear a clear echo, the response is fairly coherent (with a
I've seen the "long delayed echoes" people report, and they almost caused me to run away from the rig in fear ! :) But I've not seen "short delayed echoes" of the sort you report here. 73 de Gary, AA
<< When operating QSK at 15-20 wpm, I am running into echoes of my transmissions. These occur on certain azimuth bearings at certain times of day, most often to the SE, which is over water until hitt
QSK is very helpful, because you hear the echo after every dit or dah. (It's pretty distracting to hear echoes while sending.) I never heard it with my old non-QSK rig with a slow R/T relay. I don't
When the Soviets were running OTHR in the amateur bands, (which used the HF echo to "see" targets) I used QSK CW dits to synchronize with their OTHR pulse timing and jam their "B" scopes. As a former
I guess we should all be thankful that they didn't confuse your Omni D for a swarm of U.S. ICBMs coming over the horizon... ;-) _______________________________________________ TenTec mailing list Ten
The Woodpecker, by golly it's been awhile.... gary.huber@us.army.mil<mailto:gary.huber@us.army.mil> wm@fifthinfantrydivision.com<mailto:wm@fifthinfantrydivision.com> www.societyofthefifthdivision.com
Its nice to meet another Old Crow, on the reflector. I did 8 years in the U.S.A.F. in ECM repair, everything from B-52's to F100s, F4c, weasels, and the odd stuff we still can't talk about.. ECM , wh
The Soviets were not the only ones using OTHR that utilized HF (some in ham bands). GE did testing that encroached on the ham bands (at times). I am saying that as I saw documentation that indicated
Is the association of old crows still around ? _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
Author: Robert & Linda McGraw K4TAX <RMcGraw@Blomand.Net>
Date: Tue, 03 Jan 2006 21:56:24 -0600
I worked for GE and worked on the GE system that did this. That's all I can or will say about it. 73 Bob, K4TAX _______________________________________________ TenTec mailing list TenTec@contesting.c
Not very likely the Soviet Radar operators were confused.... most if not all were pretty good CW operators and they certainly understood HI HI 73 DSW DE AB9M when they went QRT with their WOODPECKER
Hi Tom, I'm not an "Old Crow".... or at least I don't think so. My ECM - ECCM operator status was with US ARMY Nike Hercules RADAR operations. I also was a RADAR Tracking Supervisor and HiPAR (High P
Hi Bob, Most of the classified RADAR technology of the era has become obsolete and downgraded. For the most part all the old analog designs are pretty much generally available to the public or can be
I found many places on a google search and this one has some links's.. looks like us card carrying members are still here.... _http://oldcrows.ras.com/_ (http://oldcrows.ras.com/) 73 and gud DX tokm
well it's still nice to hear from some one "in the business" and its where I learned what little I remember of electronics.. keesler afb 1966.. 73 and Gud DX my friend.. tom N6AJR ___________________