For the first time, I heard my echoes on topband, yesterday morning starting around 05 UTC. They lasted for at least 1 hour, with some OFF-periods in between. I had to quit at 06 UTC. (still 1 hour b
I noticed a few weak echoes this morning around 0400. I thought it was someone playing around. Art NK8X _________________ Topband Reflector Archives - http://www.contesting.com/_topband
Approximately how much delay was there between your transmission and the echo? --Art Delibert, KB3FJO For the first time, I heard my echoes on topband, yesterday morning starting around 05 UTC. They
I once had a very strong echo on 160. The delay was about 225 milliseconds - which equates to a distance of about 42K miles. You can listen to it here. It is so strong that you won't believe that is
I am wondering if there is a backscatter type condition that can also slow down the Vp. Art NK8X _________________ Topband Reflector Archives - http://www.contesting.com/_topband
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Sun, 5 Feb 2017 15:33:27 -0400
Having worked LU and CX on 2 meters SSB (100 watts 7 element beam) without any ionospheric skip in the strange ducting FAI mode that is at time formed by the magnetic field at the equator, i say that
Art and all, unfortunately, I do not have a PC in the shack outside contest days, otherwise an answer could easily be provided. For sure, its presence was annoying, not hearing the expected noise in
I have heard echoes of my own signal under some circumstances too. More often on 80M but a couple times on 160M. Often in the hour before dawn. These echoes were also heard on other stations within a
Thanks. Sounds from your description that the interval was very short, so it was not what has been called a "long-delayed" echo. Art and all, unfortunately, I do not have a PC in the shack outside co
I think this form of ducting takes place way above the layers of the atmosphere where weather happens. In my experience the magnetospheric ducting is normally localized in impact. If this was really
Andy, There was a passenger on an airliner that took photographs of a very large Aurora at that time. . One of the photographs was shown on TV - ABC World News. It is likely that the Aurora sparked a
Nowadays we have a huge amount of RF repeaters in use for several services, like , Wi-Fi , LTE4, Data links. Microwave links, FM stations link, TV video links. All these systems has a receiver and a
I experienced long delayed CW echos once on 20m, back in the 1980s before there was much wireless stuff. Also, I lived in the country with no close neighbors. The delay was significant because I was
This is interesting. I recall a discussion here about very long LDEs awhile back. IIRC, it was suggested that perhaps the magnetosphere and the Van Allen belts might be involved, rather than the much