Re: Topband: Echo on 160m yesterday morning

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 closer ionosphere. I heard a double echo on 75m last year. I heard his direct signal which was

Re: Topband: Echo on 160m yesterday morning

, Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Tim Shoppa Sent: Sunday, February 05, 2017 4:44 PM To: on7eh <on...@skynet.be> Cc: topBand List <topband@contesting.com> Subject: Re: Topband: Echo on 160m yesterday morning I have heard echoes of m

Re: Topband: Echo on 160m yesterday morning

<on...@skynet.be> Cc: topBand List <topband@contesting.com> Subject: Re: Topband: Echo on 160m yesterday morning 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 ot

Re: Topband: Echo on 160m yesterday morning

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 all these events. I have noticed that there appears to be a link between the start of

Re: Topband: Echo on 160m yesterday morning

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 happening in multiple places around the world at the same time on this occasion then I think

Re: Topband: Echo on 160m yesterday morning

uled out the TRX given the infrequent echoes and the noted difference in signal strength on the Beverages... Michel, ON7EH -Original Message- From: Arthur Delibert Sent: Sunday, February 5, 2017 3:45 PM To: on7eh ; topband@contesting.com Subject: Re: Topband: Echo on 160m yesterday mornin

Re: Topband: Echo on 160m yesterday morning

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 few hundred miles, especially ones to my north. For the 160M echoes, some stations in W1 were

Re: Topband: Echo on 160m yesterday morning

and the noted difference in signal strength on the Beverages... Michel, ON7EH -Original Message- From: Arthur Delibert Sent: Sunday, February 5, 2017 3:45 PM To: on7eh ; topband@contesting.com Subject: Re: Topband: Echo on 160m yesterday morning Approximately how much delay

Re: Topband: Echo on 160m yesterday morning

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 anything is possible. But the idea of a multiple moderate angle skip with so many hops around

Re: Topband: Echo on 160m yesterday morning

Your transceiver switching may not have been fast enough to catch the echo the first time around. On Sun, 5 Feb 2017 11:21:51 -0800, Tree wrote: Yup - pretty crazy. Or space aliens were messing with me. On Sun, Feb 5, 2017 at 9:51 AM, k1fz

Re: Topband: Echo on 160m yesterday morning

I am wondering if there is a backscatter type condition that can also slow down the Vp. Art NK8X ᐧ On Sun, Feb 5, 2017 at 12:18 PM, Tree wrote: > I once had a very strong echo on 160. > > The delay was about 225 milliseconds - which equates to a distance of about > 42K miles. > >

Re: Topband: Echo on 160m yesterday morning

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 really the echo. I send two dits and hear two dits come back.

Re: Topband: Echo on 160m yesterday morning

Approximately how much delay was there between your transmission and the echo? --Art Delibert, KB3FJO From: Topband on behalf of on7eh Sent: Sunday, February 5, 2017 4:32 AM To: topband@contesting.com Subject:

Re: Topband: Echo on 160m yesterday morning

I noticed a few weak echoes this morning around 0400. I thought it was someone playing around. Art NK8X ᐧ On Sun, Feb 5, 2017 at 4:32 AM, on7eh wrote: > For the first time, > I heard my echoes on topband, yesterday morning starting around 05 UTC. > They lasted for at least 1