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.
http://www.kkn.net/n6tr/sounds/echo.wav
It appears this was from 1997 - I posted about it here:
http://lists.contesting.com/archives//html/Topband/1997-02/msg00136.html
I remember hearing similar echos on my 75 meter signal during a California
QSO Party when I was operating at K6NA's QTH back in 1987 or 1988.
Tree N6TR
On Sun, Feb 5, 2017 at 6:45 AM, Arthur Delibert <radio75a3@msn.com> wrote:
> Approximately how much delay was there between your transmission and the
> echo?
>
>
> --Art Delibert, KB3FJO
>
>
> ________________________________
> From: Topband <topband-bounces@contesting.com> on behalf of on7eh <
> on7eh@skynet.be>
> Sent: Sunday, February 5, 2017 4:32 AM
> To: topband@contesting.com
> Subject: Topband: Echo on 160m yesterday morning
>
> 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 before surise)
>
> The echoes were loudest on the short Beverages (<60m long) heading N/S and
> NE/SW and several dB lower on the NW/SE Beverage. (about 130m long).
> The Tx setup is modest with Elecraft K3/100 and inv L at 15m height,
> sloping down to 11m.
>
> Only DX heard that morning was USA (typical condictions) so I wonder what
> else does hearing echoes indicate?
>
>
> 73,
> Michel, ON7EH
>
>
>
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