Topband: greyline prop forecast

[N5KM - Kris]

Hi Carl,

Well, I guess I was cheating a bit by posting here. I was hoping the folks
who
dwell here might be more knowledgeable about propagation than other forums.
(You prove my case. Hi.)

I've been concentrating on the lowbands (160m and 80m) so my question really
was concerning 80m greyline propagation. I acknowledge the vagaries of  160m
propagation, as you have described. I was just curious if greyline
propagation
can be predicted the way SP/LP can be.

73,

Kris N5KM


Date: Thu, 16 Feb 2017 11:15:12 -0500
> From: Carl Luetzelschwab <carlluetzelschwab at gmail.com>
> To: topband at contesting.com
> Subject: Topband: greyline prop forecast
> Message-ID:
>         <CAAx1FFHzM7UFi5kHSvNZR7PaXRm=k=mKyFK9PmTa0Abxu5c2uA at mail.
> gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> Kris N5KM asked about greyline propagation predictions. Since his question
> was posted to the topband reflector, I assume he's only asking in relation
> to 160-Meters.
>
> We do not have any reliable propagation predictions for greyline on 160m.
> In fact, we really don't have any reliable propagation predictions for any
> time on 160m. In other words, we do not know in advance what night is going
> to be good and what night is not going to be good.
>
> The best thing to do is know the common darkness times between you and your
> target, and know sunrise and sunset times at both ends of the path. Make
> sure you're on when it's dark and make sure you're on around the
> appropriate sunrise/sunset times.
>
> I agree that it would be nice to know when 160m is good, but we're simply
> not there yet. My guess is we will not even see this in our lifetimes as
> there is no continual data being taken in the lower ionosphere to gives us
> clues as to what's going on.
>
> So get on and enjoy the magic of topband when it happens.
>
> Carl K9LA