[WT-support] Gray line and sunrise/sunset calculations in Win-Test

[José Nunes CT1BOH]

Hi Bob

It was last year, during a visit to Paris, overlooking the Eifel Tower in a
nice penthouse hotel bar, that I asked Laurent to develop the enhanced F10
window with Day/night/sunrise/sunset/midday/midnight/twilight information
for both ends of a QSO.

In my original request drawing for the window
http://docs.google.com/present/view?id=0AeI2eiAw5l2LZGhyYzZmc2ZfOWY5OGhqcmR3&hl=en
you
can check that I asked for +/- 1 hour around sunrise/sunset.

+/- 1 hour around sunrise/sunset is better to alert the operator of special
things that happen on the bands around sunrise/sunset. Gray line is for more
specific openings, just after sunset and just after sunrise - my personal
experience, operating around the world from very different locations.

Laurent tried several combinations, for example
http://docs.google.com/Doc?docid=0AeI2eiAw5l2LZGhyYzZmc2ZfNDNkcjh6ampkeg&hl=en

but in the end the shades around SS/SR and the time on top  of SS/SR were
removed.

I guess we were stuck with two objects, the line of SS/SR and the shades.
This is solved by your proposal of not two objects but just one, an area,
around SS/SR. It looks better.

When it comes to colours, day/night I prefer yellow/black than your proposal
of ligth blue or dark blue.


73
José
CR3E / CT1BOH



On Wed, Oct 7, 2009 at 3:14 AM, Bob Wilson, N6TV <n6tv at arrl.net> wrote:

> At present, Win-Test's World Map<http://docs.win-test.com/wiki/Menu:Windows#World_Map>and Check
> Multipliers window<http://docs.win-test.com/wiki/Menu:Windows#Check_Multipliers>seem to plot local sunrise and sunset times at sea level, but ionospheric
> twilight is defined by the sunrise and sunset times *in the D and F layers
> *, which is quite different.
>
> OH6BG publishes detailed D and F layer sunrise and sunset times in detailed
> tables, here <http://lipas.uwasa.fi/~jpe/tlite.shtml>.
>
> As you can see, the most likely time for gray line propagation is from 60
> to 30 minutes *before* local sunrise, and from 30 and 60 minutes *after*local sunset (approximately).  It would be nice if Win-Test could help you
> see this.
>
> FYI, Geoclock plots the D and F layer twilight area quite nicely, as shown
> here <http://home.att.net/~geoclock/ham.htm>.
>
> It would be nice if Win-Test could display D and F layer illumination in
> both the world map and the check multiplier windows.
>
> I also propose a more muted color scheme than the bright yellow bars that
> we have at the bottom of the Check Multipliers window today, with gray bars
> to indicate gray line propagation time (and also a way to disable the extra
> bars completely so the window looks the same as it did in Win-Test V3):
>
> [image: CheckMultipliersWithDandFGraylinePlot.PNG]
>
> A copy of this illustration is posted online here<http://www.kkn.net/~n6tv/CheckMultipliersWithDandFGraylinePlot.PNG>in case it is stripped by the reflector.
>
> 73,
> Bob, N6TV
>
> _______________________________________________
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> Support at win-test.com
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>
>


-- 
-- 
José Nunes
CONTEST CT1BOH - http://www.qsl.net/ct1boh
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