[Dxbase] Distance and bearing errors
Joe WA6AXE
wa6axe at hotmail.com
Tue Feb 1 15:37:38 EST 2011
Wes,
it really sounds like you are running Windows VISTA or Windows7 -- and the Refdata.mdb
file THAT DXbase2007 is using is in that VIRTUAL STORE area -- BUT, you are looking at
the Refdata.mdb file that is in your DXbase2007 directory???
The correct Refdata.mdb file entry for VP9 is:
VP9 Bermuda +32.3 +64.7
and
when I (running windows XP) I type-in VP9 in the summary window it ALSO shows
the LAT / LON of +32.3 +64.7
Pse tell us what OS you are running and did you (IF windows VISTA/ Windows7)
install it in the DEFAULT directory -- or did you make your OWN directly off of
C:\ drive root directory?
Joe WA6AXE
> Date: Tue, 1 Feb 2011 13:15:34 -0700
> From: n7ws at k6mhe.com
> To: lennoxj at bellsouth.net
> CC: dxbase at mailman.qth.net
> Subject: Re: [Dxbase] Distance and bearing errors
>
> I don't believe this is an updater problem.
>
> If I look at the prefix database using the DXBase database access tool, VP9
> shows lat = +32.3, long = +64.7. These are correct.
>
> I can uses MS Access to look at the same database and see the same numbers.
>
> Typing VP9 into the summary window will show lat = +32.3, long = -64.7, which I
> suppose accounts for west longitude in normal mapping convention. However, the
> heading shows 3.8 deg at a distance of 7954 km. The true heading is ~77 degrees
> at 4300 km.
>
> My lat is entered correctly as +32.31 and long +111.2.
>
> As I stated, other beam headings to different countries appear to be correct.
> Since both latitudes are nearly the same, I suspect at math error.
>
> Wes
>
> On 2/1/2011 8:49 AM, Jack wrote:
> > Wes,
> >
> > I made the recent prefix changes myself and did not use any updater program.
> > My summary window remains correct. So, maybe the entries in the updater
> > version of the prefixes was wrong, or maybe your user options are not right
> > for your own lat/lon settings. I seem to recall that an early version of the
> > updater utility had an error with the way it set the lat/lon information and
> > that there was an updated version to fix this. Not really sure.
> >
> > ----- Original Message ----- From: "Wes N7WS" <n7ws at k6mhe.com>
> > To: "'DXBase Reflector'" <dxbase at mailman.qth.net>
> > Sent: Tuesday, February 01, 2011 10:31 AM
> > Subject: [Dxbase] Distance and bearing errors
> >
> >
> >> I've just noted that on _some_ prefixes the distance and bearing shown in the
> >> summary window are wrong.
> >>
> >> For example I enter VP9 and get a bearing of 3 degrees. Bermuda isn't over the
> >> pole from Arizona, it's due east.
> >>
> >> Wes
> >>
> >> ______________________________________________________________
> >> Dxbase mailing list
> >> Home: http://mailman.qth.net/mailman/listinfo/dxbase
> >> Help: http://mailman.qth.net/mmfaq.htm
> >> Post: mailto:Dxbase at mailman.qth.net
> >>
> >> This list hosted by: http://www.qsl.net
> >> Please help support this email list: http://www.qsl.net/donate.html
> >>
> >
> >
> >
>
> ______________________________________________________________
> Dxbase mailing list
> Home: http://mailman.qth.net/mailman/listinfo/dxbase
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Dxbase at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
More information about the Dxbase
mailing list