[Dxbase] Distance and bearing errors

Tue Feb 1 15:15:34 EST 2011

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
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