[Xastir] What is very large rectangle with X in center on station?

[Bill Bird]

Hi Tom,

Thank you for the answer and the url's!

73,

Bill Bird
KG0YJ

On 2/21/2020 10:07 AM, Tom Russo wrote:
> It's a station transmitting with position ambiguity (truncated precision
> position).  The box represents the range of positions that the station could
> be in given the limited amount of data it transmitted.
>
>
> http://blog.aprs.fi/2011/01/position-ambiguity-support.html
>
> http://www.aprs.org/symbols.html
>    (APRSdos used circles for ambiguity)
>
>
> On Fri, Feb 21, 2020 at 10:05:16AM -0600, we recorded a bogon-computron collision of the <billbird at cal.berkeley.edu> flavor, containing:
>> Hi,
>>
>> In the St. Louis, MO area I see from time to time on my Xastir map (rf only)
>> a very large rectangle (more than 50 miles in North/South direction) with an
>> X on the station AC0MW-7.?? The X goes from corner to corner of the
>> rectangle.?? The X and the rectangle are made of dashes.?? I have been using
>> APRS since APRSdos and continue to enjoy it.?? The current Xastir map is
>> shown on my website, www.billbird.com.?? I've tried to discover the answer
>> on my own but have not been able to.
>>
>> Thanks and 73,
>>
>> Bill Bird
>> KG0YJ
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