[Bug 52131] wine-mono + RMS Express: HF Channel Selection Browser crashes

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52131

--- Comment #15 from Eric <eric.wheez at gmail.com> ---
I figured out that the OJ02UX gridsquare is definitely causing the problem in
some way:
 - I found a file called `C:\RMS Express\KI7POL\Data\RMS Channels.dat` that
contains channels that are downloaded from the internet (when pressing the
"Update from Internet" button) and then later calculated for propagation
quality.
 - Pressing the "SFI" button seems to not download a new `RMS Channels.dat`
file and just calculate propagation quality from the .dat file.
 - If I delete this line in the .dat file `9W2RUT|OJ02UX|7093|41|00-23|PUBLIC`
then RMS Express doesn't crash with wine-mono when pushing the "SFI" button. 
 - If I replace OJ02UX with a different gridsquare (so that it looks like:
9W2RUT|DN06UB|7093|41|00-23|PUBLIC), then the crash is also averted.
 - If I replace 9W2RUT with a different gridsquare, but keep OJ02UX (so that it
looks like: DN06UB|OJ02UX|7093|41|00-23|PUBLIC), then the crash happens again. 
I've discovered that 9W2RUT is a person's callsign, not a gridsquare.

I'm currently crunching through some gridsquares that I made up from this map:
https://en.wikipedia.org/wiki/Maidenhead_Locator_System#/media/File:Maidenhead_Locator_Map.png
to see which ones crash RMS Express with wine-mono.  I'm planning on comparing
those `WINE_MONO_TRACE=N:PropagationPrediction` traces with the working ones to
see what might be different between them, though it's taking a while.  It's
also possible that RMS Express might be using a calculation to convert
gridsquare to lat/long and maybe something in that calculation is erroring -
though that might not produce a Delphi exception error if that was the case(?)

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