Hi Roger

I confirm your findings.

73

Charlie G3WDG

> Here I find the following:
>
> When jt49sim is commanded to produce a jt4 wave file it produces a jt9
> wave file, e.g. the command:
>
> jt49sim "K1ABC W9XYZ EN37" 4C 1 0.0 0.0 1 -15
>
> produces a JT9C wave file instead of the expected JT4C wave file, even
> though the console message says that a JT4 wave file is being created:
>
> ===============console message follows================
>
> C:\JTSDK\wsjtx\garc\qt52\1.9.0\Release\install\bin>jt49sim "K1ABC W9XYZ
> EN37" 4C 1 0.0 0.0 1 -15
> File  Sig    Freq  Mode   S/N   DT   Dop    Message
> ------------------------------------------------------------
>    1   1  1000.000  4C  -15.0  0.00   0.0 K1ABC W9XYZ EN37
>
> ===============end of console message================
>
> The wave file produced is a JT9 wave file:
> http://w3sz.com/JT4C-Original.wav
>
> So whether the specified mode is "4" or "9", a JT9 mode wave file is
> always produced.
>
> This is so with version 1.9.0-rc4 r8642 from directory
> C:\JTSDK\wsjtx\garc\qt52\1.9.0\Release\build (which I copied to
> ..Release\install\bin)
>
> compiled locally using JTSDK 2.0.6-0 Release r715.
>
> This is true for all sub-modes JT4A-G.
>
> I thought that the likely culprit causing this problem was line 56 in
> jt49sim.f90, "imode = 9" which is placed right before the imode "if"
> statement, which you can see here:
> https://sourceforge.net/p/wsjt/wsjt/8642/tree/tags/wsjtx-1.9.0-rc4/lib/jt49sim.f90
>
> I suspect that this line was accidentally left in place after it was
> added during debugging.
>
> Removing line 56 ("imode = 9") and recompiling corrects the problem so
> that JT4 files are produced by the "4" option and JT9 files are produced
> by the "9" option.  A wave file created using the same command line as
> was given above, but after the correction to the code as just described,
> is here:
> http://w3sz.com/JT4C-Corrected.wav
>
> 73,
>
> Roger Rehr
> W3SZ
>
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