Re: [wsjt-devel] decoding MSK144 on command line?

[Joe T. <jo...@pr...>]

Hi Mario,

On 1/17/2020 4:26 AM, Mario Roessler DH5YM wrote:

> For decoding FT8 and some other modes the JT9 binary from the WSJT-X 
> package can be used. It can process WAV recordings.
> Is there a possibility to do that for the MSK144 mode as well?
> Background: The very nice openwebrx fork from dd5fjk can already monitor 
> FT8 in the background and monitoring 144.360 in MSK144 would be a very 
> useful thing.

The current structure of WSJT-X invokes a separate process jt9[.exe] to 
decode any of the "slow" modes.  Such decoding takes place at the end of 
a receive sequence.  In contrast MSK144, a "fast" mode, is decoded 
within the main wsjtx[.exe] process itself.

In principle there is no reason why a command-line program could not be 
written to decode MSK144 signals.  The necessary processing starts in 
Fortran subroutine mskrtd.f90.  This routine and all others required are 
available in the source-code tarball.

	-- 73, Joe, K1JT