Hi All,

after some discussion on the Yahoo WSJT-X list it seems that some users 
may be confused about the interaction between the waterfall bandwidth 
and the decoders. This confusion may come about with users who already 
have a waterfall display of their Rx e.g. SDR users.

I propose to change the initial defaults for the waterfall to be a 4 kHz 
bandwidth (0 - 4000 Hz) with a suitable bins/pixel setting to fit on the 
smallest likely monitor. Along with this the default mode could be set 
to JT65+JT9.

I see one downside to this, those with HD monitors may drag out the 
width of the waterfall without adjusting the bins/pixel which will cause 
a crash if "Flatten" is enabled. This probably needs fixing regardless.

We would also have to make it more prominent in the documentation that 
without enabling split mode operating it is unlikely that transmission 
of JT9 signals is not going to work.

Any objections, comments or, alternate suggestions.

I know the user guide does say that the WF bandwidth effects decoding 
but in the interests in encouraging JT9 activity maybe we should nudge 
users to look up the band a bit and inform them that they can reduce the 
bandwidth if their Rx has no output up near 4 kHz. This approach will 
also make the progression of the tutorials different in that the +2 kHz 
check box would need to be introduced as an alternative to split 
operating for those with limited Tx bandwidth.

73
Bill
G4WJS.

------------------------------------------------------------------------------
Dive into the World of Parallel Programming The Go Parallel Website, sponsored
by Intel and developed in partnership with Slashdot Media, is your hub for all
things parallel software development, from weekly thought leadership blogs to
news, videos, case studies, tutorials and more. Take a look and join the 
conversation now. http://goparallel.sourceforge.net/
_______________________________________________
wsjt-devel mailing list
wsjt-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/wsjt-devel

Reply via email to