On 18/04/2014 02:36, Joe Taylor wrote: > Hi Bill and all, Hi Joe, > >> Is the JT65A+JT9 split at a particular DF a technical requirement for >> the decoder or is it there to marshal band usage and nudge operators to >> separate sub-bands for each mode? > Two good reasons for having a "blue line": > > 1. As you say, to encourage operators to keep the two mode in slightly > different slices o0f the band. > > 2. To prevent a big slow-down of the JT9 decoder as it tries (without > success, of course) to decode all the JT65 signals. Ok, I thought that was the technical reason. > >> The reason I ask is that my current changes could easily accommodate >> automatic mode setting in dual mode depending on whether the cursor is >> left or right of the blue line. >> >> The net gains of auto mode switching would be more space on the main >> window as the mode button could be removed and simplify dual mode >> operation a little. OTOH if the split is not for technical decoding >> reasons then the button has a purpose if the split divider were to be >> discarded. >> >> Also as things are at the moment the RX cursor indication of mode is >> fairly meaningless as far as I can see. > I'm not sure that I really understand what you're getting at. The > program is already "dual mode" in receive; the setting of "Tx Mode" > simply tells the program which mode to decode first. Moreover, the > program already does automatic switching of the Tx mode when you > double-click on a signal or a line of decoded text. The shape of the > waterfall cursors reflects the setting of Tx mode. I guess it boils down to single clicks in the WF also setting the mode automatically. > > I don't see that space on the main screen is severely cramped at > present, and I don't see just how dual-mode operation would be made > simpler without the Tx Mode button. But maybe I haven't grasped what > you have in mind. The vertical space is at a premium on a lower resolution screen when the band is busy, I've had a couple of comments about changing the layout to fit mode decodes in somehow. The button would become superfluous given the statements above and below.
The simplification would be that it would become impossible to transmit in a mode on a frequency where a reply could not be decoded. Not a big deal, but it seemed a natural consequence of the split always being there for dual mode. Although I can see a few complications when operating right at the division and drifting a bit, then moving the divider is necessary but that is already the case. > > -- Joe 73 Bill G4WJS. ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech _______________________________________________ wsjt-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/wsjt-devel
