Hi Joe Re slider
I understand now why the levels anywhere other than 0dB are higher than before. I personally like 30dB range as it allows at least 20dB of linear adjustment with margin for saturation at the top end. I will need to adjust the attenuation between PC and mic input though. The accurate 'calibration' (at least with Windows) is a definite bonus. Also relatively easy to set to within 1dB. Re bad behaviour of Halt TX. No recipe I'm afraid. It seems to happen all the time with a specific program release and specific PC. Several of the "Microwave Group" have also experienced it. I have one release (5499) that behaves properly, per the User Guide, on one PC and misbehaves on another. [Misbehaviour is Halt not disarming Enable TX (stays red) so that on next TX sequence the program still transmits. After a Halt press, tones do stop immediately (and PTT puts rig back on receive) but yellow status shows Txing until t=50s, when it indicates receiving.] With r5567 from yesterday, both PCs misbehave. Charlie -----Original Message----- From: Joe Taylor [mailto:j...@princeton.edu] Sent: 10 June 2015 18:09 To: WSJT software development Subject: Re: [wsjt-devel] Calibration of the "Pwr" slider in dB. Hi Charlie and all, On 6/10/2015 12:50 PM, char...@sucklingfamily.free-online.co.uk wrote: > Hi Joe > > Works fine, thanks! Checked over a 20dB range and seems very accurate. > > For a given slider position, I believe the level is higher now than it was > previously. Should be no change with the slider at top. At other positions the attenuation is only half as many dB as before. But... maybe Bill wants to change it back? I don't really care; but in that case, at least we should remove the Tool Tip that claims to be calibrated in dB! Also: I think I have made the attenuation() and setAttenuation() functions inconsistent. That should be fixed. I had thought we were simply reducing the amplitude of (digital) samples being sent to the sound card. If we are (now) using Qt to mess with OS sound-system volume controls, all calibration bets are off! On another matter Charlie has brought up: although I think I saw it once, several days ago, I can't seem to reproduce the bad behavior of the "Halt Tx" button that you describe. Can you provide a simple recipe to make it happen? Finally, in case I forget to mention it later: I will be away from home and out of email contact from June 15 to June 24. -- Joe ---------------------------------------------------------------------------- -- _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel ------------------------------------------------------------------------------ _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel
