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CW character timing jitter
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Lasse Moell
Member ✭✭
Running SSDR/Maestro 2.4.9.115 and Flex 6500. Keying direktly into radio front panel and using the built-in winkeyer. I notice that there are timing jitter to the characters i.e. a dash or dot may be shorter or longer than "normal", it's like a clock does not sync properly. I have not found out what setting will force this, and it is not always there, but sometime its more obvious. Restart does not "cure". Anyone else see/hear this problem? BTW I just noticed similar behavour using the built-in keyboard, and running SSDR
/Lasse SM5GLC
/Lasse SM5GLC
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Comments
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Are you using any other programs in connection with 2.4.9? I had a problem with jittery cw when using n1mm+. The problem was solved by changing the delay on the rig and n1mm+ to match.0
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I have DX4Win running, will try with a bare minimum i.e. only SSDR running. Still a bit odd as I expect the logging program pretty quitet, not messing with the radio.
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Does the problem persist if you increase the Delay value in the SmartSDR for Windows P/CW panel to some level that keeps the transmitter keyed between words?
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Well, yes I guess. I had it set to 150 ms and it was pretty bad, so reverted back to 10 or 15 ms. Thought it was a wee bit better but not sure, its back on 256 at the mo.. Really do not think this is the root cause, as I somtimes hear things go bad in a string of dits, wheras one or a few dits can get longer or shorter with out any reason. Very odd. Still have not confirmed if this is only on side tone or also on RF out, I need to record my self using seperate receiver for this.1
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Agree it would be helpful to find out if the problem is just with the sidetone, or if persists over RF.1
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Did you ever find the cause or fix?0
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I have this exact problem! I'm pretty sure it's not an RFI issue. I thought I had lost my 'fist' until I recorded a couple of CW strings and could hear this 'jitter' issue on playback.
I hope someone is working on it!
73, Bob, WØYVA
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