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CWX rise and fall times for CW envelope.
Howard K2AQ
Member ✭✭
Super Aug Insider preview. Would like to see CWX have the ability to adjust the rise and fall times of the CW envelope. Any comments?
0
Comments
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If the CWX speed control is linked to the current CW speed slider, then three separate rise/fall states are already included based on sending speed. The present waveform break points are at 20 and 30 wpm.
I measure approx. 8 ms symmetrical rise/fall up to 20 wpm, 5 ms between 20-29 wpm, and 2 ms at 30+ wpm.
Paul, W9AC
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I hooked up my Rigol Scope today and had from 5 - 30WPM about 5mS and above 30WPM about 2mS rise time with Software Version 1.3.8 - the CW-speed slider was used for this test and I keyed with an Microham CW-Keyer up to 60WPM. Could no more find the 8mS down to 5 WPM.
I compared the CW-sideband-test-results from Adam AB4OJ between Anan 100D and Flex 6700 and was surprised about the difference of about 15dB@1KHz off carrier, although the diagrams are barely readable at the top 10dB.
When watching the panadapter from my 6500 in CW it´s easy to see that at 1KHz from carrier the sidebands are 70dB down no matter if 1-100Watts output.
Would be nice to hear more from CW-operators about the impressions for the 6000s. My 6500 has not the popping problem that N4LQ has described.
The QSK with my preferred speed of 25-30WPM is vy pleasant and makes a lot of fun. The reed-relay is vy quiet with the flex under the desk - the vacuum-relay from my HerculesII-Mod.420 is much louder....
73, Helmut dl9eri/oe9eri
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Paul,
Have you measured rise/fall times in more recent software releases? I seem to remember reading somewhere that they were changed to keep them between 6-8 ms now, depending upon Keyer Speed setting. Last I heard there was also only an 8 ms delay between keydown and beginning of note. This is pretty good, I think.0 -
Hi Ken. It's been over a year that I've made any CW waveform measurements. I can do this after the Thanksgiving holiday.0
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