Keying perfect QRQ CW on an ELECRAFT K3S at 111 wpm with the AD5DZ CW software

[QRQqCW]

https://youtu.be/dQCAiKEGTdA
brief demo of sending QRQ CW at 111 wpm from a text file to see how well the ELECRAFT K3S keys when using the AD5DZ REMOTE CW KEYING system

this video at 111 wpm, is a follow up to the previous video https://youtu.be/u5nBB9OcQj0

RF SCOPE and AUDIO SCOPE used to view RF and AUDIO wave forms..(the CW audio you hear is from the K3S transmit input audio monitor)

AD5DZ RECRI KEYER CW KEYING appS
https://github.com/recri/keyer
https://youtu.be/l8wKVnA4oGc

THE "secret" of this Extreme QRQ CW keying is using AFCW mode and the RECRI AD5DZ PTT app which sends a delayed by 18 to 20 ms CW NOTE behind a first tone at 5555 hz that activates the RIG's VOX PTT circuit to turn on FULLY before the QRQ CW NOTE arrives...

ALSO: worthy of noting....that a well designed CW AUDIO BANDPASS Filter is used to shape the keying beyond what can be accomplished using RISE/FALL time...the CW NOTE EDGE NOISE above 100 wpm is significant and COPY by ear benefits greatly by adding an additional CW AUDIO BANDPASS filter (Gstreamer BPF used in this example)
gst-launch-1.0 jackaudiosrc ! queue !  "audio/x-raw,channels=1,rate=48000,format=F32LE" ! audioconvert ! audiowsincband mode=band-pass lower-frequency=752 upper-frequency=952 length=700 window=hamming ! audioconvert ! audioamplify amplification=1 !  audiorate ! queue ! jackaudiosink buffer-time=25000
Here is an article about this:  http://qrqcwnet.ning.com/profiles/blogs/the-difference-a-simple-qrq-cw-transmit-bandpass-filter-can-make-

Here is a playlist that has been started using this method
https://www.youtube.com/playlist?list=PLfFan4sDonOdyC6rrtUKvjMayaX2-Yubh

 

[GM0WEZ]

Wow.

I've no complaints with my K3's keying, though it hardly gets such a formidable test from me!

Was interested in the excellent QRQ website and in particular the training tips http://qrqcwnet.ning.com/page/qrq-training-tips

I'm not very fast in either sending or copying, but I do think trying to increase your CW speed is a laudable aim. The hobby is, after all, formally defined by international treaty as a service for 'self-training' and it fits perfectly with that.

I liked the tip about listening to speeds you can't read and trying to pick out words. It's true. I'm sure we can all pick out CQ, DE, TEST, etc at speeds that we can't t otherwise  copy. And if you can pick out three words, then it's just a matter of practice to pick others out.