Improved Sending

This topic contains 1 reply, has 2 voices, and was last updated by Fred Kemmerer Fred Kemmerer 1 year, 5 months ago.

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  • #5421
    Mike Ryan
    Mike Ryan

    Quality CW sending and receiving is dependent upon good timing. The length of dits and dahs is completely under the sending stations control when using a STRAIGHT key. To a lesser extent, this also happens when using a BUG.

    Ideally, an Electronic Keyer will provide precise timing for length of the dits and dahs and the “off time” or space between them. The prescribed “off time” interval will always follow each dit or dah before the next dit or dah can be sent. The user is responsible for providing sufficient “off time” between each character and word. Thus the user has total control of this “off time” interval.

    A problem occurs when the sender reacts too slowly on the keyer paddles when sending a letter. Delayed or slow hand motion can break a character into two or three smaller groups of dits and dahs. The internal logic of the keyer forces the required minimum “off time” before the next intended dit or dah can begin.

    This means that there is NO PENALTY for depressing the other paddle too early. You CAN’T OVERRUN the keyer internal timing! The trick is to remove your finger off the paddle before the dit or dah has completed, so you can avoid any extra or unwanted dits and dahs being generated.

    This benefits both the sender and the receiver of the character that you want to send. By chance, I came across a software application that may help. It was written to help with STRAIGHT key sending, but would also work well in this environment. In essence, it forms a sort of Oscilloscope timing graph showing the length of the elements that are being sent and the relative measure of the space between them.

    The tool called PRECISION CW FISTCHECK (PCW FistCheck) and more information can be found at:

    You’ll also get a quick look at how it may help at the following video:

    The tool is demonstrated at several speeds – go to youtube and Search for the phrase “Learn to Read Morse” several speeds will be found.


    - Mike (K1WVO)
    Nashua Area Radio Club
    Visit us on the web at -

    Fred Kemmerer
    Fred Kemmerer

    This is a good practice tool. I’ve bookmarked it. Thanks Mike!

    - Fred (AB1OC)
    President, Nashua Area Radio Society
    Visit us on the web at -

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