March 2019 Blog Posts (2)
Elecraft K3S - Keying QRQ CW - A1 mode VERSES A2 mode - LIVE DEMO
Brief demo of keying QRQ CW on the ELECRAFT K3S using A1 mode and A2 mode(AFCW) at 75 wpm to show the CW bandwidth spectrum and CW waveshape differences
A1 MODE = default way to key CW on the K3S , the K3S uses the typical RAISED COSINE at 8 ms rise/fall time and cannot be changed
A2 MODE is done by using the AD5DZ software CW…
ContinueAdded by Chuck aa0hw on March 27, 2019 at 9:55am — No Comments
QRQ CW wearable speaker - using a flat panel speaker and the CW AUDIO CANNON
one of the challenges when using a speaker for "copy by ear" listening to QRQ CW audio tones, is that the pure sine cw audio tones bounce off the walls, floor and ceiling of the room you are in and can cause all kinds of weird effects...this experimental combo of using a surplus, 5 buck, 4 ohm, flat panel speaker and the CW AUDIO CANNON…
ContinueAdded by Chuck aa0hw on March 9, 2019 at 7:02am — 1 Comment
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