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April 17th 07, 10:42 PM
posted to rec.radio.amateur.homebrew
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CW copying Improvement
On Mar 31, 7:56 pm, "DaveS" wrote:
I helped my CW hearing ability by making a long speaker box which allowed the speaker element to slide up and down the length of the box, changing the resonant pitch of the box, which allows an audio "peaking" effect. This has the effect of amplifying the cw sidetone at different pitches and also increasing the S/N ratio. Usually, the QRN gets lost in the longer travel up the wooden box. Dave N4DAG - Dave, that's genius. |
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