View Single Post
  #6   Report Post  
Old April 17th 07, 09:42 PM posted to rec.radio.amateur.homebrew
[email protected] coldcity@gmail.com is offline
external usenet poster
 
First recorded activity by RadioBanter: Apr 2007
Posts: 1
Default 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.