[CW] Learning hints

[Henry Mei'l's]

A split receive-transmit CW tone-frequency can be achieved by simultaneously keying a local audio oscillator or an RF activated CW monitor while deactivating or dampening the rig's built-in tone generator.
Also, to achieve the most comfortable received CW tone frequency, signals can be tone frequency adujsted  (and shaped) in a re-generator circuit where the incoming signal triggers a tone and bandwidth adjustable local audio oscillator. If desired, this "virtual signal" can be heard simultaneously with the "real" CW signal. I thought I invented this in the early 60's and I still have my unit where rectified receiver audio triggers a relay- controlled audio oscillator. It still works. I even submitted the idea to the US Navy. However, my further research showed that the idea was first brought out in the 30's - One later commercial unit is called the "Scrubber" (scubs the signal clean!). Several versions have been published in ham radio magazines.

73s Henry OZ1UF
  ----- Original Message ----- 
  From: D.J.J. Ring, Jr. 
  To: CW Reflector 
  Sent: Friday, January 15, 2010 12:19 PM
  Subject: Re: [CW] Learning hints


  Another "odd" thing about tones is that many (including myself) prefer to have a different sending tone than receiving tone.


  Perhaps because I can "copy" better with one tone, but like the "sound" of another tone.


  This will be a problem for those who zero beat using "matching sidetone to "on-the-air" tone as since the tones don't match, the operator will be off zero beat.


  73


  DR


  On Fri, Jan 15, 2010 at 5:40 AM, <meils at get2net.dk> wrote:

    My experience is that after a longer period of contiuous operation,  I get
    "deaf" at the particular tone frequency being used and the cure is to
    shift to another tone (I usually find a lower tone best - depending on how
    high the original frequency was). In general, I find that at speeds of
    over 20 wpm, I prefer 500-800 Hz. My hearing seems to peak at about 1 kHz
    but I
    don´t find 1 kHz a comfortable operating frequency.

    73s  Henry - OZ1UF


    > John Seney wrote:
    >> Hi Folks:
    >>
    >> What is the best pitch to listen to CW?
    >>
    >> I note most radios are settable but default to 600 Hz. Many training
    >> sets use 680 Hz or higher.
    >>
    >> I've heard some suggest that one should spot the natural tone in your
    >> own mind as "your frequency".
    >>
    >> What do you think?
    >
    > After a bit of experimenting I settled on 800Hz, 600Hz felt a bit too
    > low for fast CW.
    >
    >
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