[Elecraft] K3 Transmitting CW in SSB mode

Don Wilhelm donwilh at embarqmail.com
Wed Jul 27 14:39:49 EDT 2016


George,

The K3/K3S does *not* inject an audio tone.
It shifts the transmit carrier by an amount equal to your sidetone pitch.
Lower if you are on LSB and higher if you are on USB.

The effect is the same as adding a tone to a perfectly suppressed 
carrier, but is guaranteed to be clean.

73,
Don W3FPR

On 7/27/2016 2:21 PM, George Kidder wrote:
> Another way to look at the use of CW in SSB mode on the K3:  What I 
> think the rig does when you hit the key is inject an audio tone at the 
> CW offset frequency into the audio chain for the SSB signal.  If all 
> is clean and not distorted, the result will be a single RF frequency 
> offset from the SSB "carrier", and will be receivable as such by a SSB 
> receiver tuned to the SSB carrier frequency.
>
> If the K3/K3S doesn't actually generate an audio tone, it sure behaves 
> like it.



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