[Elecraft] K3 Transmitting CW in SSB mode

[Grant Youngman]

It's just a"few lines of code" ;) 

All done in DSP most likely.  Simpler than doing the same thing in an analog radio. 

Grant NQ5T

Sent from my iPhone

> On Jul 27, 2016, at 5:22 PM, George Kidder <gkidder at ilstu.edu> wrote:
> 
> Thanks, Don.  Harder to implement, but safer.
> 
> George
> 
> 
>> On 7/27/2016 2:39 PM, Don Wilhelm wrote:
>> 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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