[Elecraft] Switching from SSB to CW on K3s

[Don Wilhelm]

Bob,

Assuming you have the CW signal (in SSB mode) tuned to your sidetone 
pitch ---
You will have to re-tune by the amount of your sidetone pitch when 
switching to CW.

The K3 (and all other Elecraft transceivers) insert a VFO offset between 
SSB and CW equal to the sidetone pitch set into the radio during receive.
SSB has no offset.

In other words, if you are listening to a 600 Hz CW signal when tuned to 
a 7040.00 kHz CW signal when in SSB mode (and your sidetone pitch is set 
at 600 Hz), you are actually hearing a CW signal at 7039.40 kHz when 
tuned to 7040.00 kHz (assuming you have LSB set in SSB mode).
When you switch to CW, you will have to tune to 7039.40 kHz to hear that 
same CW signal at 600 Hz - and that is the actual CW transmit frequency.

In other words, in SSB mode, the K2 frequency indication is the 
suppressed carrier frequency, but in CW mode it is the transmit 
frequency of the CW signal.

To further complicate matters, if you set CW in SSB on in the menu, that 
relationship changes.  You will transmit offset from the suppressed 
carrier frequency by the amount of the sidetone pitch so your signal can 
be heard by other stations tuned for SSB.

73,
Don W3FPR

On 3/14/2016 8:28 PM, Bob Novas wrote:
> When I'm in SSB mode and I tune down to the CW frequencies, I can easily
> tune in a CW signal. Then, I switch to CW mode, and the CW signal is gone
> because I'm on the wrong sideband. Even if I'm on the right sideband, the CW
> signal disappears.  Shouldn't I be able to switch from SSB to CW and not
> lose a CW signal?  Am I doing something wrong?  Thanks, Bob - W3DK
>