[Elecraft] K3_ CW Sideband_ Sidetone

[Don Wilhelm]

Ken,

The K2 uses high-side LO injection for the bands 17m and below, but for 
15m and above low-side LO injection is used.
What that means is that the K2 'switches sidebands' at 15 meters and above.
That is the reason that the recommended filter/BFO setup is done on one 
of the lower bands (40 meters is usually recommended), and the CW 
filters are set below the filter center and the CWrev filters are set 
higher than the filter center.  The same goes for SSB - LSB is below the 
filter center while USB is above *except* for the 15, 12 and 10 meter 
bands where the sidebands are reversed.  The firmware automatically 
corrects for the shift, but you can see it in a waterfall display.
If you are using the RTTY filters, they are usually set with the 
sidebands like those for CW and SSB, but the normal mode of operation is 
with RTTYrev which will be the upper sideband set.

73,
Don W3FPR

Ken Roberson wrote:
> Hello All,
> My first time to ask fer help.
> What sideband sud the cw sidetone be on , Upper
> or lower sideband .
> And how do i change it.
> Some bands are set fer lower and some fer upper.
> I am using MixW digi mode software and on the waterfall I can c the change when i switch
> from 20M to 15 M , When the rig is in CW mode.
>
> Tnx 73 Ken K5DNL
>   
>