[Elecraft] K3 built-in 2-tone generator problem (2.7 kHz filter)

[Guy, K2AV]

wayne burdick wrote:
> 
> We just discovered that it was not working with the 2.7 kHz filter. One 
> of the tones would in this case be right on the filter's edge, 
> resulting in very poor tone balance. Also, 2-tone testing was set up to 
> work only in LSB mode.
> 
> Anyone trying to use the 2-tone generator for testing with the 2.7 kHz 
> filter and/or USB may have quite anomalous results.
> 

As in some may have been affected, others not, depending on the filter?

I would assume that everything was OK if one was viewing the transmitted
two-tone signal with a scope and was able to adjust the independent tone to
get a nice sharp zero crossing notch on the RF envelope viewed at an audio
sweep rate. 

73, Guy. 
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