Note that 2 Hz refers only to the reference oscillator which is close to 49,380 kHz. That is about .04 ppm, or about 10 times greater than the specification for the high stability (optional) TCXO.

The frequency accuracy at HF will also be .04 ppm - at 10 MHz that is 0.4 Hz, at 20 MHzit is 0.8 Hz and so on.

73,
Don W3FPR


On 3/11/2016 11:03 AM, David Anderson wrote:
You may want to have a look at this for some background on real world frequency 
stability, and remember that the K3 isn't phase locked to the external 
reference and is only going to be within 2Hz.


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