[Elecraft] KX3 sensitivity

[Bill W4ZV]

w1az at comcast.net wrote
> 
> I've used an XG3 and the audio voltage/db feature in the KX3 to check the
> sensitivity. In CW mode with the bandwidth set at 2.8kHz I get -131db.
> With the filter set at 0.05kHz it's -140db. I also tried with the peaking
> filter turned on and got -148db for both filter widths. Just curious how
> this relates to the specification of -137db, i.e. what bandwidth was used
> for that spec?
> 

The standard measurement bandwidth for MDS is 500 Hz.  What you're seeing is
differences due to noise bandwidth of the different filters you used.

73,  Bill

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