[Elecraft] K3S DSP Filter Plots

[Alan]

Both the P3 and the K3 use S9 = -93 dBm on 2 meters.  The P3 can read 
out in either S units or dBm.

And they both treat 6 meters the same as HF:  S9 = -73 dBm.

Alan N1AL


On 11/18/2015 05:18 PM, Greg Troxel wrote:
> Alan <n1al at sonic.net> writes:
>
>>  From Wikipedia:  https://en.wikipedia.org/wiki/S_meter
>>
>>     "IARU Region 1 Technical Recommendation R.1 defines S9 for the
>>     HF bands to be a receiver input power of -73 dBm. This is a level
>>     of 50 microvolts at the receiver's antenna input assuming the
>>     input impedance of the receiver is 50 ohms.
>>
>>     For VHF bands the recommendation defines S9 to be a receiver
>>     input power of -93 dBm. This is the equivalent of 5 microvolts
>>     in 50 ohms."
>
> I have always found the VHF definition to be strange, as it seems that a
> uniform rule is better.
>
> My impression is that the K3 and KX3 use the -73 dBm reference even on
> 6m.  Is that right?  What about with transverters - does one have gain
> calibration?
>
> Obligatory Elecraft comment: it would be really nice to be able just
> show signal strength in dBm.
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