[Elecraft] K3: New Utility: S-meter calibration

[chen dave]

I don't think most of us need this function. Mine K3 S meter is good enough.
See the following table for my K3:
 uV S meter
 dBm(from) S meter dBm(to) 50 S9
 -77 S9 -72 25 S8
 -71 S9+5 -67 12 S7
 -66 S9+10 -63 6 S6
 -62 S9+15 -58 3 S5
 -57 S9+20 -55 2 S4
 -54 S9+25 -53 1 S3
 -52 S9+30 -48 0.9 S3
 -47 S9+35 -42 0.8 S3
 -44 S9+40 -41 0.7 S3
 -40 S9+45 -37 0.6 S2
 -36 S9+50 -34 0.5 S2
 -33 S9+55
 0.4 S2
 -32 S9+60
 0.3 S1



 0.2 S1



 0.15 S1



 0.1 S0






73 DE BA4RF/David

On Thu, Aug 13, 2009 at 8:07 PM, David Pratt <david at g4dmp.fsnet.co.uk>wrote:

> I have just completed a full recalibration of Power and the new S-meter
> calibration with successful results. I am most impressive.
>
> One query though...  Using the SG1 to generate a 1uV and 50uV signal
> source on 7040kHz, after calibration I find that the S-meter reads
> S9+5db with 50uV and S4 with 1uV.  This is with both the main RX and the
> Sub RX.  Is that what others find?
>
> Also, Dick, would it be possible in a future utility release, to go
> straight to the Sub-RX calibration without having to do the Main RX
> first?
>
> Many thanks for an excellent program.
>
> 73
> --
> David G4DMP
> Leeds, England, UK
> ------
>
>
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