[Elecraft] K3 SMTR Settings for S9

[Joe Subich, W4TV]

> Should the SMTR OF setting that is almost 20% off the factory default
> be an indication that something is amiss in the receiver gain chain?

No, my K3 is farther than that from the default.  I've calibrated the
S meter using the XG-3 and done the RF gain procedure.  There is no
issue with levels from the IF output and showing normal (calibrated)
signal levels at -107dBm (S3), -73dBm (S9) and -33 (S9+40) dBm on
either the P3 or SDR-IQ.

73,

    ... Joe, W4TV


On 2015-03-10 9:35 AM, engineercm wrote:
> Last night I was adjusting the sound levels into my sound card from a new
> LP-Pan2 and could not get to S9 using my XG3 at -73 dbm unless the preamp is
> ON.  I also noticed the S meter was reading S7.  I checked the S meter
> calibration using the procedure in the manual and found I needed to adjust
> SMTR OF to 20 instead of the default 24.  I checked two bands 20m and 40m
> and got the same results.  The XG3 is connected to the RX Ant and the ATU is
> BYPASS.
>
> My K3 has all of the latest firmware updates. SMTR MD is ABS so the preamp
> is OFF.   I've triple checked the settings on the rig to see if there is
> something I missed (like RF gain) but all check out.  Should the SMTR OF
> setting that is almost 20% off the factory default be an indication that
> something is amiss in the receiver gain chain?  As far as I can tell, the K3
> is working fine except I can't drive the sound card output to S9 without the
> preamp?
>
> 73 de Clark/WU4B
>
>
>
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/K3-SMTR-Settings-for-S9-tp7600057.html
> Sent from the Elecraft mailing list archive at Nabble.com.
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