[Elecraft] [K2] Sensitivity on 17m

[Bill W4ZV]

Mike K8CN and I both came to the same conclusion overnight.  Check the ATU in
bypass mode!  Using both RX ANT and forcing bypass via CAL_P, the
sensitivity is back on 17m.  I also notice smaller but still noticeable loss
on 15m.  

I didn't build this KAT2 myself but it seems to tune OK for TX on all bands. 
I guess it's time for some ATU troubleshooting but other ideas are
appreciated.

73,  Bill  W4ZV


Bill W4ZV wrote
> During a SOTA activation Saturday I used 17m quite a bit as well as 15 and
> 20.  Sensitivity on 17m seemed weaker than on adjacent bands and I thought
> it could be my antenna (44' doublet up 25' with 450 ohm ladder linie
> through a BL1 4:1 and KAT2).
> 
> Tonight I decided to check it with my XG3 and indeed the 1uV setting is
> noticeably weaker than on 15 and 20.  I first redid RX alignment of L10
> and L11 on 15m and then C32 and C34 for 17m with no improvement.  The
> S-meter reads the same for all 3 XG3 levels but 1uV sounds weaker on 17. 
> Anyone have any ideas?
> 
> 73,  Bill  W4ZV





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