[Elecraft] KX3 firmware update (12-kHz audio spur fixed, etc.)

[John_N1JM]

No improvement here that I can detect in the weaver demod fix.
73,John N1JM


wayne burdick wrote
> Hi all,
> 
> We're putting the finishing touches on a KX3 field-test firmware release
> that eliminates the 12-kHz audio spur reported earlier this week. I can't
> hear it, myself, but I can see it on my spectrum analyzer. In our lab
> tests the spur is knocked down into the noise -- around 20 dB reduction.
> Hopefully this will do the trick.
> 
> The fix we implemented is an improvement on turning on the RX I/Q menu
> entry. The new method only increases current drain by 3 to 4 mA, while
> setting RX I/Q to ON increases current drain by about 10-15 mA.
> 
> This release also includes corrected "Weaver-mode" SSB receive
> demodulation (greatly reduced opposite-sideband image), and all of the ATU
> tuning improvements mentioned earlier.
> 
> If you've been bothered by either the Weaver demod issue or the 12-kHz
> spur, please email me directly so I can send you the new code.
> 
> If you sent me a request earlier, and didn't get it yet, that's because I
> was making further improvements. You're still on my list.
> 
> tnx
> Wayne
> N6KR
> 
> 
> 
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-----
73, John N1JM
K3 #5986
P3 #1752
KPA500 #596
KAT500 #575
KX3 #926
XG3
XG1

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