Good Morning List,
My KX3 has a quirk that has persisted thru a factory service visit. I'm
hoping someone here has seen this before and can give me pointers on how to
resolve this.
I have a very unusual 40m behavior. I just spent a couple hours re-doing all
the sideband nulling and verifying that on 40m I have a very deep null (-30
dBv) on 'center freq' as defined by the 'spot' frequency.
Previously I'd documented this, but had not checked all bands. Today I checked
every band, and it is only on 40m. I have confirmed manual notch is OFF.
Configuration is as received from Elecraft after the RSA (which resets all the
sideband nulling on an automated fixture, followed by a tech verifying since
that was part of the complaint). AF is set to 17 Note that the center tuned
signal (from the PX3 calibrator) generates AFV = 1173 on all bands ( basically
RX Vmax I'd assume). The data points below correspond to the CWT symbol and
the major 'tick' left and right of CWT.
Config:
- AF = 17
- Notch = off
- Mode = CW
- BW = .350
- Base Freq = 7.199 MHz
(L) (CWT) (R)
Freq 99.41 99.46 99.52
AFV 533 15 568
This effect is -30 dBv over less than 100 hz, and compared to other bands its
down -38 dBv
So I'm at a loss on where to find what I've mis-configured. Any suggestions
or idea's ?
Niel
WA7SSA
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