Trying again remembering the plain text without HTML or Rich Formating.
Approximately one month ago I brought to the Digest information on my
six-month-old K3 involving noise generated while tuning either the VFOs or RIT
while on the 10 meter CW band. It was at a level of two S meter bars where it
peaked around 28000 and again at 28045 KHz. This also showed up on my receiver
on 6 meters where it manifests itself as audible steps while tuning threshold
level CW signals such as on the EA6 I worked in June. Although my K3 doesn't
have 5 MHz tuning hash, there are also some that were reported.
Wayne responded to me while on his vacation and promised to look into it
further upon return to work in mid July. Since then I've been contacted with
possible fixes after it was determined that the hash was SPI bus related
radiation into the front end of the receiver. I was forwarded a pre release
Beta Firmware version to try and it confirmed that their findings at the
factory corrected this issue. I was also informed that, if needed, there are
other simple component related fixes involving the PCB serial bus that will be
possible.
I'm happy to report that on my factory built K3 S/N 2274, has most of the hash
eliminated with only the firmware. Wayne is in the process of finalizing all
the avenues by which those who have this issue can resolve it. This is not a
universal K3 issue. I know many K3 users who don't have this condition. Only
some have experienced this and they can deal with this once there is a
finalized firmware/hardware upgrade. I understand that this will be available
within a few weeks.
I wish to finish by expressing my thanks to Wayne and the Elecraft team who are
handling this with excellent service and professional expertise. We are lucky
to have such a great product Designed and Made in USA Amateur Radio high tech
multi-mode transceiver.
Cheers
John, W1QS ex N6JL
K3 s/n2274, K2 s/n4204
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