[Elecraft] K3 Firmware

James Sarte k2qi.nyc at gmail.com
Thu Nov 11 23:17:07 EST 2010


Hi Lyle et all,

Sorry for the rapid-fire succession of email from me regarding this, but
I've found a way to replicate the issue.

I've noticed that when you reduce drive power so that the 10W amplifer is
inline, then increasing drive back up to 100W, only 50 watts will initially
be produced.  Whistling into the mic while this is happening will show the
output power slowly creep back up to the full 100W after a few seconds.

I've never had this problem until now. I do recall others describing similar
issues with firmware back in the 3.XX range.  Performing the TX gain
calibration does not fix the issue.

James K2QI


On Thu, Nov 11, 2010 at 11:07 PM, James Sarte <k2qi.nyc at gmail.com> wrote:

> Something I've discovered; switching between antennas seems to affect power
> output with 4.14.  For example, I was able to get 100 watts out on ANT1 but
> switching to ANT2 on a dummy load only gave me 50 watts.  Switching back to
> ANT1 then back to ANT2 brought power level back up to 100W.
>
> Any suggestions?
>
> James K2QI
>


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