[Elecraft] Re: Strange KAT100 Symptom

[k4wtf@ENTERZONE.NET]

On Sat, 4 Jan 2003, Wayne Burdick wrote:

> Hi Joe,
> 
> Chances are you have more RF getting into the control cable on 17 m than on the
> other bands. This will affect the peak SWR readings much more in SSB mode than
> in CW mode. It's purely an aesthetic issue--the SWR is no doubt actually close
> to 1:1 as indicated in TUNE mode.
> 
> We recently updated the KAT100 firmware to revision 1.04, making several minor
> changes. One of them was to corrent the tendency for SSB signals to show SWR
> higher than reality on voice peaks. This is likely to fix your 17 m problem,
> despite the possibility of higher RF on the cable on this band. We now do more averaging.
> 
> In addition, Rev. 1.04 lets you install KAT100 jumpers W1 and W2 to override the
> K2's normal dot/bar LED modes (as set by the GRPH MENU entry). W1 forces DOT
> mode and W2 forces BAR mode. It also fixes a problem on 160 meters. With
> revision 1.03, the inductance value for antenna 1, on 160 meters, is lost when
> you turn off the K2, requiring a re-tune.
> 
> I'll make sure we've added a KAT100 firmware upgrade to our order page.
> 
> 73,
> Wayne


Hi Joe...  I've been running the Rev 1.04 beta code for the KAT100 for a
couple of weeks now and haven't noticed the VU-Meter action on the tuner
although, I did notice it once or twice previously on Rev 1.03.  I don't
recall which bands it happened on though.

I can tell you that the upgrade is painless (lots of room on both sides of
the firmware prom to let you pry it out!)  In addition to the features and
fixes that Wayne mentions above, I have also noticed a slight increase in
MoJo levels!

73 de John - K4WTF