[Elecraft] K2/100 SSB ALC Problem(Revised)

[Don]

I just discovered that the behavior described below only occurs at turn-on. 
Changing to ALC display causes results in normal control of power level as 
described but if I then switch back to RF display then power control 
*remains* normal.  Only when I turn the rig off and back on again does the 
power go out of control.

Don K7FJ
-------------------

>I almost never use SSB mode so have a lot still to discover about my K2 in 
>ssb mode.
>
> I was on 40 meters ssb last night at 20 watts or so and found that the rig 
> kept rebooting.  It was caused by an output that was actually well over 
> 100 watts.
>
> Later, connected to a dummy load and monitoring output with a scope across 
> the load I found that.
>
>    1  The rig always turns on with the metering set to RF mode ... just as 
> the manual says.
>
>    2  With the metering in RF mode the power is not controlled at all.  No 
> matter where the power level is set (11 to 100 watts with the KPA100 
> engaged) the output peaks at over 100 watts.   When I switch the bar 
> display to ALC the output is controlled as I would expect ... at whatever 
> the power has been set to.
>
>    3  CW mode is normal.
>
>
> I had thought that ALC would be active and in control even when the 
> metering is set to display power instead of ALC level but that does not 
> seem to be the case.
>
> I'm using an Icom IC-HM7 mobile mike (amplified).  It seems to have about 
> the right amount of output because, at low power settings, the ALC display 
> shows a *lot* of ALC (all bars lit most of the time) but at 100 watts the 
> ALC display barely flickers which indicates that the mic barely has enough 
> output to drive the rig to 100 watts.
>
> Don K7FJ