My experience is that once the power has been managed as Don say's, there is no
more ramp-up.  I use only CW and after the ramp-up the first dit is at full
output.

I'm using the KPA500 here.

Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member

On Sat, 02 Jun 2012 15:21:31 +0000, Brian Alsop <als...@nc.rr.com> wrote:

>Guys,
>
>I may be imagining things, but this effect seems to always be there with 
>my K3.  My perception is that it is not just limited after band changes 
>or power level changes.  It is especially evident when running a big amp 
>that has a fast display of output power.
>
>Where it may matter is in contesting.  You want them to copy the first 
>letter of your call right the first time.  You want the first dit/dah to 
>be loud.
>
>Yes, my K3 has been through the RF power calibration.
>
>I'm going to have to look closer at this.
>
>73 de Brian/K3KO
>
>
>
>On 6/2/2012 15:08, Don Wilhelm wrote:
>> What Roy says is true.  The K2 and K3 use a closed control loop to
>> adjust power output.  It starts out at low power after a power on or a
>> band change or a change in the power requested - the actual output power
>> is measured and compared to the power requested, and the drive is
>> adjusted until the two match.
>> It does not take long to come up to the requested power level, but it
>> will not be with the first dit on CW nor the first few syllables on SSB.
>>
>> 73,
>> Don W3FPR
>>
>> On 6/2/2012 11:01 AM, Roy Morris wrote:
>>> I do not believe there is anything wrong with either K2s or K3s that do not
>>> put out a full 100 watts on the first SSB syllable.  I have built two K2s
>>> and two K3s, and the ALC action is very similar on all of them.  Save your
>>> time trying to do another transmit calibration.  I don't think it will solve
>>> anything.  If it ain't broke, don't fix it!  Roy  W4WFB
>>>
>
>
>-----
>No virus found in this message.
>Checked by AVG - www.avg.com
>Version: 2012.0.2178 / Virus Database: 2425/5039 - Release Date: 06/01/12
>
>______________________________________________________________
>Elecraft mailing list
>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:Elecraft@mailman.qth.net
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Reply via email to