[Elecraft] K3S poor CW keying further investigation

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Nuts, just measure the drop between radio and power supply see if it is reasonable. Mine is 0.25 volts when transmitting.  I run 14.0 out of supply. 
Ray
W8LYJ

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> On Apr 25, 2020, at 07:48, Bob McGraw K4TAX <rmcgraw at blomand.net> wrote:
> 
> As to the RigRunner power pole strip.........PUT IT IN THE TRASH where it belongs.    NEVER NEVER NEVER use a power distribution strip to power a 100 watt radio.   ALWAYS connect the radio direct to the power supply terminals.   NO exceptions!
> 
> 73
> 
> Bob, K4TAX
> 
> 
>> On 4/25/2020 7:13 AM, Chuck Chandler wrote:
>> After more checking, I suspect the internal 100W amp is the common factor
>> in the poor keying characteristics I'm seeing and hearing about from my
>> rig.  I am trying to determine if my power supply is doing it's job.
>> 
>> I'm using a TenTec 963 switching supply rated at 25A continuous.  At rest
>> the K3S panel display shows 13.6V, with full power key down it dips to 11.5
>> or so.  This seems like a lot.  I'm running the power cable thru a
>> RigRunner Powerpole strip.  If I can dig out another power supply from the
>> packed boxes I can wire the K3S directly to the supply.
>> 
>> Is 11.5V at key down enough to cause the slow rise time being reported?
>> 
>> 73 de Chuck, WS1L
>> 
> 
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