[Elecraft] K3S poor CW keying further investigation
Victor Rosenthal
k2vco.vic at gmail.com
Sat Apr 25 15:56:51 EDT 2020
Power poles are fine, if they are installed according to directions. Rig
runners are OK for accessories and QRP rigs, but if your K2 has the
amplifier it should be connected directly to the power supply.
73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
On 25/04/2020 17:15, Don Schroder wrote:
> Bob,
>
> Is it safe to run my K2 using Anderson Power Pole connections, and/or RigRunner equipment?
>
> For my info, what is the reason for NOT using them?
>
> I’m rewiring, and I want to do it right!
>
> Gunny, KE0PVQ
>
> Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
>
> From: Gmail<mailto:anyone1545 at gmail.com>
> Sent: Saturday, April 25, 2020 9:03 AM
> To: Bob McGraw K4TAX<mailto:rmcgraw at blomand.net>
> Cc: Elecraft at mailman.qth.net<mailto:Elecraft at mailman.qth.net>
> Subject: Re: [Elecraft] K3S poor CW keying further investigation
>
> 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
>
> Sent from my iPad
>
>> 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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