I had been using a power pole strip to power everything. After
seeing some discussion on this topic some time ago I found that in
the string of 3 power pole connections in my setup at the time I was
seeing around a 1 volt drop in the voltage on the K3 metering
between receive and 100 watts keydown. That voltage drop was
confirmed by my VOM so I wired the rig directly to the supply and
the voltage drop was less than 0.25 volts. That is the way my rigs
and VHF/UHF amps will be connected from now on with only a fuse
inline. The low current stuff will stay on the power pole strip
where they do just fine lighting up lights and stuff.
On Sat, Apr 25, 2020, 09:16 Don Schroder <donandde...@hotmail.com
<mailto:donandde...@hotmail.com>> 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:anyone1...@gmail.com
<mailto:anyone1...@gmail.com>>
Sent: Saturday, April 25, 2020 9:03 AM
To: Bob McGraw K4TAX<mailto:rmcg...@blomand.net
<mailto:rmcg...@blomand.net>>
Cc: Elecraft@mailman.qth.net
<mailto:Elecraft@mailman.qth.net><mailto:Elecraft@mailman.qth.net
<mailto:Elecraft@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 <rmcg...@blomand.net
<mailto:rmcg...@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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