[Elecraft] K3S poor CW keying further investigation

[Bill Frantz]

The short answer is that too much voltage drop on transmit puts 
radios in an operational configuration where they produce more 
IMD and other bad things.

Any connection in the power supply will introduce additional 
resistance. At the current levels used during 100W transmission, 
it doesn't take much to cause a significant voltage drop.

For example: 20 amps with a 0.05 ohm resistance. E=IR. 
20*0.05==>1 volt.

When you use a RigRunner system, you have added 2 additional 
PowerPole connectors plus the resistance of the automotive blade 
type fuse. That is not good.

To find out what is happening in your system, use a volt meter 
to measure the voltage drop over every connection. You might be 
surprised. I was surprised at the cost of a single automotive 
blade fuse in my solar+battery system. And all of them add up.

73 Bill AE6JV

On 4/25/20 at 10:15 AM, donanddeena at hotmail.com (Don Schroder) wrote:

>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!
----------------------------------------------------
Bill Frantz        | Art is how we decorate space,
408-348-7900       | music is how we decorate time.
www.pwpconsult.com |          -Jean-Michel Basquiat