[Elecraft] K3/100 Voltage Drop when transmitting

[donovanf at starpower.net]

Hi Mike, 

What are your voltage readings at the power supply end of your 
six foot power cords? 


None of my K3s do behave the way you describe. 


73 
Frank 
W3LPL 


----- Original Message -----

From: "mjpilgrim" <mpilgrim at bellsouth.net> 
To: elecraft at mailman.qth.net 
Sent: Monday, February 25, 2019 6:55:01 PM 
Subject: [Elecraft] K3/100 Voltage Drop when transmitting 

At first i suspected my Solar power system which was installed a year ago, 
but now I plugged my K3 S/N 7317 directly into my 25A switching DC power 
supply, and when key down, 100W in CW, on the internal K3 Power Meter i see 
a voltage drop from 13.6 to 12.0VDC. My power cord is a 6', 10ga stranded 
copper wire pair with Andersen Power Pole connectors. I have tried three 
separate power cords, all 10ga with power pole connectors, but with no 
change in the voltage drop scenario. If anyone has suggestions of where the 
problem lies, I am all ears. Obviously, when operating SSB the drop is 
present but not as severe. What am i dealing with? Better yet, how do i 
fix it? Thanks in advance. 
Cheers, 
Mike, K5MP 



-- 
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