[Elecraft] Voltage drop in power cable

[Joe]

For the purest, a possible fix would be to use a power supply that uses 
sense leads to regulate the output voltage like my old Lambda power 
supply does. I don't use the Lambda for the ham shack, but this would 
solve the problem. The sense leads would be connected as close to the 
transceiver as possible. They send a sample of the voltage at that point 
back to the power supply so the power supply can properly regulate the 
voltage at that point. The sense wires are typically small gauge wire 
because they don't carry much current at all. For safety, the sense lead 
should be fused at the voltage source. I would only use the supply to 
power the transceiver, or make sure all equipment is powered from the 
same point as the transceiver to avoid over-voltage to other equipment.

Joe, K1ike