Oh well, I need another cup of coffee.    I'll try to do better proof reading.  Can't blame that one on auto-correct!

Cutting to the chase........., measure from the power supply POS terminal to the ACC 12V on the K3 radio.    That is the total voltage drop in the POS DC path.  Then do the same for the NEG terminal of the power supply to the ground terminal on the radio. That is the voltage drop on the NEG DC path.  Add those two together and one has the total voltage drop.  Now, step by step, isolate where each amount of voltage drop occurs.

Anytime over 0.5 volts total voltage drop occurs, something needs attention.   Thus DC Pos should be less than 0.25 volt drop and DC Neg should be less than 0.25 volts.  For a total of 0.5 volts drop at the radio.

73

Bob, K4TAX


On 4/26/2020 11:22 AM, Adrian wrote:
I got a good chuckle out of that one Bob, happens to me often


take 2 >
The calculation is simple:    E = I x R      current multiplied by resistance equals the voltage.



The calculation is simple:    E = I x R      current multiplied by amps equal voltage.

73

Bob, K4TAX




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