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Re: K3 - Power cable voltage drop

Posted by k6mkf on Dec 26, 2019; 11:39pm
URL: http://elecraft.85.s1.nabble.com/K3-Power-cable-voltage-drop-tp7657290p7657437.html

Hi Keith,

Mine reads 4.96, so should it be set to 5.0 or left alone?

Thanks.

- 73 and good DX de Mike, K6MKF, NCDXC Secretary

> -----Original Message-----
> From: [hidden email] <[hidden email]>
> On Behalf Of Keith Trinity WE6R
> Sent: Thursday, December 26, 2019 15:25
> To: [hidden email]
> Subject: Re: [Elecraft] K3 - Power cable voltage drop
>
> Notes for all;
> Check the K3 config menu item "ADC REF".   If at 5.00 it is probably at
> default.
> (if at 4.00 a glitch occurred, probably during FW update, and will FUBAR
the
> internal metering. Set to 5.00 or read on).
> (I check this during checkout, so if it has been in for Service, it should
be OK).
>
> Higher accuracy of the K3 items like the internal Volt-Meter can be had if
this is
> set properly.
> With a known external meter on Pin 2 to ground of the 15 pin ACCY
connector;
> Go into config menu ADC REF and set it.
>
> Also you can stick your probes into the Anderson connectors at the back of
the
> radio during full power TX to see the actual voltage to the radio.
> (I have a digital LED meter connected  with small wires to the Anderson
supply

> wire right at the back of the radio on my K3 test bench).
> Keith WE6R
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