[Elecraft] Re: K3 Power

[wayne burdick]

On May 2, 2007, at 6:49 PM, Thom LaCosta wrote:

> The K3 FaQ states
>
> What are the power supply requirements?
>
> The K3 DC voltage required is 13.8 V nominal/recommended; 11 V 
> recommended minimum; transmit disabled below 10 V; system shutdown 
> below 9.0 V.
>
> How many amps?

Estimates:

About 0.9 A receive (minimum, not counting enabled options), 3 A @ 10W, 
20 A @ 100W. We'll refine these after further testing.


> Is there a suggested supply?

Not yet, but I'd use a 4-6 amp supply for 10 W and 20-25A for 100 W. To 
minimize noise, use a linear supply or a switcher. If you have control 
over the voltage, set it to 13 to 13.8 V.


>
> If the rig is supplied with power pole connections, can one purchase 
> the mating cable that would be used to connect the rig to the power 
> supply?

The rig comes with a mating cable that has properly installed APP 
connectors at one end. Note that APP (Anderson Power Pole) connectors 
are quite rugged, and we've never seen a failure in any of our products 
that use them.

73,
Wayne
N6KR


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