The K3/K3S draws peak current on transmit, and is generally greatest on the higher bands (especially 6M) where efficiency of the output stage is lower. The KAT500 draws max current when tuning. The rest of the time it draws very little current. In general, any PSU that will run the radio will also run low power accessories like the P3 and KAT500.

73, Jim K9YC

On Mon,2/13/2017 12:59 PM, Mike Furrey wrote:
Looking at the specs, the K3s could draw up to 25 amps max, the KAT500 could draw up to 1 
amp max and the Powerwerx supply is rated at 25 amps continuous duty. Sooooo .... It 
"may" be ok.


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