[Elecraft] [KPA500] Rear power switch thread

[Mark Stennett]

Here in Texas we get a lot of lightning storms that wreak havoc on our 
electrical grid. In the 12 years I've lived here, I have lost 2 
televisions, a microwave and a range to lightning related power issues.

I physically disconnect my K Line when not in use.


On 11/29/2011 10:26 PM, Ron D'Eau Claire wrote:
> Like the K3, the POWER switch on the KPA500 requires that mains voltage be
> applied so the processor and front panel logic is "live". The difference is
> that rear panel switch on the KPA500. It may be left on indefinitely. Like
> the K3, there is a very small parasitic power drain required to keep the
> front panel logic live so the front panel power switch will operate.
>
> It sounds like some Hams are taking the concept of keeping all parasitic
> power drains in their homes to the minimum: unplugging TV sets, microwaves,
> (newer) washing machines, etc., when they aren't actually in use to avoid
> this parasitic drain. It does add up and totals a significant amount of the
> electrical power demand, nationally. I would assume they are unplugging the
> K3 and any other similar Ham gear as well.
>
> Personally, I simply kill the main supply power line to the station. That
> does the same thing with one switch.
>
> 73,
>
> Ron AC7AC
>
>
>
> -----Original Message-----
> I don't have a KPA500 and wondering what the deal is with turning off the
> back power switch.  Seems to me that if is was to be turned off every time
> that it would have been placed on the front.  I don't want to have to go
> around the back of my station every time I get up and leave.  Does it say in
>
> the manual to turn it off?  Is there a difference in using that switch vs.
> turning off "power strip" feeding it?  This topic has been going on for a
> while.  What gives?
>
> 73, de Jim KG0KP
>
>
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