[Elecraft] KPA500 - Fan running fast

[Jack Brindle]

Rick;

I am suspecting that the remote software isn’t checking for fan control properly.

The ^FC; command can both set and read the fan setting; the remote software
should certainly be reading it. There is a command that has not yet been added
to the KPA500 Programmer’s document to report fan speed. It is:
^FS;
The response will be:
^FSn;
where n is an integer from 0 to 6 indicating the current fan speed.

The Fan Control setting is saved in EEPROM and is sticky. It will be preserved
across power cycles.

And now I will spend some of my holidays updating the KPA programmer’s reference. 
It is a far better experience than going to the mall…

73!

Jack, W6FB

> On Dec 24, 2017, at 2:28 PM, Rick Tavan <rick at tavan.com> wrote:
> 
> Yes, I think I've seen something like that but wasn't able to characterize
> it succinctly. I often set the fan on 1 or 2 when operating remotely. If I
> power cycle the amp, it seems to come up with KPA500 Remote saying the fan
> is on 0 when in fact it's still on 1 or 2 ... I think. Two possibilities:
> 
>   1. It might be best to reset the fan to zero when it powers up. Then the
>   KPA500 Remote display would be correct, albeit only by coincidence. I don't
>   know how many people prefer the fan setting to persist through power
>   cycles, though.
>   2. It might be best for KPA500 Remote to read the current fan setting at
>   power up and display it correctly intentionally. I don't know if that
>   setting is readable, though.
> 
> 73,
> 
> /Rick N6XI
> 
> 
> Rick Tavan
> Truckee, CA
> 
> On Sun, Dec 24, 2017 at 9:32 AM, Michael Walker <va3mw at portcredit.net>
> wrote:
> 
>> I run my KPA500 remotely... very remotely
>> 
>> There are times when I am running at full power in a carrier mode that I
>> turn the fan on high manually.  Which is pretty funny when it is blowing
>> -10C air through it.
>> 
>> Then, when I am done, I turn it down.
>> 
>> But.. there are times when I actually get to the remote station and find
>> that that fan is still running at high speed even though all the remote
>> controls show it at low speed.
>> 
>> Has anyone else notices this?
>> 
>> Mike va3mw
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