[Elecraft] K3 Fan Settings

[Irwin Darack]

Thanks. I will reset the PA Temp to a lower setting. I am finding that once
the PA temp gets to 27C, it shuts the 100w amp off and I only get 10W out
of the radio until it cools down. Even at 70W output in RTTY, I should be
able to keep the temp down with the fans? I am wondering if I have
something set wrong?

Irwin KD3TB

On Saturday, January 2, 2016, Don Wilhelm <w3fpr at embarqmail.com> wrote:

> Irwin,
>
> Yes, I think that PA Temp setting *may* be too high, but it 'all depends'.
> The PA Temp indication will follow the actual temperature of the heatsink,
> so if your K3 has been on for a while, that 27 degC may be normal.
> Follow the instructions in the manual to set the temperature.
> First turn off the K3 and leave it off until the heatsink acclimates to
> room temperature (at least 15 minutes, I recommend 30 minutes).
> Then turn it on and go to the PA TEMP menu - set it to the room
> temperature in degC.  For a 73 degF room, that would be 23 degC.
>
> If I recall, the fan will not turn on until the PA Temp reaches 40 degC.
>
> If you want the fan to come on sooner, set the PA Temp to a higher value.
>
> 73,
> Don W3FPR
>
> On 1/2/2016 4:55 PM, Irwin Darack wrote:
>
>> How do I set the radio to turn on the fans when then 100 w amp temp gets
>> to
>> a specific temperature.  I am playing around with the RTTY contest -
>> running 70 watts output into a tuned antenna.
>>
>> With KPA3 set to NOR, the fans do not seem to turn on, even when the 100W
>> amp gets to high. I know the fans are working because when I set KPA3 to
>> FN
>> 1 to 4, then fans run continuously at the appropriate speed.
>>
>> PA temp is set to 27C.  Should this be lower?
>>
>>
>>
>

-- 
Irwin KD3TB