[Elecraft] Fan speed

Eric Swartz - WA6HHQ, Elecraft eric at elecraft.com
Thu May 30 11:32:25 EDT 2019


The KPA1500 uses a more aggressive fan speed table for 6M, versus the lower HF 
bands. In general there is more immediate component heating on 6M for a given 
power (especially in the LPF and other areas outside of the PA transistors), so 
we start the fans at a lower heatsink temp.

Also, when using very high dissipation modes like FT8 and JT65 on 6M at 
1000-1500 W, we strongly recommend setting the minimum fan speed to at least 1 
or 2.

73,
Eric
/elecraft.com/
====

On 5/29/2019 1:08 PM, Richard Zalewski wrote:
> Sorry for that...talking about my KPA1500.
>>> On May 29, 2019, at 10:17 AM, Richard Zalewski <dick.w7zr at gmail.com>
>> wrote:
>>
>> Is fan speed band dependent as well as temp?  My fan was 0 but when I
>> switched to 6m it ramped up to 2 immediately.  Usually anything under 45C
>> no fan but on 6m the fan stayed on until it got to 35C.
>>
>>



More information about the Elecraft mailing list