[Elecraft] Suggested Enhancement for KPA-1500

[Fred Kemmerer]

Thank you, Mike, for the helpful suggestion. I do something similar here. The problem is that it's easy to forget that you have increased the fan speed during long idle periods when you are not in the same room as the amplifier. This results in unnecessary wear on the fans. I'd like to have the benefits of the automatic fan curve but also to have a choice of more aggressive automatic fan curves to handle high duty cycle modes like FT8, etc.

Best and 73,
 
Fred (AB1OC)
ARISS Mentor and Telebridge Station
 
ab1oc at arrl.net
Visit Nashua ARS Website – https://www.n1fd.org <https://www.n1fd.org/>
Visit our Blog – https://stationproject.blog <https://stationproject.blog/>

On 3/12/21, 9:06 AM, "Mike Cizek W0VTT" <mgcizek at gmail.com> wrote:

    Hello Fred,

    I use the programmable function keys for this:

    PF1=  ^fc2;   
    PF2=  ^fc0;

    Fan speed 2 is usually enough to keep the heatsink temp below 70C.
    ----
    73,
    Mike Cizek W0VTT

    -----Original Message-----
    From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On Behalf Of Fred Kemmerer
    Sent: Friday, 12 March, 2021 07:53
    To: elecraft at mailman.qth.net
    Subject: [Elecraft] Suggested Enhancement for KPA-1500

    I have a KPA-1500 amp in our station, and I use it on a daily basis in a remote configuration to operate our station. Fan noise is not an issue here because we are not in the same location as the amplifier. Further, we do mostly digital modes (MSK144, FT8, Q65, etc.) which are high duty cycle. I mostly use the remote app to force the fan speed to a higher level than the factory fan curve to help keep the amp cool. It would be nice if the KPA-1500 FW had a few fan profiles to choose from to help keep the amp cool when running high duty cycle modes. This way, operators such as myself who do a lot of high-duty cycle modes could keep their KPA-1500’s cooler and extend the life of the amplifier.

    Best and 73,

    Fred (AB1OC)
    President, Nashua Area Radio Society

    ARISS Mentor and Telebridge Station

    ab1oc at arrl.net<mailto:ab1oc at arrl.net>
    Visit Nashua ARS Website – https://www.n1fd.org<https://www.n1fd.org/>
    Visit our Blog – https://stationproject.blog<https://stationproject.blog/>
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