[Elecraft] Recommended Power for K3/100 for 100% Data Modes

[Dave Cole]

I believe one of the tests Elecraft performs is a 10 minute keydown at 
100 Watts.  I hope someone from Elecraft comes in and verifies that...

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources

On 5/22/20 4:21 PM, Nr4c wrote:
> I think you can run 100 Watts. You might use the temp monitor on lcd display and watch PA TEMP.  If it starts getting close to 70 - 80 degrees C it’s time to take a break.
> 
> Many manually set fans to level 2 and just let them run.
> 
> If the radio gets too hot it will cut back the power in self protection.
> 
> Don’t be afraid, the K3 is rugged and is made to not need coddling(so).
> 
> Sent from my iPhone
> ...nr4c. bill
> 
> 
>> On May 22, 2020, at 7:05 PM, Eric KG6MZS <k3 at hollywoodtitle.com> wrote:
>>
>> Hello All,
>>
>> I’ve searched the reflector's archives and haven’t found anything on this, so here goes.
>>
>> I have an aging K3/1000 (sn 3045) and I wish to preserve its operating life.  Up until now I’ve mostly operated in SSB and BPSK.  Recently I’ve been exploring some 100% duty cycle modes and I am wondering what would be a prudent power level for these modes.  Or perhaps there is a temperature limit that should be observed on the KPA3’s heat sink?
>>
>> Suggestions?
>>
>> TIA,
>> Eric Fitzgerald
>> KG6MZS
>>
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