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 <[email protected]> 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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