Hi Dave,
I run around 100-150 watts out of my KPA500 using 5-7 watts from my K3
with the KPA500 hitting 70C using Olivia during nets. I assume could go
to 250 but never needed that much power. Does not seem to be a problem
with temps above 70c. Also run up to 500w PEP using SSB when needed.
I did hear Wayne say run full power RTTY with no fear.
73, tom w7sua
On 5/3/2020 1:26 PM, Dave Cole wrote:
Hello,
I just got the new MMSSTV software, and will be running a bit of SSTV.
SSTV is 100% duty cycle.
Initial testing here indicates no power level is safe... At 150 watts
the KPA500 reaches 70C pretty fast, in under two minutes, and 70C is my
upper limit for testing... At 500 watts it reaches 70C in about the
same time...
Can I assume the amp is not the most efficient thing in the world at 200
watts?
If the KPA500 can't deal with 100% duty cycle, for two minutes, how does
the K3 deal with 100 watts for two minutes, at 100% duty cycle?
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