[Elecraft] K3 shuts down

[Dave New, N8SBE]

Thanks for that reminder.  I haven't had my K3s on the air doing digital 
for quite a while, although I thought there was a firmware update that 
allowed me to shut off that automatic power calibration at 50W.  I 
remember it being discussed at one time, but I don't recall if it was 
ever released.

Most recently, I've been running FT8 with my KX2/KXPA100 combo when 
camping, and set the output power to 50W with no ill effects.
The KXPA100 PA temperature climbs up to about 56-57C and hovers there 
with the usual 2 x 12 second transmission every minute.  The KXPA100 
fault is triggered at 60C.

73,

-- Dave, N8SBE, Hamshack Hotline 590-0971, HamsOverIP 101018, 
AmateurWire 1348

On 2024-09-02 03:35, Geert Jan de Groot via Elecraft wrote:
>> Also, for digital modes, I run my equipment at half power, max.  So, 
>> for
>> a 100W XCVR, I run it at 50W.
> 
> A gentle reminder that using exactly 50W, or exactly 5W, or exactly 
> 0.5mW (transverter) triggers the power calibration logic in the K3.
> 
> You are well advised to use 48W, or 52W, but not 50W.
> 
> Geert Jan
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