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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