K7FR ran an experiment in the measurements lab at Washington State
University, passing 1kW through a PL259/SO239 pair and measuring the
loss with a calorimeter. He measured 1.8W loss at 30MHz: that's 0.008dB.
At 1750MHz the loss was 39W (0.17dB) and the connector failed. More
His conclusion: "Before this experiment I was paranoid about my
connectors. Since then I have only been concerned with the quality of
the assembly and water ingress"
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