The VK4YE 1 Kilowatt Linear Amplifier.

Two Tone Testing.

A thorough testing procedure requires access to a two tone oscillator, oscilloscope and heavy duty dummy load. Two tone testing will give a completely different set of readings and power output figures compared to single tone testing. Under this testing procedure, 200W of mean power indicated on a power meter is equivalent to 400W pep. Test results giving a mean power output of 200W required a DC input of 515W. Efficiency is just under 40%.

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