During the course of our
systems engineering work on 2.4 GHz spread spectrum
telemetry systems, we discovered that microwave oven
emissions can have a significant impact on the
performance of the radio link.
In order to carry on our work
we had to measure and characterise these emissions.
The measurements showed that the oven leakage output
follows a complex time/frequency trajectory whose
characteristics may be dependent on the contents of
the oven and the rotation of the turntable and/or the
'paddlewheel' found in many ovens. These measurements
helped to design a communication signal structure
which could more readily operate in the presence of
oven interference.
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