Hi Everyone, I have an update on that 500-900 mv spike at 50MHz that we encountered on our power lead. Attempts to alleviate the problem outside the power supply, by the use of torroids and adding ground connections did not help as much as needed, so we immediately turned our attention to the power supply itself, which was the suspicious source from day one with us, as well as most of the helpful comments I received from all of you. We eventually isolated a power supply from the unit, and performed many different measurements under different resistive loads, all with the same result.. the pulse remained at 500-900mv at approximately 50MHz. We are now working closely with the ps manufacturer to alleviate the problem. Many thanks for all the helpful comments and suggestions. It saved a lot of time for us to know that our suspicions that the ps was the main culprit was justified, even with the magnitude and frequency involved.
Regards, Bob Tims Standards and Compliance [email protected] The opinions expressed in this correspondence in no way reflect the opinions of Ericsson Inc.
