ETS-Lindgren 7405 E & H Near Field Probe Set - Manual (Page 48)

48 Common Diagnostic Techniques www.ets-lindgren.com
3. The technique was improperly applied.
4. An outside factor is involved, such as a second source radiating at the
same frequency.
Example: A solution that worked in the lab and on the range before
10:00 AM failed later in the day.
Analysis revealed that the rise in temperature was affecting the
values of decoupling capacitors, making them less effective at
higher temperatures.