Making the measurement in a rural area or basement can help. Here is one major issue: Ambient signals (that is, signals from external sources like AM & FM broadcast, television, two-way radios, military transmitters and mobile phone and wireless communications) can mask the harmonics from the product, unless you can test in a shielded room. Of course, I like to give myself about 6 dB of margin, just to lower the risk of failing in a real chamber. I’ve been very successful using conference rooms (or better) basements to set up a simple 3m measurement range for confirming pass/fail data. True…most semi-anechoic chambers are very expensive. Any recommendations for the room used for radiated pre-compliance tests?Ī. Most folks don’t have access to a semi-anechoic chamber. This posting will address questions on Pre-Compliance Testing for Radiated Emissions. The questions have been edited for clarity. I’ll try to include my assumptions in the answers. Be advised that for many questions pertaining to EMC, the best answer is, “it depends”, so there may not be one answer for all cases.
As I mentioned in the previous two postings, I’ve grouped them by topic and will be answering them all the best I can.
If you missed the webinar, you may go here to download a copy of the slides and listen to the webinar “on-demand”.
Thanks for all the great questions presented following my recent EMC webinar, sponsored by Rohde & Schwarz and hosted by UBM TechOnline. Questions on EMC pre-compliance testing for radiated emissions Agilent 8722ES On Sale at BRL Test $26,900Įnter your email address to follow this blog and receive notifications of new posts by email.BRL Test has Ophir RF 5084 Amplifiers! $5,500.
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