Our division is in the process of constructing a new building. I have been told that I will be given a room in which to make pre-compliance radiated emissions measurements. However, ferrite tiles or cones are out of the question (I have been told that I can hang "chicken-wire" on the walls if I want to).
Even though I am restricted in how much money can be spent, I have the luxury of designing in features as the building is being constructed. At a bare minimum, I think we should lay sheet metal or grid-wire on the floor after the concrete is poured. This ground plane should be grounded at each corner by ground rods. I am thinking that if there is no steel framework near the room, this may provide fairly good results. I would appreciate any recommendations on other cheap features that I can design in while the building is under construction. Also, what is the minimum size the room should be? How about power wiring in the walls and in the ceiling. Should any measures be taken to prevent radiated energy from coupling into power wiring? Perfection is not the key issue here: repeatability is. We have a local certified lab that I can compare my measurements with. Once the room is complete, I can repeat my measurements at the certified lab and develop the necessary correction factors. By the way, my product is dc powered shelf-level telecom equipment. Again, any advice will be appreciated. Thanks in advance. Allen Tudor, Compliance Engineer PairGain Technologies tel: (919)875-3382 2431-153 Spring Forest Rd. fax: (919)876-1817 Raleigh, NC 27615 email: [email protected] --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
