John, I have no specific experience with either product, so my comments are a bit more general.
Schaffner and Dynamic Sciences have been in the business for a long time. I recall using a DSI receiver when I worked for the Navy back in the late 1970s, so they are not a newcomer to receiver design. At that time they had a new receiver that used TTL in its logic circuits and I swear you could cook an egg on the heat sink for the power supply. Times have changed. Schaffner has been building and selling receivers for some time, as well. I would recommend having samples of both products provided for your evaluation at your laboratory. Have any control software that you are considering purchasing with them included in the demonstration. Try to arrange for a multi-day (week?) demo period so you can really get a feel for how the equipment and software works in your lab environment. A factory demo and your experience may yield completely different results. Check the specifications for both receivers carefully against the requirements in CISPR 16-1. I'm sure that both are compliant, but satisfy yourself. Receivers are an expensive investment and you need to be convinced that the one you buy will meet your needs. Make sure that you won't be building products with high enough clock speeds to obsolete the receiver before it is fully depreciated. A 5.4 GHz clock will cause you to test to 27 GHz (upper end of the DSI box) and a 5.41 GHz clock will have you looking for a new receiver. The Schaffner box will run out of steam when you exceed 3.6 GHz. I don't know what your product offerings are, or what the plans for the future are, but you should keep this in mind. Then again, if you're doing that work in a chamber and this is strictly for the OATS, this shouldn't be an issue. Have fun. It's always fun spending someone else's money, isn't it? Ghery Pettit From: John Jankowski [mailto:[email protected]] Sent: Wednesday, August 27, 2003 11:33 AM To: [email protected] Subject: EMI receiver for OATS List members, I am in the process of expanding the capabilities of our Open Area Test Site and have been searching for a replacement receiver. During the IEEE EMC Symposium in Boston, I reviewed two models; Schaffner - SMR 4518 ( 9khz-18Ghz) Dynamic Sciences International - DSI 600 Series (20Hz - 27Ghz) Would any members care to comment on their observation of these two new receivers or, if there are owners of such, I would like to hear of your success with either of these models. I would appreciate any general feedback about the company DSI, as I'm not familiar with this firm. Please contact me off-list or by phone with all responses.... Thanks in advance! John Jankowski Computer Network Technology 609-518-4534 [email protected] This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
