Hello Tim At one of our OATS sites we have a pit under a metal hatch in the groundplane, to the rear of the EUT turntable. To do the NSA we put the signal generator down there and connect it back to the control room via a fibre optic/GPIB link. I wrote some software which steps the sig gen through the necessary frequency steps, and drives the RX antenna up and down the 4m mast, taking readings from the receiver every few centimetres. Once the direct connection readings have been taken, and the broadband antennas have been connected, I can set it running and leave it. It takes about 2 hours to collect and analyse the data for the NSA. Of course, such a system can only be implemented once the location of the site is decided.
Yes, doing it manually, especially with dipoles, takes a large slice out of your life! Regards Steve Seller DISCLAIMER NOTICE http://www.yorkemc.co.uk/Disclaimer York EMC Services, Market Square, The University of York, Heslington, York, YO10 5DD. VAT Reg No: GB 647 2055 41 Company Reg No: 3075474 York EMC Services Ltd is a Company limited by guarantee and not having share capital. 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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
