Arun: I was just struck by what you said about "setup a Sea Plane or a salt water based site" . Has anyone ever set up an OATS using salt water as the ground plane? Talk about excellent surface smoothness, easy to level and cheap material, plus simple repair! (Uhh, could we say it fixes itself?)
Just what conductivity would be enough? Could we get enough conductivity before we reach salt saturation? I suppose the upper limit on surface area would be when we get to the point of the wind causing surface ripples. Or gravitational tides. Turntables might be a lot cheaper, too. Just a thin raft that floats. Seriously, has anyone tried this for an OATS? (I seem to recall the US Navy had a really big ship simulator here in San Diego, where they placed scale models of ships on a sheet-steel "sea" in order to model HF wire antennas.) Regards, Ed :-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-): -):-):-):-):-):-):-):-):-):-):-):-):-):-):-) Ed Price ed.pr...@cubic.com Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA. USA 619-505-2780 (Voice) 619-505-1502 (Fax) Military & Avionics EMC Services Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis :-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-): -):-):-):-):-):-):-):-):-):-):-):-):-):-):-) > -----Original Message----- > From: Arun Kaore [SMTP:kao...@sg.adi-limited.com.au] > Sent: Sunday, August 01, 1999 6:05 PM > To: 'emc-p...@majordomo.ieee.org' > Subject: FW: cost effective EMC facility > > > IMHO, there is no cost effective EMC facility, but you don't have to spend > all your bucks all in the one day. A sound and well managed EMC business > growth program could see you through. > > Start off with pre compliance and eventually branch off into formal > compliance (by drafting up a Quality System to ISO 25 or whatever, a few > test procedures and a few Quality and third party Technical Audits) > > Buy a 2nd hand shielded room today with a view to lining it with ferrite > tiles and/or RAM material such that you meet the Radiated Immunity 16 > point > check for immunity and alternative sites 3 m NSA for emissions. Initial RE > prescans could be done here. > > Buy a 26 GHz cheap ($25000/-!!) analyser (without preselector) driven by > software for now and then go for a $100000/- preselectable receiver > suitable > for formal CISPR measurements and also MIL 462 related work. > > Start off with a chicken wire mesh car park OATS and improve later; not > much > hope in Singapore because of the ambients, but you could always go to > Malaysia or setup a Sea Plane or a salt water based site (you will get > very > good NSA, probably won't need NSA). > > Lastly, performing ESD, EFT and Surge tests in a shielded room/ anechoic > chamber will make you very popular among your colleagues because of the > additional filtering within the shielded room. > > > Regards > > Arun Kaore > EMC Engineer > > ADI Limited > Systems Group > Test & Evaluation Centre > Forrester Road, St Marys NSW 2760 > P O Box: 315, St Marys NSW 1790 > > Tel: 61 2 9673 8375 > Fax: 61 2 9673 8321 > Email: kao...@sg.adi-limited.com.au <mailto:kao...@sg.adi-limited.com.au> > > -----Original Message----- > From: Qu Pingyu [SMTP:pin...@ime.org.sg] <mailto:[SMTP:pin...@ime.org.sg]> > > Sent: Friday, 30 July, 1999 18:38 > To: 'emc' > Subject: cost effective EMC facility > > > Hello, everyone: > I posted an question several weeks ago asking about GTEM. Thanks those who > share with me your experience. I may not address my problem very clearly > thus I would like to come back to you one more time. > We are a R & D orgnization in Singapore mainly dealing with semiconductor > industry. Since there are some requirements from our industry partners in > the area of EMC design, we are considering setting up some EMC measurement > capabilities. At the intial stage, we will only consider equipment for > radiated emission/susceptibility testing. Our objective is to evaluate the > EMC performance of the product from our customers, being of PCB level or > system level. Based on those results, we can help our customers to improve > their product EMC design so that their product can pass the final > compliance > testing. The EUT could be small, such as integrated circuits on PCB, but > it > can also be large such as a PC. Due to our budget constraint, I think GTEM > maybe a good choice. Do you guys agree ? If not, any other suggestions ? > Thanks in advance. > Best Regards > Qu Pingyu > > --------- > This message is coming from the emc-pstc discussion list. To cancel your > subscription, send mail to majord...@ieee.org <mailto:majord...@ieee.org> > with the single line: "unsubscribe emc-pstc" (without the quotes). For > help, send mail to ed.pr...@cubic.com <mailto:ed.pr...@cubic.com> , > jim_bac...@monarch.com <mailto:jim_bac...@monarch.com> , ri...@sdd.hp.com > <mailto:ri...@sdd.hp.com> , or roger.volgst...@compaq.com > <mailto:roger.volgst...@compaq.com> (the list administrators). > > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to majord...@ieee.org > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to ed.pr...@cubic.com, > jim_bac...@monarch.com, ri...@sdd.hp.com, or > roger.volgst...@compaq.com (the list administrators). > --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
