Dave: I agree with your comments re: testing at 10 V/m, and then falling back to 3 V/m if there is a problem. This is a good way for a client to get "almost free" margin-testing data. I recommend it often to our clients. If you test to 3 V/m, you don't have a clue as to what would happen at 3.1 V/m.
I had to chuckle at your 40 Watt fluorescent tube story! Back in the olden days (as Chief Engineer of a 5000 Watt AM Broadcast station in California, I would often make antenna tuning adjustments with a screwdriver in one hand, and a 4-foot fluorescent bulb in the other. This is REAL RF Engineering! And yes, I work 160 meters too. Regards, Jim Ericson (KG6EK) Acme Testing Company Acme, Washington [email protected] From: "drcuthbert" <[email protected]> To: <[email protected]> Sent: Tuesday, March 04, 2003 7:05 AM Subject: RE: RADIATED IMMUNITY - Some Actual Measurements of FS > > Why not blast the DUT with 10V/m at all frequencies? If it misbehaves in the 3V/m bands then 3V/m could be tried. If you want some high E-field try my house (or another ham's house). I often run fields to the FCC safety limit in my house. When operating 160 meters I can light a 40 watt fluorescent tube by holding it in my hand at the operating position. I believe the peak limit at 1.8 MHz is 500 V/m. The equipment in my house is not affected (well just a little) with the application of a few ferrites and filters. The field in the adjacent neighbors homes is in the tens of volts/m. No complaints yet. Just remember, in words of N6SU "if you can't see it it can't hurt you". > > Dave Cuthbert WX7G > Micron Technology 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
