I have just completed debugging of a unit that failed radiated immunity by using a biconical antenna, a coaxial loop antenna, an HP8593E spectrum analyzer, an HP8447A pre-amplifier, an HP8647A signal generator and a screen room. I was able to use the signal generator to provide a 10dBm level at the failing frequency. I first used the bicon to repeat the fault found in the test lab to repeat the response found at the test lab. I had to place the antenna in close proximity to the unit under test. After this fault was verified, the coaxial loop probe was used to isolate the problem area on the chassis. All measurments were relative but very productive in pinpointing the problem area.
-----Original Message----- From: John Juhasz [mailto:[email protected]] Sent: Wednesday, July 12, 2000 11:24 AM To: '[email protected]' Subject: Radiated Immunity Having a Radiated Immunity problem (300-320MHz - 3V/M ) that I need to troubleshoot . . . I don't have a screen room to work in . . . I want to troubleshoot down to the circuit or component level . . . is there any type of 'probe' that can be used instead of creating a full-field in a chamber? Any ideas . . . ? Haven't had a problem like this yet . . . John Juhasz Fiber Options Bohemia, NY 631-419-2324 ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: [email protected] Michael Garretson: [email protected] For policy questions, send mail to: Richard Nute: [email protected]
