John: I often use a short wand probe for localizing a response. Just get a foot-long piece of rigid coax, cut about 1/4" of the shield off of one end and put a connector on the other end. Connect the probe to your signal generator using any convenient length of flexible coax. Set your generator to max output (maybe +13dBm), then scan the board for responses. As you home in on the response, you may need to reduce the generator output. You can make the probe a bit safer by putting a length of heat-shrink tubing over the rigid coax. Ed
:-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-) Ed Price [email protected] Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA. USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military & Avionics EMC Services Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis :-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-) -----Original Message----- From: John Juhasz [mailto:[email protected]] Sent: Wednesday, July 12, 2000 8:24 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]
