Re: post from 'shbeard' contains a virus in the attachment

Rook t...@crestaudio.com@majordomo.ieee.org on 10/14/2002 05:53:30 PM Please respond to Ted Rook t...@crestaudio.com Sent by:owner-emc-p...@majordomo.ieee.org To:emc-p...@ieee.org cc: Subject:post from 'shbeard' contains a virus in the attachment my terminal found W32bugbear

question on capacitor discharging

Hello to all, Other than MIL-HDBK-454 which states (as a guide) that high voltage circuits and capacitors should be provided with discharging devices unless they discharge to 30 volts or less within 2 seconds after power removal are there other standards that specify/require capacitors to be

suggestion for 100W audio amp

Hello group, I was hoping that someone could suggest a vendor/model number for an 100 W audio amplifier for use performing DO-160D, change 2, section 18 audio susceptibility testing. I am currently using an old Solar 6552-1A, but sometimes it can't provide the pre-calibrated power (100W) into

RE: ferrite transient voltage/current response

Sorry that I wasn't clear; I typically try to keep my questions general so not to get too detailed about the specific application. And thanks to Bob, Chris and Mike who have responded ... putting it into Chris's words ... I was just trying to find out if ferrites had ratings to prevent them from

ferrite transient voltage/current response

Could someone point me to some good App Note information on the response of and affect on ferrite beads to transient voltage current waveforms? The waveforms are based on the indirect lightning pulses specified in Section 22 of DO-160. Thanks in advance, Susan Beard

pin lightning tests per DO-160D

Can anyone tell me whether the old CS10/CS11 pin vs. cable test rationale applies to DO-160D lightning tests? More directly, if it is known that antenna connections to RF ports will always be made with coaxial cables, is there an exclusion for performing pin tests on RF ports to equipment?

question on measuring bonding impedance

Is there a standard method for measuring AC bonding impedances for electrical bonding? Thanks in advance, Susan Beard --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at:

radiated HIRF testing levels modulations

Please note that the following are personal comments and not those of my employer. I am looking for information both on the environments (assume aircraft) that justify the following levels and the methods for testing. I have been asked to find EMI labs that can test to the following:

recommendations for multiburst/multistroke lightning generators

Can anyone recommend suppliers/models for performing multiple burst multi-stroke lightning tests in accordance with AC 20-136, Boeing and Airbus specs? Thanks in advance, Susan Beard --- This message is from the IEEE EMC Society Product Safety

looking for Wandel Goltermann field strength probe

Does anyone have a phone number or web address for information concerning Wandel Goldermann field intensity probes? I noticed that they supply to Schaffener-Chase, but have not been able to find any reps or info. Thanks in advance, Susan Beard ---

question on verifying absorption of anechoic material

Can anyone point me to a reference for measuring the absorption of anechoic material to verify the requirements as specified in MIL-STD-462D? Thanks, Susan Beard --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc

question on p-static testing of electronics

Can anyone point me to a standardized test procedure for measuring the effects of p-static discharge affecting antenna connected receivers? Thanks, Susan Beard --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc

clarification of DO-160D change 1 section 20 test frequency exclusion

Can someone provide me a clarification of what the following DO-160D change 1 section 20 test frequency exclusion (para 20.3 d.)? This test is not intended to evaluate the normal MOPS RF performance NOR IS THE TEST INTENDED TO EVALUATE RECEIVER PERFORMANCE IN THE PRESENCE OF ANY

questions on strip line current carrying capacity

Does anyone of a good reference for quantifying strip line and its current carrying capacity? Most references I have seen primarily discuss the calculations for characteristic impedance control only. Susan Beard --- This message is from the IEEE EMC

question of flex circuit materials

From an EMC standpoint, are there any flex circuit materials (e.g., kapton vs. polyimide vs. other) that are preferred? Susan Beard --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web