Re: [PSES] Filter Issues [General Use]

Hi all Thanks for the replies, The filter is a ETS Lindgren Filter N6003 installed on the EMC Chamber wall. The filter is defined as a 4 line 230/400V 32A <450Hz filter. When used for DEF STAN EMC measurements and loaded by the 4 of 10uF prior to the 5uH LISNs it appears to be OK, however when

[PSES] Filter Issues [General Use]

Hi members Can anyone offer some advice. Have issues with EMC Chamber RF Filter 3 phase. Using 115V 400Hz single phase supply from a static convertor, filter looks like it is saturating. Ambient levels failing between 6kHz to 150kHz. Voltage of phase at static convertor 115.8Vrms but at EUT on

[PSES] Replacement Antenna [General Use]

Hi All Looking to replace a 94455-1 Bicon Antenna, does anyone know of a preferred replacement? Regards Andy Andrew Price Integrated Sensing & Protection (ISP) Prinicpal Environmental Engineer (EMC) Leonardo UK Sigma House,

Re: [PSES] 41 " Rod Antennas [General Use]

Thanks to all that replied. The information will help decide whether to invest in a replacement active rod antenna or fin a better amplifier with a better noise figure. Regards Andy Andrew Price Land & Naval Defence Electronics Division Prinicpal

Re: [PSES] Calibration Load [General Use]

Thanks to those that replied. I will try what you suggest Regards Andy Andrew Price Land & Naval Defence Electronics Division Prinicpal Environmental Engineer (EMC) Leonardo MW Ltd Sigma House, Christopher Martin Rd, Basildon SS14

[PSES] Calibration Load [General Use]

Hi All Can anyone tell me the ideal value of the load resistor used for verifying the current in CE101 of MIL-STD-461G. Regards Andy Andrew Price Land & Naval Defence Electronics Division Prinicpal Environmental Engineer (EMC) Leonardo MW Ltd

[PSES] 41 " Rod Antennas [General Use]

Hi all, Is there anyone who has done an ambient noise floor analysis of 41" rod antennas to determine those with the best performance. This question comes as a result of the changes to DEF STAN 59-411 Part 3 Issue 3 where DRE03.B is being incorporated into DRE01.B and the limit over the

[PSES] 95055-1 Technical Data [General Use]

Hi all, Can anyone help? Looking for technical data on a 95055-1 magnetic Loop. Regards Andy Andrew Price Land & Naval Defence Electronics Division Prinicpal Environmental Engineer (EMC) Leonardo MW Ltd Sigma House, Christopher

[PSES] CE106 Test set-up info [General Use]

Hi all. Can anyone help with this query? Doing a CE106 test, have had to insert 60dB attenuation (40dB + 20dB) in the antenna output to help prevent the receiver input overloading. These values incorporated into the measurement software. Also have had to include a Hi Pass Filter 780MHz to

Re: [PSES] LED Spots in EMC Chamber [General Use]

Thanks everyone for the replies. I will pass this information onto the person who raised this query. >From the information I was provided the LED Spots issue a broadband noise seen >as rise in the ambient noise floor over the frequency range 30MHz to 180MHz, >there is some minor noise between

[PSES] Use of LED Spots in EMC Chambers [General Use]

Hi all. Has anyone had experience with using LED Spot lamps in EMC Chambers? What types/manufacturers would be recommended? Would appreciate help in trying to solve someone's problems with noise during radiated emissions. Test Facility has just had all their chambers converted to LED Spots and

Re: [PSES] EMI Software [General Use]

Hi all, I have used various versions of Emission Software including HP, Emtest, EMCHire, Labview, Emiscan, Qinetiq own software, and R EMC32. Of these if you use R EMI receivers then the EMC32 is probably the best. If you have other types of receivers than you should use the best for that

Re: [PSES] Chamber grounding [General Use]

Thanks all for the replies. It seems that there is some divided opinion. Some of the test houses I have spoken to state that they definitely ground their chambers via ground spikes. This is to remove low frequency noise that causes issues with the low frequency emc tests that are required in

Re: [PSES] Chamber grounding [General Use]

Hi All Which is the best to use? Ground each EMC chamber via an earth spike or back to the transformer of the supply to the building? Which is best practice? Regards Andy Andrew Price Land & Naval Defence Electronics Division Prinicpal Environmental

[PSES] Calculating Modulated Power Output. [General Use]

Hi all. I hope one of the RF engineers can help with this. When calculating ERP you use the Tx power either in dBW or W and the antenna gain in dBi. So when you have pulse modulation, example 9.3GHz, 38.5dBW (7676.89W) ERP at a duty cycle of 13%, do you calculate the modulated power level by

Re: [PSES] CE Compliance [General Use]

Thanks everyone for your help. Regards Andy Andrew Price Land & Naval Defence Electronics Division Prinicpal Environmental Engineer (EMC) Leonardo MW Ltd Sigma House, Christopher Martin Rd, Basildon SS14 3EL, UK Tel

[PSES] CE Compliance [General Use]

Hi all, Can a statement that a product is compliant with the EMC Directive 2004/108/EC or 2014/30/EU in the support documentation be regarded as proof of conformity or does there have to be a Declaration of Conformity which states compliance with the Directive via appropriate standards??? Also

Re: [PSES] RF CS High Current Test Level [General Use]

Ken There is no requirement that is flat but there are a few that require such a high level 1A, 1.7A, 3.98A over the range 2MHz to 30MHz. Regards Andy Andrew Price Land & Naval Defence Electronics Division Prinicpal Environmental Engineer (EMC)

[PSES] CS High Current Test Level [General Use]

Rich AS far as I am aware there is only one Bulk Current Injection Probe available for doing high level injection. It was origonally designed by a Mr Dave Herke at Qinetiq and sold through Schaffner Chase, later Teseq. The probe in question is a CIP-9136A. These are made to order. There are

[PSES] No Postings?? [General Use]

Hi there Group For some reason it appears that I am not getting any postings from the forum? Does anyone know why this as occurred? Regards Andy Andrew Price Land & Naval Defence Electronics Division Prinicpal Environmental Engineer (EMC)

[PSES] Purchasing Australian Defence Standards [General Use]

Hi All Anyone know how we can purchase the following Australian Defence Standards: DEF (AUST) 5681 DEF (AUST)5168 Issue 2 AS/NZS 60529-2004 Need these urgently. Regards Andy Andrew Price Land & Naval Defence Electronics Division Prinicpal Environmental

[PSES] Passive Loop Emissions [General Use]

Hi All Thanks for all your help. I had a reply from R which stated that by changing the units in the Transducer Correction Table to dBuA/m and then entering the Loop Antenna Values (dBS/m) into the table the software will automatically correct the result when the measurement is carried out.

[PSES] Passive Loop Emissions [General Use]

Hi All I need some help in obtaining the correct result. The customer has requested an extended magnetic field emission test over the range 100kHz to 2MHz with a limit defined in dBpT. The antenna to be used is an EMCO 6512 which has it correction factors provided in dBS/m which the emission

[PSES] Automated vehicles [General Use]

Hi all, Is this a case of Total Recall Johnny Cabs Is this going to be a case of Software commands versus human intervention and who or what gets the higher priority. Also there is going to be a great deal of electronic packages, all round cameras, lane sensors, range lasers, Doppler and so

[PSES] Uncertainty Measurement Calculations [General Use]

Hi all Can anyone shed some light on working up the Uncertainty Measurement Calculations based on UKAS Lab34 for MIL-STD-461 CS115 and CS116. I need to show the uncertainty values for these tests as follows: Uncertainty in overall test level = 2.2dB, Uncertainty in time measurement = 1.91%,