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MIL-STD-461F Presentation
Introduction; MIL-STD-461F
Objective :
Review MIL-STD-461F revision
Provide information regarding current ideas to be incorporated into MIL-STD-461G
Provide information for PAR 1688, pertaining to Modules and Sub-components based from
MIL-STD-461 tests and procedures
MIL-STD-461F Presen
MIL-STD-461F
Test I.D.
General
Requirements
CE101
Section/Table Figure
Page
Change Description Summary
4.2.7
Revisions or changes to module equipment needs to be re-validated per standard.
This applies to form, fit and function (plug n- play) replacement
4.3.10.2 and 40.3.10.2
14
Test Software description is required, minimum for commercial s/w = manufacturer,
model and revision
4.3.10.3.1 and
40.3.10.3
14
Table II Bandwidth and measurement time, authorized max. hold and multiple scan as
long as the total sweeps times are equal to or greater than values within table.
4.3.10.4.3, Table III, and
Table A-1
15
Thresholds of susceptibility, added comments stating susceptibility is not in
conformance with standard and must be documented
Table IV and 50.11
25
Added CS106
Table V
26
Surface Ships and subs requires CE101.
Added CS106; and subs will require limited CS116 & RS101
5.4.1
27
Applicability for surface ships was added
MIL-STD-461F Presen
MIL-STD-461F
Test I.D.
Section/Table Figure
Page
Change Description Summary
CE106
5.6.1
40
Better description of the 2&3 harmonic suppression
CS101
5.7.3.4
48
CS101, Calibration to max power level limit and ensure no degradation from ripply
voltages
Added CS106 requirement and increased Section numbers for standard.
Appendix adds discussion regarding CS106
CS106
5.11. and 50.11
59
CS109
5.12.1
66
CS106, Conducted Susceptibility, Transient requirement pertains to
Power Leads only
Applicable to surface ship equipment that have an operating frequency 100 kHz
and have the sensitivity to measure 1V
CS106 Pulse
MIL-STD-461F Presen
MIL-STD-461F
Test I.D.
Section/Table Figure
Page
Change Description Summary
CS114, Ships limit amplitude from 4 kHz to 1 MHz to 77 dBuA. Appendix added
discussion regarding the 77 dBuA Navy requirements
5.13.3.2
70
Figure CS114-1
74
Figure changed to reflect requirements.
Table V
26
CS115, applicability change regarding submarine and surface ships. This is
required only when specified by Procuring Agency. Changed from Limited
to Specified
Table V
26
CS115, applicability change regarding submarine and surface ships. This is
required only when specified by Procuring Agency. Changed from Limited
to Specified
Figure CS116-2
90
CS116, One Limit for everyone - 10 Amp curve
CS114
CS115
CS116
CS114, Low frequency extension for submarines power sources. Applies to
power leads only
MIL-STD-461F Presen
MIL-STD-461F
Test I.D.
Section/Table Figure
Page
5.16.3.4
92
RE101, Adds method to increase loop antenna distance until test specimen
complies w/ limit and record distance
5.17.3.4
100
RE102, Procedure Step 3; Requires 10 pF capacitor connected to the rod
mount as shown in Figure RE102-8. Commercial jigs and injection
networks are not permitted
RE102-6
107
Rod height changed the 41 rod element mid-point is to be at 120 cm
above the chamber floor
Co-axial exist rod base and it is connected to floor through ferrite bead
RE102-8
109
Added figure to show Procedure Section, Calibration,
RE103
5.18.1
110
Requirement met if harmonics comply with RE102 limit
RS101
5.19.1
116
RS101, applicability change regarding submarine with an operating
frequency 100 kHz and have sensitivity to measure 1V
5.20.1
127
Added 100 MHz to 1 GHz range and increase number of steps
5.20.3.4.d.1.c
130
Requirement to ensure the fundamental is what the E-Field sensor is
measuring and the sensor is not measuring one of the fundamentals
harmonics
RE101
RE102
RS103
Change Description Summary
MIL-STD-461F Presen
MIL-STD-461F
Test I.D.
CE101
CE102
Section/Table Figure
Page
Table
204
Added surface ships
A-6
206
CE101 limits for a 5 uH LISN
A.5.3
206
Alternative method (5uH LISN) for CE101 description
A.5.5
207
Change Description Summary
Alternate method to start a 150 kHz if CE101 was conducted
using 5uH LISN
And more discussion regarding 5uH LISN
RS103
A.5.20
249
Standards authorizes increase antenna distance in order to
increase the antennas half-power beam width and
reduce the number of antenna positions required
MIL-STD-461F Presen
MIL-STD-461F
Test I.D.
Section/Table Figure
Page
Change Description Summary
DI-EMCS-80199, document reference update
Changes to DIDs
n/a
DI-EMCS-80200, Expands emissions plot presentation
explanation and additional susceptibility info
DI-EMCS-80201, computer control soft ware description,
modulation description
Link
http://assist.daps.dla.mil/quicksearch/
MIL-STD-461F Presen
MIL-STD-461G
The largest proposed change is adding a new test section for Electrostatic Discharge. (ESD). Mr. Fred Heather,
Electromagnetic Environmental Effects (E3) Lead for the U.S. Governments F-35 Joint Strike Fighter
Program has created an ESD test section. He was not able to submit this section in time to have it
incorporated into Revision F.
There is a high probability the ESD section will be included within the next MIL-STD-461 revision. Mr. Heather
believes the MIL-STD-464 does not provides adequate direction to conduct ESD testing.
MIL-STD-461F Presen
PAR 1688
This is a potential new standard. It basically applies MIL-STD-461 type
testing to sub-components and modules.
There will be individual test changes as appropriate to test the specimens
an example is RE102. The method right now is near field measurements.
Fred Heather is looking for volunteers to participate within the standard design group
Right now everything is being geared to NAV-Air since their committee is the only
group within the committee. The draft is available from the link below:
http://www.vita.com/vso/vso200711/presentations/0915-p1688-overview.pdf
MIL-STD-461F Presen
References
EMC EXPO 2007 Committee, Washiington Labratories, LTD.
Conformity, Volume 13, Issue 1, January 2008
An Update of MIL-STD-461F by Ken Javor
Ken.javor@emccompliance.com
MIL-STD-461E and MIL-STD-461F
End of Presentation
MIL-STD-461F Presen
