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MIL-STD-461F Presentation
Project T53300

2. 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 Presentation
Project T53300

3. MIL-STD-461F Presentation
Test I.D.
Section/Table Figure
Page
Change Description Summary
General
Requirements
4.2.7 8
Revisions or changes to module equipment needs to be re-validated per standard. This applies to form, fit and function (plug –n- play) replacement
and 14
Test Software description is required, minimum for commercial s/w = manufacturer, model and revision
and
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.
, 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
CE101
5.4.1 27
Applicability for surface ships was added
MIL-STD-461F Presentation
Project T53300

4. MIL-STD-461F Presentation
Test I.D.
Section/Table Figure
Page
Change Description Summary
CE106
 5.6.1
40 
Better description of the 2&3 harmonic suppression
CS101 48
CS101, Calibration to max power level limit and ensure no degradation from ripply voltages
CS106
5.11. and 50.11 59
Added CS106 requirement and increased Section numbers for standard. Appendix adds discussion regarding CS106
CS106, Conducted Susceptibility, Transient requirement pertains to
Power Leads only
CS109
5.12.1 66
Applicable to surface ship equipment that have an operating frequency ≤100 kHz and have the sensitivity to measure ≤ 1μV
CS106 Pulse
MIL-STD-461F Presentation
Project T53300

5. MIL-STD-461F Presentation
Test I.D.
Section/Table Figure
Page
Change Description Summary
CS114 70
CS114, Ships limit amplitude from 4 kHz to 1 MHz to 77 dBuA. Appendix added discussion regarding the 77 dBuA Navy requirements
CS114, Low frequency extension for submarines power sources. Applies to power leads only
Figure CS114-1 74
Figure changed to reflect requirements.
CS115
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
CS116
Figure CS116-2 90
CS116, One Limit for everyone - 10 Amp curve
MIL-STD-461F Presentation
Project T53300

6. MIL-STD-461F Presentation
Test I.D.
Section/Table Figure
Page
Change Description Summary
RE101 92
RE101, Adds method to increase loop antenna distance until test specimen
complies w/ limit and record distance
RE102
100
RE102, Procedure Step 3; Requires 10 pF capacitor connected to the rod mount as shown in Figure RE 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 ≤1µV
RS103
5.20.1
127
Added 100 MHz to 1 GHz range and increase number of steps
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 fundamental’s harmonics
MIL-STD-461F Presentation
Project T53300

7. MIL-STD-461F Presentation
Test I.D.
Section/Table Figure
Page
Change Description Summary
CE101
Table
204
Added surface ships
A-6
206
CE101 limits for a 5 uH LISN
A.5.3
Alternative method (5uH LISN) for CE101 description
CE102
A.5.5
207
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 antenna’s half-power beam width and reduce the number of antenna positions required
MIL-STD-461F Presentation
Project T53300

8. MIL-STD-461F Presentation
Test I.D.
Section/Table Figure
Page
Change Description Summary
Changes to DIDs
n/a 
DI-EMCS-80199, document reference update
DI-EMCS-80200, Expands emissions plot presentation explanation and additional susceptibility info
DI-EMCS-80201, computer control soft ware description, modulation description
Link
MIL-STD-461F Presentation
Project T53300

9. MIL-STD-461F Presentation
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. Government’s 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 Presentation
Project T53300

10. MIL-STD-461F Presentation
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:
MIL-STD-461F Presentation
Project T53300

11. MIL-STD-461F Presentation
References
EMC EXPO 2007 Committee, Washiington Labratories, LTD.
Conformity, Volume 13, Issue 1, January 2008
An Update of MIL-STD-461F by Ken Javor
MIL-STD-461E and MIL-STD-461F
End of Presentation
MIL-STD-461F Presentation
Project T53300