On Navy ships you have a slew of EM radiating emitters, not only from your own ship, but also from other ships that may be close by. For that reason, a lot of time and effort is spent EM-hardening equipment and cables from being susceptible to EMI and also ensuring radiating emitters don't exceed spectrum and intensity limits - whether they're intended to radiate (e.g. antennas, radars, range finders, etc.) or not (e.g. generators, motor controllers, etc.).
Mil-std-461 (downloadable here (1)) tells you how to test equipment/environments to ensure EM radiated emissions and equipment susceptibility are within standard/tolerable limits. If problems arise on a ship, there is shipboard testing that can be used to pinpoint the culprit and then you can mitigate (e.g. ferrite beads, shielding, proper grounding per Mil-std-1310, removing cable loops, etc.).
Sounds like these folks could use some good old fashioned EMI testing.
[+] [-] rkagerer|7 years ago|reply
Full spectrum analyzer?
PKE Meter?
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Speculation on Facebook: https://www.facebook.com/permalink.php?id=517845548283931&st...
Potentially similar incident last year in New Zealand? https://www.stuff.co.nz/national/106902631/dozens-locked-out...
[+] [-] MarkSummer|7 years ago|reply
On Navy ships you have a slew of EM radiating emitters, not only from your own ship, but also from other ships that may be close by. For that reason, a lot of time and effort is spent EM-hardening equipment and cables from being susceptible to EMI and also ensuring radiating emitters don't exceed spectrum and intensity limits - whether they're intended to radiate (e.g. antennas, radars, range finders, etc.) or not (e.g. generators, motor controllers, etc.).
Mil-std-461 (downloadable here (1)) tells you how to test equipment/environments to ensure EM radiated emissions and equipment susceptibility are within standard/tolerable limits. If problems arise on a ship, there is shipboard testing that can be used to pinpoint the culprit and then you can mitigate (e.g. ferrite beads, shielding, proper grounding per Mil-std-1310, removing cable loops, etc.).
Sounds like these folks could use some good old fashioned EMI testing.
1. https://quicksearch.dla.mil/qaSearch.aspx
[+] [-] unknown|7 years ago|reply
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[+] [-] MarkSummer|7 years ago|reply
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