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Is the EMP threat a hoax?

Discussion in 'Ham Radio Discussions' started by KG4JYD, Feb 13, 2018.

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  1. KL7AJ

    KL7AJ Ham Member QRZ Page

    Here's the definitive answer. (I worked on a few EMP devices at HIPAS Observatory, and know what it takes to do some of this WITHOUT a nuke)
    Yes....a nuclear detonation can create a destructive EMP pulse
    However....if a nuclear detonation is close enough to cause the kind of EMP disruption these folks worry about.....the EMP is the LEAST of your worries!

    Pretty simple.
    KA4DPO, KC8VWM and NL7W like this.
  2. W4NNF

    W4NNF XML Subscriber QRZ Page

    Yes and no. A high yield, high altitude multi-megaton explosion can cause serious, wide-spread EMP effects--which is why the government tried (and mostly failed) to get broadcasters to harden their stations against it years ago. Effects as bad as some people now imagine them to be these days? Probably not.
  3. KK5JY

    KK5JY Ham Member QRZ Page

    Multi-MT being the key for evaluating the risk realistically. The number of nations with access to operational warheads of that size is still quite small, and the ones that do have far more effective ways to wage warfare.
    NL7W likes this.
  4. NL7W

    NL7W Premium Subscriber QRZ Page

    What? I don't have to keep my KWM-2A around much? ;)
  5. N1OOQ

    N1OOQ Ham Member QRZ Page

    Once again...
    EMP isn't going to do anything that a nearby lightning strike won't. It's not magic. Whatever you do for lightning will work for EMP.

    So my answer to the OP is, yah, mostly. My answer to the thread is, like others, it would be very far down the concern list.
    KB4QAA likes this.
  6. KP4SX

    KP4SX XML Subscriber QRZ Page

    Put your popcorn kernels in a paper bag with maybe a spritz of buttery flavored PAM, place outside on the porch and wait for the EMP blast. Presto, instant popcorn.
    Other EMP cooking methods...
    Make a wire hoop out of #10 or 12 wire leaving the ends open to stick into a frankfurter. Presto!
    Add your favorite EMP recipes here :)
    KA4DPO and NL7W like this.
  7. NL7W

    NL7W Premium Subscriber QRZ Page

    There's truth to this. As minor as they might be, both EMP and GeoMagnetic Disturbances (GMDs) are a threat. Thankfully, their effects can be mitigated with known devices. And the devices are commonly available to citizens and hams across the country.

    Proper ham radio base station installation techniques -- grounding, bonding and the use of quality surge or pulse suppression devices surrounding bulk (whole home) and individual electrical circuits, RF and other telecom inputs -- in the home or shack will likely mitigate most ill effects. Follow your heart to determine your perceived level of risk and act accordingly. That will satisfy one's level of prudence.

    Some interesting material to read:

    You'll notice that Part 2 (second link) mentions the large, looming likelihood of a GMD taking down a portion of the Nation's electrical grid. Possible... but as the Sun quiets over the ensuing decades, that likelihood dies down immensely. Still it's best to prepare. Alternative sources of electrical power would be nice own and maintain.

    Last edited: Feb 14, 2018
  8. KB4QAA

    KB4QAA XML Subscriber QRZ Page

    Copper should never be in direct contact with with foods (toxic!). Use silver or tin plated wire.
  9. KP4SX

    KP4SX XML Subscriber QRZ Page

    Remember when you wanted to get a day off school and told mommy you felt sick? And she'd take your temperature with a thermometer? An old style one that had MERCURY in it - OMG!
    A copper penny under the tongue would react with the saliva and raise the temperature reading. : )
  10. KC8VWM

    KC8VWM Moderator Volunteer Moderator QRZ Page


    Tell us more about these "EMP effects" and what it will actually do.

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