[Elecraft] NVIS HF vs VHF line-of-sight & CB in 9.0 quakes

[Walter Underwood]

I was at work during the Loma Prieta earthquake. Our HP building (now a Tesla building) on Deer Creek Road had hydrogen piping and “HF Waste” piping. That was fine, but a 4” main in the sprinkler system broke, soaking lab notebooks. I remember planning a route home to Mountain View that did not go under or over any bridges. I still had to deal with a water main break.

And then there was Hurricane Betsy when I was growing up in Baton Rouge. No phone for 7 days and no power for 10 days. The toppled red oak in the back yard was the best tree fort ever.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Apr 30, 2017, at 3:26 PM, kevinr at coho.net wrote:
> 
> When we get that 9.0 quake many of my local roads will go away. The gravel logging roads carved into the side of the mountain will collapse.  They regularly do so during our torrential rain season.  A quake will just make it worse.  Plus the number of trees I'll have to cut between here and my mailbox will take at least a 5 gallon container of fuel.  Luckily the CB radios will still work so I can get the local loggers to carve me out.
> 
> However, at that point I'll have to worry about all the bridges between here and there.  Only the smallest ones will have a chance of remaining passable.  I have charged deep cycle marine batteries and reels of spare antenna wire.  As long as I have a roof over my head I'll be able to communicate.  Even then I do have a tent to live in until civilization rights itself again.  The local grouse, rabbit, and deer population may take a hit though :)
> 
>    GL in the big one,
> 
>         Kevin.  KD5ONS
> 
> On 4/30/2017 2:43 PM, Walter Underwood wrote:
>> The potential Cascadia earthquake could be 9.0. That means that every tower will fall, maybe even those built like this CHP/CalOES tower.
>> 
>> http://www.oesnews.com/going-towering-heights-keep-emergency-communications-flowing/ <http://www.oesnews.com/going-towering-heights-keep-emergency-communications-flowing/>
>> 
>> That is why I suggested easily erected wire antennas and small beams, like a 10m Moxon. After the big one, it will be Field Day, not “flip the switch on the linear”.
>> 
>> Regular practice with field antennas will be more useful preparation than a big antenna farm. Maybe some regular exercises with a Par EndFedZ antenna, or even SOTA activations.
>> 
>> http://www.lnrprecision.com/endfedz/ <http://www.lnrprecision.com/endfedz/>
>> 
>> More info on the potential Cascadia earthquake.
>> 
>> http://www.newyorker.com/magazine/2015/07/20/the-really-big-one <http://www.newyorker.com/magazine/2015/07/20/the-really-big-one>
>> 
>> wunder
>> K6WRU
>> Walter Underwood
>> CM87wj
>> http://observer.wunderwood.org/ (my blog)
>> 
>>> On Apr 30, 2017, at 1:22 PM, Bill Frantz <frantz at pwpconsult.com> wrote:
>>> 
>>> I have always wondered how towers hold up during earthquakes. Being able to work with ad-hoc antennas seems a good attribute for any emergency plan.
>>> 
>>> 73 Bill AE6JV
>>> 
>>> On 4/30/17 at 11:34 AM, kevinr at coho.net wrote:
>>> 
>>>> Please try NVIS on 40 or 80 meters.  You'll find you can cover most of the state with its use.  Plus the antennas can be ad hoc - tossed into trees or even an old fence line.
>>> -----------------------------------------------------------------------
>>> Bill Frantz        | I don't have high-speed      | Periwinkle
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>>> www.pwpconsult.com |                              | Los Gatos, CA 95032
>>> 
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