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Mr DX
Posted: Mon Feb 11, 2008 6:42 am
Guest
Hello All,
I would like to setup a seismometer station in the local mountains of
So Cal. I want it to be an analog station with an audible tone
warble.

Can someone tell me the steps I need to take to set up station?
Do I need permits, license and what else?
Could I use a sensor already buried that is not being used anymore?
How would I find an unused sensor?

Thanks
Steve
Conehead
Posted: Mon Feb 11, 2008 2:43 pm
Guest
Step 1) Contact the local chapter of the ARRL. 2) Fill out the proper
repeater application. 3) spend a lot of time building the repeater
shack, power source, and back-up power. OR. Buy a used seismograph and
bootleg a repeater on an unused freq. and "J-Pole" the antennae toward
you casa. If you want the Gov't. to know what you are doing, then go
the ARRL route. If you want to enjoy your own creation then use the
alternate route. 7's... kd6??
Skywise
Posted: Tue Feb 12, 2008 12:32 am
Guest
Mr DX <mrdx@iwon.com> wrote in news:faae1270-1a50-4f3c-9bfc-
5c3ed1e72a6a@d21g2000prf.googlegroups.com:

Quote:
Hello All,
I would like to setup a seismometer station in the local mountains of
So Cal. I want it to be an analog station with an audible tone
warble.

Can someone tell me the steps I need to take to set up station?
Do I need permits, license and what else?
Could I use a sensor already buried that is not being used anymore?
How would I find an unused sensor?

You obviously only have a passing interest in ham and quakes or
you'd already know the answers.

Kinda like the person who rides a train to work every day versus
the person who plans a vacation around a specific train. One could
care less how it all works, "just get me there on time". The other
knows all the ins & outs of everything, every nut & bolt.

Anyway, do you have a background or knowledge in electronics?
Cuz otherwise, this endeavor is moot as you'd have to build this
yourself. I doubt anyone will just hand you the keys to a working
system (unless you have lots of $$$$$$).

Brian
--
http://www.skywise711.com - Lasers, Seismology, Astronomy, Skepticism
Seismic FAQ: http://www.skywise711.com/SeismicFAQ/SeismicFAQ.html
Quake "predictions": http://www.skywise711.com/quakes/EQDB/index.html
Sed quis custodiet ipsos Custodes?
Guest
Posted: Wed Feb 13, 2008 7:12 am
Conehead,
Thanks for input. I wondered if it was that route through the ARRL.
Although I don't want a repeater just a transmitter on a beam. I own
a repeater already but it's not in a location I would setup a
seismometer. Although I can set up a UHF link to it. The controller
is already setup on a UHF link. Hmm - That might be a good idea.

Thanks.

Skywise / Brian,
So you are telling me because I am not going to devote myself to
learning everything about this or have a degree in this field I should
not bother?

I have been a Ham since 1987. I am not an Extra class. I do have some
knowledge in electronics however I am not an expert or have a degree
in that field.

I don't want someone just to hand me a working system. I would much
rather build something my self. That being said, all I am looking for
is to listen to the audible tone warble. Over the years my family,
friends & I have listened to the tones and recorded some. It's nice
just to hear the Earth talk. (just an expression for the point) If
someone had an analog system I could hear West of the San Bernardino
Mt range already running I would not even bother with my questions
here.

The nice thing was that I used the warbling tones as a teaching tool
and entertainment for kids & some adults. They are fascinated just
listening. It's a shame the kids can no longer listen to the tones
anymore. My Scouts would always want to listen when we went camping.
Some of my Scouts have moved on to studying seismology as a hobby.
They are still young and learning as they go.

It seams like all the analog transmitters have gone away and only the
digital systems are left. All you hear (from what I have been told)
is packet a data stream. I would listen for my self but I don't know
the frequencies. I can find data streams all over the bands but I
have no idea what the source is. I don't want to plug in a laptop to
decode the data in the car. I can get the data already decoded from
the USGS EQ pages.

Have you ever tuned into the Northern Light sounds or know as Auroral
sounds... WOW, it's kind of ominous! You can buy a receiver just
setup to listen to the sounds.

Anyway, I digress.

Your right, I only have a limited ambition in this quest. So if I
cant find what I am looking for, then I will work on creating what I
would like.

Well I hope this explains some of your questions.

Thanks
rick++
Posted: Wed Feb 13, 2008 12:14 pm
Guest
Quote:
I would like to setup a seismometer station in the local mountains of
So Cal. I want it to be an analog station with an audible tone
warble.

Can someone tell me the steps I need to take to set up station?
Do I need permits, license and what else?
Could I use a sensor already buried that is not being used anymore?
How would I find an unused sensor?

Do you own the land or have permission?
Both the government and private landowners dont like
finding strange devices on their land. They fear safety,
pollution, and in my part of the country- secret prospecting.

Ground quality is important. Ideally you'd like to fasten the
sensor to hardbed rock tens of feet deep. Soil attenuates signal
and there is more noiseat the surface.

Could anyone here point to good reference on what the US array
is doing in siting? I heard an overview talk last week and their
effort impressive. They are siting 400-500 seismometers in 4000(?)
US locations, rotating over a decade. Someone asked about permitting
and the speaker said that wasnt a big problem. They have the aura
of being run by big-name universities. Their sites are spaced at
about
45 miles in a grid spanning the US north-to-south. Telemetry is
internet, wireless, or [sat]phone depending on remoteness of site.
Mr DX
Posted: Thu Feb 14, 2008 5:08 am
Guest
On Feb 13, 2:14 pm, "rick++" <rick...@hotmail.com> wrote:
Quote:
I would like to setup a seismometer station in the local mountains of
So Cal. I want it to be an analog station with an audible tone
warble.

Can someone tell me the steps I need to take to set up station?
Do I need permits, license and what else?
Could I use a sensor already buried that is not being used anymore?
How would I find an unused sensor?

Do you own the land or have permission?
Both the government and private landowners dont like
finding strange devices on their land. They fear safety,
pollution, and in my part of the country- secret prospecting.

Ground quality is important. Ideally you'd like to fasten the
sensor to hardbed rock tens of feet deep. Soil attenuates signal
and there is more noiseat the surface.

Could anyone here point to good reference on what the US array
is doing in siting? I heard an overview talk last week and their
effort impressive. They are siting 400-500 seismometers in 4000(?)
US locations, rotating over a decade. Someone asked about permitting
and the speaker said that wasnt a big problem. They have the aura
of being run by big-name universities. Their sites are spaced at
about
45 miles in a grid spanning the US north-to-south. Telemetry is
internet, wireless, or [sat]phone depending on remoteness of site.

I thought about that. Just plant one someplace, however I know that is
the wrong thing to do. like you suggest, soil and geology makeup of
the ground should be considered.

It would be much easier just to find an analog station still in
operation and just listen. I am surprised that no one will just
mention the current freqs or a analog station still in operation.

Wow, thats impressive. So many stations....
Skywise
Posted: Fri Feb 15, 2008 1:24 am
Guest
Pyrrdin02@gmail.com wrote in news:81a531a9-9731-4d06-964f-2955535ca959
@s12g2000prg.googlegroups.com:

Quote:
Skywise / Brian,
So you are telling me because I am not going to devote myself to
learning everything about this or have a degree in this field I should
not bother?

I didn't mean it that way. Sorry if it came out that way.

From the rest of your post, you at least would know how to set
up the radio part of the system.

The seismometer part would likely be your biggest hurdle.
They're not easy to build, at least one that produces meaningful
data. Sure, you could buy one I guess.

I myself have looked into building my own seismo. There are lots
of plans out there, but they are mostly for simple swinging
pendulum types rather than the nice compact electronic devices
really used.

As for your asking for frequencies, I think your answer is that
there just isn't anyone here who has the answer you need. We're
smart, but not omniscient. (although some here might claim
otherwise, but I digress).

I can certainly understand your desire for this project as I
have at least heard recordings of the warble. I have an MP3
of one somewhere.... looking at it in FFT reveals the pattern
nicely.

I have had similar designs in mind as to what you want, except
for the radio transmission part. The result woudl have been
the same, though. A seismometer producing a tone to be recorded
by computer for later decoding. I would have used the tone method
as I could then use an ordinary unmodified sound card as the
data acquisition device.

Never got further than brainstorming, though.

Brian
--
http://www.skywise711.com - Lasers, Seismology, Astronomy, Skepticism
Seismic FAQ: http://www.skywise711.com/SeismicFAQ/SeismicFAQ.html
Quake "predictions": http://www.skywise711.com/quakes/EQDB/index.html
Sed quis custodiet ipsos Custodes?
Guest
Posted: Fri Feb 15, 2008 6:27 am
On Feb 14, 11:11 pm, Skywise <i...@oblivion.nothing.com> wrote:
Quote:
Pyrrdi...@gmail.com wrote in news:81a531a9-9731-4d06-964f-2955535ca959
@s12g2000prg.googlegroups.com:

Skywise / Brian,
So you are telling me because I am not going to devote myself to
learning everything about this or have a degree in this field I should
not bother?

I didn't mean it that way. Sorry if it came out that way.

From the rest of your post, you at least would know how to set
up the radio part of the system.

The seismometer part would likely be your biggest hurdle.
They're not easy to build, at least one that produces meaningful
data. Sure, you could buy one I guess.

I myself have looked into building my own seismo. There are lots
of plans out there, but they are mostly for simple swinging
pendulum types rather than the nice compact electronic devices
really used.

As for your asking for frequencies, I think your answer is that
there just isn't anyone here who has the answer you need. We're
smart, but not omniscient. (although some here might claim
otherwise, but I digress).

I can certainly understand your desire for this project as I
have at least heard recordings of the warble. I have an MP3
of one somewhere.... looking at it in FFT reveals the pattern
nicely.

I have had similar designs in mind as to what you want, except
for the radio transmission part. The result woudl have been
the same, though. A seismometer producing a tone to be recorded
by computer for later decoding. I would have used the tone method
as I could then use an ordinary unmodified sound card as the
data acquisition device.

Never got further than brainstorming, though.

Brian
--http://www.skywise711.com- Lasers, Seismology, Astronomy, Skepticism
Seismic FAQ:http://www.skywise711.com/SeismicFAQ/SeismicFAQ.html
Quake "predictions":http://www.skywise711.com/quakes/EQDB/index.html
Sed quis custodiet ipsos Custodes?

The USGS has all sorts of digital data on file. You could take that
and speed it up to audio frequencies.

Roger
Mr DX
Posted: Fri Feb 15, 2008 6:37 am
Guest
Hi All.
Hey I have that Nasty cold going around and my brain has blow all
fuses.... So I am not going to post anything for a while... I don't
want to babble.... hehe
Skywise
Posted: Fri Feb 15, 2008 7:56 pm
Guest
rogerh@lpbroadband.net wrote in news:1bef9d53-19de-4114-a1e0-f6aa9b3aed16
@e23g2000prf.googlegroups.com:

Quote:
The USGS has all sorts of digital data on file. You could take that
and speed it up to audio frequencies.

Yes...been there, done that. All sorts of data at the IRIS web site.
I found interpreting the SEED format the data is stored in quite a
challenge. Still not satisfied with my implementation, though.

But the OP is looking for real time monitoring.

Brian
--
http://www.skywise711.com - Lasers, Seismology, Astronomy, Skepticism
Seismic FAQ: http://www.skywise711.com/SeismicFAQ/SeismicFAQ.html
Quake "predictions": http://www.skywise711.com/quakes/EQDB/index.html
Sed quis custodiet ipsos Custodes?
Aidan Karley
Posted: Sat Feb 16, 2008 3:46 pm
Guest
In article <13rab81tg8t52f6@corp.supernews.com>, Skywise wrote:
Quote:
As for your asking for frequencies, I think your answer is that
there just isn't anyone here who has the answer you need.

Wouldn't the regulations about polluting the radio spectrum

tightly restrict the frequencies that could be used? The questioner
(whose name I've forgotten, sorry) hasn't once mentioned getting a
license for radio transmission, so I would expect that he's planning to
transmit in one of the relatively small number of no-license-required
bands.
As a ham, there may be conventions about deliberately "blocking"
a particular frequency from other people's use, by continuously
transmitting on it.

I suspect that looking at the regulatory aspects of unlicensed
radio transmission would be a quicker way of narrowing down which
frequency to use. Again, the original poster will know which country
(-ies?) will have laws governing his location. The prospect of
operating the station illegally hasn't been suggested ; there's also
been no mention of jumping backwards through the 48 flaming crocodile-
lined hoops necessary to get a license for transmission. By the time
you've done that lot, and recovered from dieing of old age, you're not
talking about an amateur project.

--
Aidan Karley, FGS
Aberdeen, Scotland
Message written at Sat, 16 Feb 2008 10:41 GMT, now I'm back on shore.
 
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