The
Next Generation Sound Card DSP
Seismic Telemetry Monitor!
SEPARATE
AND MONITOR ONE TONE FROM MULTI-TONE SIGNALS!!
Currently in use in the Mt. St. Helens area!
'GSP-Seis'
is a new Seismic Telemetry Aquisition System for monitoring USGS
seismic telemetry stations using audio from almost any
scanner radio and antenna system. The program uses your computer's
Sound Card as a 16-bit Analog-to-Digital converter. State of the
art Digital Signal Processing (DSP) programming uses the processing
power of your computer to pull weak signals out of the noise and
provide usable data. Separates single tones from multi-tone systems
such as those being used by the University of Washington at Mt. St.
Helens. (Note that you must have a telemetry
station within range of your monitoring point for the system to work.
See below for information on how to find the location of seismic
telemetry transmitters.)
GSP-Seis Main
Display: (Note:
Click on image to enlarge)
Specifications:
- Main
display: Currently fixed at 800x600 resolution.
- 16-BIT analog to digital conversion through sound card
- Runs in background
- Monitors standard U.S.G.S. telemetry tones from 680 to 3060 Hz
- Will monitor GeoTool Seismograph Station when available
- User programmable monitor frequency/deviation
- File View and Print in separate window to allow continuous
monitoring
- Monitors 10, 20, 30, or 60 minutes on a single screen
- Sample rate adjustable to 10, 20, 30, 40, or 50 samples per
second
- Two file save trigger methods
- Sends telemetry signal to the speaker when triggered
- Displays minutes and seconds on screen
- Shows maximum and minimum deviations
- On-screen buttons to display sound card controls
- Trigger Set/Cancel button on screen
- Saves files to disk with date/time coding
- Recalls files for viewing and analysis
- Advanced DSP processing for usable trace even with weak signals
- Separates 1 tone from 8-channel transmissions on a single
carrier
- Low Cost
- User friendly commands
System Block Diagram:
Setup of the system
is not difficult. Attach an appropriate antenna to the receiver,
connect the Speaker Output of the radio to the Line Input of the sound
card, adjust sound card record and playback levels, and run the program.
Demo Version of
Program is Now Available
Runs on Windows 95
through XP. Install it and start monitoring nearby seismic
telemetry stations today.
Download
GSP-Seis.exe
After downloading,
save the file to your hard drive. Then click on the file and the
Install Wizard will load the program. Follow the instructions to
install the program.
Download GSP-Seis
Manual
Get a great look at
the program operation, screens and information about radio reception,
antennas, and frequencies to search for seismic telemetry
stations.
Seismic
Telemetry Transmitter Site Locations
Visit the following
web site for information on the location of USGS
National Seismograph Network monitoring stations. Note that
not all stations use radio signals to send data to the monitoring
locations. Some stations use digital modes that are not
compatible with this system.
Seismic Telemetry
Frequencies in the USA
The file TelmFreq.txt lists some
of the frequencies used by the U.S.G.S. for seismic telemetry.
The transmitters are typically very weak, so you need to live within
about 50 miles of the station. Don't be discouraged, there are
many of these stations throughout the U.S. The chances are good
that you will be able to hear one. Be sure to check that
you have a signal from a nearby station before ordering the
program. Feel free to download and distribute the DEMO program to
anyone interested in monitoring telemetry stations.
Also AvailableFrom
GeoTool:
Dr. Bruce Bolt's
textbook "EARTHQUAKES", an excelent basic course in seismology, which
was revised in 1999. Dr Bolt is a noted professor in the departments of
Geology, Geophysics, and Civil Engineering at the University of
California, Berkley. This is a clearly, concisely written source of
information on many aspects of earthquakes, and provides you with a
wealth of information about earthquakes and seimograms.
Purchasing Information:
The GSP-Seis demo
program runs for 30 days. After that, you may register the
program for continued use.
Email Registration:
$ 50.00
CD
copy
of
program:
$ 10.00
Replacement/update:
$ 15.00
'Earthquakes'
by Dr. Bruce
Bolt
$ 19.95
Prices do not
include shipping.
California
residents must add 7.75% sales tax.
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Providers of
the State of the Art DSP data aquisition engine for the
GeoTool Seismograph, and Computer programs for Slow Scan
Television, Audio Processing, Video Converencing, Manufacturing
Automation, and much more.
   
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E-Mail GeoTool for
further details at:
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