PSN-L Email List Message

Subject: Re: which seismometer?
From: "Jim ODonnell" geophysics@..........
Date: Sat, 25 Jul 2009 01:53:35 GMT


Hi All-
Observations of the RLL:
For the last year I have been comparing Larry=92s sensors to his RLL (Vo=
lksmeter-  .lctst & .lctst1) and the results are rather outstanding.  I =
live close to Las Vegas so record mostly local events with 1 Hz & 4.5 Hz=
 geophones.  But I have been considering the RLL as it gets them all=85.=
Local, Regional, & Teleseismic.
It is a Horizontal & I like to look at Rayleigh waves which are predomin=
ately Z.
Any chance of a RLL in Z???
<<<<    Jim

Jim O'Donnell- Geophysical Consultant/Contractor
Geotechnical/Geothermal/Oil & Gas/Mining Applications
Seismic Surveys- Surface Waves, Refraction, & Reflection
Ground Penetrating Radar, Resistivity, Magnetic, & VLF-EM Surveys
Geophysics@..........  702.293.5664  702.281.9081 cell   =

Boulder City, NV


---------- Original Message ----------
From: "Les LaZar" 
To: 
Subject: Re: which seismometer?
Date: Fri, 24 Jul 2009 16:36:01 -0700

Hi Jay,

At the risk of tooting my own horn...

If your budget is flexible, you don't specifically need a Lehman type de=
sign =

and your application would benefit from a research-quality instrument, y=
ou =

may wish to consider the RLL Instruments VolksMeter II ( =

http://www.rllinstruments.com ).  Many of these are currently being used=
 in =

educational and research applications.  Some are in use by psn members.

If you are interested, I would be happy to answer any questions you migh=
t =

have.

Regards,

Les LaZar
RLL Instruments / a division of Zoltech Corporation
818-780-1800

----- Original Message ----- =

From: "Jay Muza" 
To: 
Sent: Friday, July 24, 2009 2:23 PM
Subject: which seismometer?


Hi
I would like to purchase one of the inexpensive Lehman type seismometers=
 =

currently on the market.  The three I am considering are the AS-1, the U=
K =

School of Seismology SEP Seismometer System, and the Rockwave HS-3.  Any=
 =

guidance..any at all...would be greatly appreciated.  Thank you.


Dr. Jay Muza
Department of Physical Sciences
Broward College
Davie, FL  33314

Office: 954.201.6771
Cell:    954.736.8231

jmuza@...........

Please Note: Due to Florida's very broad public records law, most writte=
n =

communications to or from College employees regarding College business a=
re =

public records, available to the public and media upon request. Therefor=
e, =

this email communication may be subject to public disclosure.

Please consider the environment before printing this email.

__________________________________________________________

Public Seismic Network Mailing List (PSN-L)




__________________________________________________________

Public Seismic Network Mailing List (PSN-L)

See http://www.seismicnet.com/maillist.html for more information.

Hi All-
Observations of the RLL:
For the last year I have been comparing Larry=92s sensors to his&nb= sp;RLL (Volksmeter-  .lctst & .lctst1) and the results are= rather outstanding.  I live close to Las Vegas so record mostly local events with 1= Hz & 4.5 Hz geophones.  But I have been considering the RLL as it gets them all=85.Local, Reg= ional, & Teleseismic.
It is a Horizontal & I like to look at = Rayleigh waves which are predominately Z.
Any chance of a RLL in Z???=
<<<<    Jim

Jim O'Donnell- = Geophysical Consultant/Contractor
Geotechnical/Geothermal/Oil & G= as/Mining Applications
Seismic Surveys- Surface Waves, Refraction, &a= mp; Reflection
Ground Penetrating Radar, Resistivity, Magnetic, &= VLF-EM Surveys
Geophysics@..........  702.293.5664  702.28= 1.9081 cell   
Boulder City, NV


---------- Origi= nal Message ----------
From: "Les LaZar" <llazar@.................. m>
To: <psn-l@..............>
Subject: Re: which seismome= ter?
Date: Fri, 24 Jul 2009 16:36:01 -0700

Hi Jay,

At t= he risk of tooting my own horn...

If your budget is flexible, you= don't specifically need a Lehman type design
and your application w= ould benefit from a research-quality instrument, you
may wish to con= sider the RLL Instruments VolksMeter II (
http://www.rllinstruments.= com ).  Many of these are currently being used in
educational a= nd research applications.  Some are in use by psn members.

I= f you are interested, I would be happy to answer any questions you might=
have.

Regards,

Les LaZar
RLL Instruments / a divis= ion of Zoltech Corporation
818-780-1800

----- Original Message= -----
From: "Jay Muza" <jmuza@...........>
To: <psn-l@w= ebtronics.com>
Sent: Friday, July 24, 2009 2:23 PM
Subject: whi= ch seismometer?


Hi
I would like to purchase one of the ine= xpensive Lehman type seismometers
currently on the market.  The= three I am considering are the AS-1, the UK
School of Seismology SE= P Seismometer System, and the Rockwave HS-3.  Any
guidance..any= at all...would be greatly appreciated.  Thank you.


Dr. = Jay Muza
Department of Physical Sciences
Broward College
Davie,= FL  33314

Office: 954.201.6771
Cell:    9= 54.736.8231

jmuza@...........

Please Note: Due to Florida'= s very broad public records law, most written
communications to or f= rom College employees regarding College business are
public records,= available to the public and media upon request. Therefore,
this ema= il communication may be subject to public disclosure.

Please cons= ider the environment before printing this email.

________________= __________________________________________

Public Seismic Network= Mailing List (PSN-L)

To leave this list email PSN-L-REQUEST@SEIS= MICNET.COM with
the body of the message (first line only): unsubscrib= e
See http://www.seismicnet.com/maillist.html for more information.


__________________________________________________________=

Public Seismic Network Mailing List (PSN-L)

To leave this= list email PSN-L-REQUEST@.............. with
the body of the messag= e (first line only): unsubscribe
See http://www.seismicnet.com/mailli= st.html for more information.


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