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Results 1 - 10 from 331 for frequency range in 0.493 sec.
Gunderboom, Inc. | In partnership with seventy percent of the Earth
By integrating several sound attenuation techniques, Gunderboom's SAS™ cushions against sound waves of all frequencies, including far-reaching, low-frequency sounds that are the most ...
www.gunderboom.com
OMI's Dr. Green Talks in Berlin
LFAS is transmitted in the same low frequency range used by several species of endangered whales for communication and other vital functions. The ... since both low and mid-frequency sonars and low frequency seismic air guns have been implicated. The adverse impacts of LFAS extend beyond marine mammals. Low frequency sound, including sonar, has ...
www.oceanmammalinst.org
Dosimetry Workshop
Workshop on EMF Dosimetry and Biophysical Aspects Relevant to Setting Exposure Guidelines" covered the whole frequency range from static fields to terahertz. Invited experts presented lectures on those topics and discussed the ...
icnirp.org
Electromagnetic Field Shielding Paints
Inks using Silver, Copper and Nickel Y-SHIELD YShield High Frequency Shielding Paint Easy to apply water-based paint for walls, ... to two mil coating provides 40dB - 50dB shielding across a frequency range of 5 to 1800MHz. About 1600 in˛/can coverage at ... against moisture and corrosion. Thermally stable over a wide temperature range. Reduces wear too. 0.23 oz. RoHS Compliant. Conductive Grease (Cat. # ...
lessemf.com
Standards and Recommendations Electromagnetic Field Exposure
Frequency Range MPR II TCO '95 Electric Fields: DC: Static Field +/- ... the frequency range of 30 MHz to 300 MHz, the safe exposure limits are the lowest. This is the frequency range ... magnetic and electric fields; * extremely low-frequency fields, including power-line fields at 60 Hz; * radio-frequency (rf) fields and radiation with ...
lessemf.com
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NGDC/WDC STP, Boulder-Solar Radio Data via FTP from NGDC
The lower the frequency, the higher the height of origin. The frequency, like the electron density, decreases uniformly outwards: 245 MHz ... software The USAF RSTN (Radio Solar Telescope Network) solar radio spectrograph (SRS) sweeps the frequency range 25 to 180 MHz every 3 seconds. It monitors solar radio emissions originating mainly ...
www.ngdc.noaa.gov
SURVIVAL RADIO 101
Most are capable of nearly 20 watts AM and 40 ... powerful big brother the model 2970. These radios have a frequency range of 26 MHz to 31.999 MHz (with a very ... frequency 27.5550 USB as a long distance call frequency. This frequency is located in the so-called "freeband" which extends from 27.4150 to 27.9990, this frequency ...
i4at.org
Noise: Building Acoustics: Reverberation Time
Noise > Building Acoustics > Reverberation Time In acoustics the reverberation time at a particular frequency is defined as the time taken for sound to decay by 60 dB; this is ... time is given at 500 Hz but the balance of the reverberation over the whole frequency range is very important.... For speech, the reverberation time should be the same at all frequencies ...
noisenet.org
OMI: Marine Mammals and Low Frequency Active Sonar (LFAS) Fact Sheet
OMI: Marine Mammals and Low Frequency Active Sonar (LFAS) Fact Sheet Marine Mammals and Low Frequency Active Sonar (LFAS) Low Frequency Active Sonar (LFAS) is a military sonar technology designed to detect and ... 155 dB. The Navy acknowledges that "the lack of empirical data in the received level range of 155 – 180 dB is an issue." (Appendix D, Final Environmental Impact Statement) Every recorded ...
www.oceanmammalinst.org
RE: Don't test mid-frequency sonar on endangered whale migratory path
Hampton Boulevard Norfolk, VA 23508 RE: Don't test mid-frequency sonar on endangered whale migratory path Dear Mr. Jenkins, As a ... change its proposal to put a testing ground for lethal mid-frequency sonar along the migratory path of highly endangered northern right ... , it is also critical that the Navy implement a full range of mitigation measures to protect marine life from these sonar exercises ...
earthactionnetwork.org
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