United States Geological Survey
radio frequencies
Last updated
October 04, 2003
www.freqofnature.com
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United States Geological Survey
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| Description | Frequency |
| Seismic Studies (Portable Radios) | 163.1500 |
| Seismic Studies (Portable Radios) | 162.5900 |
| Hydrology | 164.1500 |
| Hydrology | 170.3000 |
| Mapping | 164.5750 |
| Geothermal Research | 166.3750 |
| Water Resources (Ventura) | 164.8000 |