GeoSpectrum offers a low-noise, low-power preamplifier that is suitable for any of its hydrophones. The gain, bandwidth and filters can be adjusted at time of manufacture. The output can either be voltage signalling or current signalling, which is recommended for longer cable lengths. This preamplifier is well suited for streamers and other low-power applications.
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CHARACTERISTICS |
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Frequency response |
1 Hz up to 500 kHz |
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Gain |
0 to 35 dBV |
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Input referred noise |
Typically less than 4 nV/√Hz (depends on frequency, hydrophone capacitance and gain) |
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Filtering |
Single pole high and low pass |
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Current draw |
Typically 1 mA for voltage signalling |
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Output |
1 V rms maximum |
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Signalling |
Voltage or current |
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Dimensions |
0.5” wide, 1.3” long |
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Storage temperatures |
-40 to +70 °C |
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Operating temperature |
-5 °C to +35°C |
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Please contact us for further details or to discuss your specific needs.