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UltraSoundGate Charge Amplifier with Hi-Pass
Filter
for passive hydrophones without integrated
pre-amplifier |
part # 42002 (USG)
part #
42003 (P48) | |
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This charge amplifier is available in two versions that allows to connect passive hydrophones either to the UltraSoundGate units (#42002) or to other recording equipment that supplies 48V phantom-power (#42003).
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- Hydrophone input connector : female BNC socket
- Output connector: male XLR-5 (USG version) or XLR-3 (P48 version) socket
- Selectable input resistance : 3.3kOhm ... 15MOhm
- Selectable input capacitance : 100pF or 1nF
- Available hi-pass cut-off frequencies at an input
capacitance of 1nF [Hz] : 10, 25, 50, 100, 250, 500, 1k,
2.5k, 5k, 10k, 25k, 50kHz (or 100 Hz ... 500 kHz at 100 pF)
- Gain = 20 log (capacitance of the hydrophone / selected
input capacitance)
- Physical dimensions : 85 x 25 x 48 mm
- Weight : 90 g
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The gain of the charge amplifier
depends both on the nominal capacitance of the connected hydrophone
and the selected amplifier input capacitance. A hydrophone
capacitance of 3nF and an input capacitance of 1nF would provide a
gain of approximately 10 dB. The alternate input capacitance of
100pF would provide a gain of 30 dB. The supply voltage for the
amplifier is provided by the UltraSoundGate device (via USB), which
means that there is no additional power supply required. A special
phantom-powered version allows to connect the amplifier directly to
other audio recording equipment.
Compatible hydrophones are for instance
RESON TC4013,
RESON TC4033 or
RESON TC4034.
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