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Preamplifier

HP Series Submersible Preamplifier - Order Code HP1

Description

The Submersible Preamplifier is an essential part of the hydrophone signal as it buffers the signal and provides a 50 Ohm source. It connects either directly to an Interchangeable Probe ('HP' series), or, if required, via a 20dB In-Line Attenuator (A20/1). Power is provided by a DC Coupler (DC1) so that the dc power and the acoustic signal share the same conductors in the interconnecting coaxial cable between the preamplifier and the coupler.

Specification

Voltage Gain:Nominal 8dB at 3.5MHz
Bandwidth:10kHz to 50MHz (-3dB)
5kHz to 100MHz (-6dB)
Maximum Output Level:
650mV pk - pk into 50Ω load
Input Impedance:1MΩ in parallel with 8pF
Output Impedance:
50ΩVSWR less than 1.2:1) over the range 40kHz to 130MHz
Output Noise Level:
Typically 60uV rms (100MHz bandwidth)
Terminations:
Input - MCX
Output - SMC
Power Requirements:
Supply Phantom fed by Precision Acoustics DC Coupler Model DC2
Operating Range:
Temperature 0 to 50Ω°C
Cable Details:
RG 174 Length 1.5m minimum
Weight:29gm

This specification is subject to change without notice.

For further details contact one of our Applications Engineers on 01305 264669.