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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 the DC Coupler (DCPS) 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:
50Ω VSWR 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:
28v from the DCPSU
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.