HP Series Submersible Preamplifier 
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 bythe 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
| Output Impedance: | 50 Ohms |
| 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 | Typically 60uV rms (100MHz bandwidth) VSWR: 1-1.4 over the range 0.3-130MHz |
| Terminations: | Input - MCX Output - SMC |
| Power Requirements: | 28v from the DCPS |
| Operating Range: | Temperature 0 to 50°C |
| Weight: | 50g |
For further details contact one of our Applications Engineers.
