SpectraDynamics HPDA-100RM-A Operating Manual page 3

SDI
Description
The HPDA-100RM-A is a high performance distribution and isolation amplifier. It
contains one module that provides five unity gain outputs. Typical cross channel
isolation and reverse isolation is typically greater than 100 dB. The phase noise of the
modules is exceptionally low, typically –145 dBc/Hz @ Fourier frequency of 1 Hz and
–173 dBc/Hz @ Fourier frequency greater than 10 kHz. Both the input and output are
matched to 50 ohms to obtain better than 25 dB return loss. All outputs are AC coupled
and the grounds are DC isolated to reduce the effect of ground loops.
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S D I
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