SpectraDynamics HPDA-15RM/A Operating Manual page 2

SDI
HPDA-15RM/A Description
The HPDA-15RM/A is a high performance distribution and isolation amplifier. It
contains a high performance distribution module that provides 5 unity gain outputs.
Typical cross channel isolation is 125 dB and reverse isolation is typically greater than
135 dB. The phase noise of the module is exceptionally low, typically –150 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
1849 Cherry St. Unit 2. Louisville, CO 80027 Phone: (303) 665-1852 Fax: (303) 604-6088
PECTRA YNAMICS NC
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Copyright © SpectraDynamics, Inc. 1999 2