Nelson-Ross PSA-225

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Nelson-Ross PSA 225
25 MHz Spectrum Analyzer plug-in
Nelson-Ross 225 front view

Compatible with 560-series scopes

Produced from (?) to (?)

(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Nelson-Ross PSA-225 is a spectrum analyzer plug-in for 560-series scopes.


Frequency range is from 1 kHz to 25 MHz. Resolution bandwidth is from 200 Hz to 20 kHz. The vertical scale has linear, logarithmic, and square-law modes.