Attachment A - Statement of Need.docx.pdf

This document is a detailed Statement of Need outlining technical requirements for a Phase Noise and AM Noise Analyzer for the Department of Commerce National Oceanic and Atmospheric Administration (NOAA). The analyzer must have RF input frequency capabilities from 1 MHz to 3500 MHz, a power range of +20 dBm, 50Ω input impedance, and a built-in display. Critical performance specifications include advanced phase noise sensitivity measurements at 3 GHz across multiple offset frequencies, with sensitivities ranging from -85 dBc/Hz at 10 Hz to -168 dBc/Hz at 1 MHz, and phase noise accuracy of <1.5 dB for offsets <2 MHz.

Additional required capabilities include utilizing cross-correlation analysis methods, improving phase noise sensitivity through multiple correlations, measuring AM noise with high sensitivity, and having native or hardware/software-enhanced capabilities for pulsed phase noise measurements, voltage-controlled oscillator (VCO) characterization, and precise clock jitter analysis. The system is specifically intended to support first article testing at the National Weather Services' Radar Operations Center, with stringent performance criteria for measuring low phase noise across continuous and pulsed signal testing scenarios.