A sources sought notice is posted to support a non-manufacturer rule waiver request with the SBA for the procurement of a spectrum analyzer under NAICS 334515. Small business manufacturers of spectrum analyzers are asked to contact the listed points of contact to receive the Statement of Need and confirm whether they can meet its requirements. The 55th Contracting Squadron has an ongoing requirement for a fixed or portable spectrum analyzer with a frequency range from as low as 2 Hz to as high as 275 GHz, and phase noise no greater than -140 dBc/Hz at 10 kHz offset. Responsive entities must submit their entity name, CAGE/SAM UEI, business size, and a capabilities statement indicating fulfillment as a manufacturer or reseller. This notice fulfills pre-solicitation requirements and is open to all responsible entities.