This is a Sources Sought Synopsis for market research purposes only, not a solicitation for bids. The 179th CW/MSC in Mansfield, OH seeks capable sources to supply high-performance Software Defined Radios (SDRs), specifically the Ettus Research USRP X400-Series or equivalent, for laboratory use in electronic warfare algorithm development. The SDR must be a single COTS device with at least eight independent transmit and eight receive channels, direct RF sampling, up to 1.6 GHz bandwidth per channel, 30 MHz to 4 GHz frequency range, and strict phase coherency under 1° RMS. Vendors proposing alternatives must detail how their product integrates with the existing UHD and RFNoC software frameworks, including a transition plan and timeline. No budget or submission timelines are specified in this notice.