UNSPSC 43222828: Frequency division multiplexer

An electronic device or system that a device that selects one of several analog or digital input signals and forwards the selected input into a single line. The transmission medium is divided into channels divided into different frequency bands, and each information signal is converted into a transmission wave of the corresponding frequency band and transmitted.

UNSPSC 43222828 Frequency division multiplexer, a Commodity code, does not align with state and local procurement activity captured in recent solicitations. The code nominally describes specialized telecommunications transmission equipment, yet the sourced opportunities reflect state and local demand for integrated satellite internet services, telecommunications cabling installation and moves-adds-changes (MAC), public address system components, air traffic control tower communications packages, emergency communications equipment, legacy telephone maintenance, and radio communications systems—none of which center on frequency division multiplexing as a discrete product line. The recent opportunities emphasize service delivery, labor-intensive installation, system integration, and managed support rather than procurement of multiplexer hardware itself.

State and local issuing bodies active in the telecommunications and emergency communications space include state departments of emergency management and innovation, county sheriff and airport authorities, independent school districts, and municipal governments. The Washington Military Department (emergency satellite internet and AHAB siren backup), Illinois Department of Innovation and Technology (legacy phone maintenance statewide), Texas Department of Information Resources (cooperative cabling contracts), Northside Independent School District in San Antonio (MAC cabling), Comstock Public Schools in Michigan (PA system repairs and installation), and the City of Doral, Florida (telecommunications wiring services) are among recent active buyers. The geographic footprint spans Washington, Texas, Florida, Michigan, Georgia, Illinois, California, and Arizona based on recent postings. Representative opportunities include the Washington Military Department's RFP27014 for Low Earth Orbit satellite internet service and associated hardware (due December 3, 2026, via RFP with pre-bid October 21), the Texas Department of Information Resources' cooperative cabling contract COOP2026SOL-00008 (due September 24, 2026, spanning planning, design, installation, and maintenance), and Northside Independent School District's RFP2026079 for MAC telecommunications cabling (due September 24, 2026). The code shows minimal market relevance to the actual goods and services state and local procurement offices are currently acquiring.