Spectrum Engineering

This handbook provides the radio frequency (RF) analyst with the capability to calculate the effects of noise and interference on RF communications receivers. A receiver is modeled as a sequence of modules. Each module has a transfer function that relates the module outputs to the module inputs. By consecutively analyzing each module in the sequence, the analyst can then relate the receiver outputs (performance) to the receiver inputs (signal characteristics).

A wide variety of communications modulation and coding techniques are considered for this handbook including Quadrature Phase Shift Keying (QPSK), Gaussian Minimum Shift Keying (GMSK), Orthogonal Frequency Division Multiplexing (OFDM), Low Density Parity Check Coding (LDPCC) and Turbo Product Coding (TPC). Interferers considered include continuous and pulsed narrow and broadband interferers which are on-tune, off-tune and adjacent channel.

Public Law 106-553, The Departments of Commerce, Justice, and State, the Judiciary, and Related Agencies Appropriations Act, requires the National Telecommunications and Information Administration (NTIA) to consult with other federal agencies and departments responsible for regulating the core operations of entities engaged in the provision of energy, water, and railroad services and to report to Congress no later than one year after the Act’s enactment on the current and future use of spectrum by these entities to protect and maintain the Nation’s critical infrastructure.

NTIA reviewed the information collected through comments, reports, and other sources of information. NTIA presents its findings in this report based upon such data. NTIA found that providers of energy, water and railroad services submitting comments for this report had concerns regarding their current and future spectrum requirements. In addition, federal agencies who regulate the core operations of these industries (or some aspect of those operations) generally concur with comments by the industry and its representative trade organizations.

This report is a Spectrum resource Assessment of the 5650-5925 MHz band. Included in information on rules and regulations, allocations, technical standards, frequency assignments, system characteristics, and applicable compatibility analysis.