AM and FM Transmission System Specifications

Timing Issues

Signal Quality Issues

        Error Vector Magnitude

        Phase Noise

        Flatness

        AM Amplitude and Phase Symmetry

        Where to Measure AM and FM IBOC Specs

        Spectral Emissions

Spectral Emissions Limits

Existing Analog Masks

IBOC Masks

Spectral Density

        PSD and Spectrum Analyzer Settings

        Spectrum Analyzer Detectors and Averaging

FM Mask

        Digital-to-Digital Intermodulation

        Analog/Digital Intermodulation

        NRSC-5-A Mask (Hybrid FM IBOC)

        Digital Sideband Self-Intermodulation

        Hybrid Mask Fine Tuning

        NRSC-5-A Mask (All-Digital FM IBOC)

        OFDM Subcarrier Scaling

AM Mask

        Analog-to Digital and Digital-to-Digital

            Intermodulation

        NRSC-5-A Mask (Hybrid AM IBOC)

        Analog Host Performance with Hybrid

        NRSC-5-A Mask (All-Digital AM IBOC)

        Discrete Components Exception

        OFDM Subcarrier Scaling

        Timing Issues

IBOC or IBAC?

IBAC Characteristics Differ From IBOC

The Radio "Channel"

Chapter 9: TABLES
9.1 Protocols Addressed in Chapter 9
9.2 IBOC Timing and Frequency Specifications
9.3 Spectral Characteristics Specifications Common to AM and FM IBOC
9.4 AM and FM IBOC Phase Noise Specifications
9.5 Locations Where NRSC-5 Transmission Characteristics Are Measured
9.6 Analog FM Spectral Mask- 47 CFR 73.317
9.7 Analog AM Spectral Mask- 47 CFR 73.44
9.8 Hybrid FM IBOC Masks
9.9 Early 2001 Hybrid FM IBOC Mask Referenced by FCC
9.10 NRSC-5 -A All-Digital FM IBOC Mask
9.11 FM IBOC OFDM Subcarrier Scaling
9.12 Hybrid FM IBOC Masks
9.13 Early 2001 Hybrid AM IBOC Mask Referenced by FCC
9.14 NRSC-5-A All-Digital AM IBOC Mask
9.15 AM IBOC OFDM Subcarrier Scaling

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Chapter 9: FIGURES
9.1 Error Vectors on a Constellation
9.2 Error Vector Magnitude
9.3 AM and FM IBOC Phase Noise Specifications
9.4 Example of Hermitian Symmetry
9.5 Spectrum Analyzer Detection Illustrated by the Detected Envelope over the Analyzer Dwell Period in One Frequency Bin
9.6 Spectrum Analyzer Traces (FM IBOC)
9.7 Hybrid FM IBOC Third-order Intermodulation Product Frequencies
9.8 Hybrid FM IBOC and Analog Masks
9.9 Digital-to-Digital Spectral Regrowth Products
9.10 NRSC-5-A All-Digital FM IBOC Mask
9.11 Hybrid AM IBOC Spectral Regrowth under Mask
9.12 Hybrid AM IBOC and Analog Masks
9.13 NRSC-5-A All-Digital AM IBOC Mask
9.14 Amplitude Scale Factors of AM IBOC Sidebands

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