VS1 Operations and Maintenance Manual Operating the transmitter
Page 2-54 Issue 3.1 2013-10-01
• Mode: Set the overall transmission mode. Available options are:
– FM: an analogue only mode, transmits a carrier, frequency modulated with audio.
– HD: all digital mode; this mode transmits the upper and lower digital sidebands of
OFDM IBOC carriers. HD transmitter is typically high-level combined (coupler or
spatial) with a paired FM only transmitter. See page 2-55 for additional calibration
settings. This mode requires additional hardware.
– FM+HD: also known as hybrid/simulcast or low-level combined, this mode transmits
the analog carrier (FM modulated) and the upper and lower digital sidebands of OFDM
IBOC carriers. See page 2-55 for additional calibration settings. This mode requires
additional hardware.
– DRM+: transmits a DRM OFDM signal using the I/Q stream from a DRM modulator
connected to the desired AES input. See page 2-55 for additional calibration settings.
This mode requires additional hardware.
Note:
Settings on the Presets tabs are shown/hidden based on the chosen settings. Not all settings are
available in all modes.
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