Volvo XC90: HD Radio™ limitations - AUDIO, MEDIA AND INTERNETVolvo XC90: HD Radio™ limitations

Limitations

  • Main channel vs. sub-channels (FM only): The main channel is the only channel that can receive in hybrid mode (both digital and analog). If a frequency has subchannels, they are broadcast in digital mode only. The main FM channel will be displayed as, for example, "WRIF-FM HD1". The sub-FM channels will be displayed as"WRIF-FM HD2", "WRIF-FM HD3", etc.
  • Reception coverage area: Due to current IBOC transmitter power limitations, the reception coverage area in digital mode is somewhat more limited than the station's analog coverage area. Be aware that, like all radio transmission technology, terrain, time of day, vegetation and buildings can have a positive or negative effect on radio reception.
  • Analog to digital/digital to analog blending: Analog to digital blending will occur as the signal strength reaches a preset threshold in the receiver. This will be noticeable in fringe areas (areas with weak reception) and is normal.

NOTE

There may be a noticeable difference in sound quality when a change from analogue to digital or digital to analogue occurs, such as:

  • Volume increase or decrease
  • Equalizer settings, i.e., Bass/ Midrange/Treble cut or boost
  • Time alignment (Digital program material in extreme cases can be as much as 8 seconds behind the analogue). This will noticeable as a "stuttering" effect.

The above items are dependant on the broadcaster's equipment settings and do not indicate a fault in the vehicle's radio receiver or antenna systems.

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