IBDA_DiseqCommand::put_DiseqUseToneBurst Method

[This documentation is preliminary and is subject to change.]
Enables or disables Tone-Burst commands.


HRESULT put_DiseqUseToneBurst(
  [in]  BOOLEAN bUseToneBurst


  • bUseToneBurst [in]
    If TRUE, Tone-Burst commands are enabled. Otherwise, Tone-Burst commands are disabled.

Return Value

If the method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.


The Tone-Burst command uses a 22-kHz carrier signal to select either source position A or source position B.

Typically the driver enables or disables Tone-Burst as needed when the application calls IBDA_DiseqCommand::put_DiseqLNBSource. However, you can use the put_DiseqUseToneBurst method to switch this mode on or off, either to improve channel switching or to maintain compatibility with particular equipment. Note that using Tone-Burst can increase the amount of time required for tuning by about 40 milliseconds.


Client Requires Windows 7.
IDL Declared in Bdaiface.idl.

See Also


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Build date: 12/4/2008