Understanding Auto Transport Mux Rate
Auto Transport Mux Rate (TMR) is a feature of Adtec EN-Series built with the optional
modulator. This feature will automatically configure the overall data rate of the encoder (its
TMR;Transport Mux Rate), based upon its Modulator configuration. In other words, when the
modulator Transmit configuration is set to 'ENABLED', the encoder’s TMR becomes the
Modulator's configured Interface Rate. The TMR is a key configuration for modulator
functionality and must match the modulator interface rate.
Please note that the configured video and audio data rates must be lower than the
targeted modulation data rate for this feature to work properly.
For example, HD Video (3Mbps) + 8 pairs of Mpeg1 Layer2 @ 384Kbps ( 3.072Mbps
) = ~6.2Mbps.
The TMR will not fit into a 3MBaud DVB-S QPSK 3/4 modulation configuration ( As
3Mbaud with this settings would only support a data rate of 4.14Mbps). In this case,
additional audios would need to be turned off or rates adjusted to meet the 4.14Mbps
modulation data requirement.