digital carrier การใช้

The meaning of CGA is that connectivity on the digital carrier has failed.
However, the digital carriers require the bandwidth to be widened, which would cause interference to stations on the first adjacent channel.
Most other digital carrier-modulated schemes, for example QAM and OFDM, can be characterized as double sideband modulation, resulting in the following relation:
On the WAN side, the DSU, via a CSU, interfaces with a digital carrier such as DS3 or a low speed Digital Data Service.
The actual video signal, which is ATSC, where the ATSC digital carrier is broadcast at 0.31 MHz above the lower bound of the channel.