VSB modulator symbol clock processing to reduce jitter/phase noise and sampling artifacts

A re-transmitter that re-transmits a received digital television signal comprising:

• a demodulator that demodulates the received digital television signal to produce a received data stream and a received symbol clock;
• a buffer;
• a write controller that writes the received data stream into the buffer;
• a frequency/phase locked loop having a narrowband loop filter, wherein the frequency/phase locked loop regenerates the received symbol clock as a regenerated symbol clock having substantially no phase noise;
• a read controller that reads the data stream from the buffer in response to the regenerated symbol clock;
• and,
• a modulator that re-modulates the data stream read from the buffer for re-transmission as a re-transmitted digital television signal.

A re-transmitter that re-transmits a received digital television signal comprising:

• a demodulator that demodulates the received digital television signal to produce a received data stream and a received symbol clock;
• a frequency/phase locked loop having a narrowband loop filter, wherein the frequency/phase locked loop regenerates the received symbol clock as a regenerated symbol clock having substantially no phase noise;
• a buffer;
• a buffer controller, wherein the buffer controller writes the received data stream into the buffer, wherein the buffer controller reads the received data stream from the buffer in response to the regenerated symbol clock, and wherein the buffer controller prevents overflow of the buffer;
• and,
• a modulator that re-modulates the received data stream read from the buffer for re-transmission as a re-transmitted digital television signal.