Color synchronous signal is setup to resume subcarriercolor signal as same frequency and phase in receive end, which is suppressed in send end.
色同步信号是为了在接收端恢复与发送端被抑制掉的色副载波同频同相的载波而设置的。
2
The reason to produce beat interference of colorsubcarrier and sound intercarrier is analyzed with the introduction of considerable items for design and testing methods.