MULTIPLE TIMEBASE SAMPLING SCOPE

A test and measurement instrument includes a first input port and a second input port that receive a first input signal modulated according to a first clock signal and a second input signal modulated according to a second clock signal, respectively. The first clock signal and the second clock signal may be asynchronous. The instrument also includes a phase reference that generates clock data for the second clock signal. The instrument includes a processor that determines time bases for the input signals that comprise different rates based on the received and/or generated clock data. The instrument also includes a display coupled to the processor. The display concurrently displays the first input signal in a first graticule according to the first time base and the second input signal in a second graticule according to the second time base. 种测试和测量仪器包括分别接收根据第时钟信号调制的第输入信号和根据第二时钟信号调制的第二输入信号的第输入端口和第二输入端口。所述第时钟信号和第二时钟信号可以是异步的。所述仪器还包括相位参考，所述相位参考针对第二时钟信号生成时钟数据。所述仪器包括处理器，所述处理器基于所接收和/或生成的时钟数据而确定用于输入信号的包括不同速率的时基。所述仪器还包括耦