User`s guide

53220A/53230A User’s Guide 105
53220A/53230A Measurements 3
Notes
1. If the phase format is CENTered, a typical phase measurement for signals
270
° out of phase for example, could be -9.10799485574691E+001. If the
format was POSitive, the phase difference measured might typically be
+2.68904450044343E+002.
2. Phase measurements represent the signal phase of the first channel relative
to the second channel in the pair. For example, if the phase format is
CENTered and the signal on channel 2 is delayed for a period equivalent to
90
°, the measurement will be 90° for the channel pair (@1),(@2). If under
the same signal conditions the channel pair were specified as (@2),(@1), the
measurement would be -90 degrees.
Single-Period
A form of time interval measurement - the single-period measurement, is
based on a single waveform cycle. Single-period measurements provide mea-
surement of “single-shot” or one cycle events; and allow analysis of signal
characteristics (e.g. jitter) that would otherwise be averaged out with standard
(averaging) period measurements.
The commands used to make single-period measurements are: