:MEASure:COUNter
:MEASure:COUNter [<source>]
:MEASure:COUNter? [<source>]
<source>
string
CHANnel<n> EXTernal
The source for the counter measurement
Installs a screen measurement and starts a counter measurement. If the optional source parameter is specified, the current source is modified. Any channel except Math may be selected for the source. The counter measurement counts trigger level crossings at the selected trigger slope and displays the results in Hz. The gate time for the measurement is automatically adjusted to be 100 ms or twice the current time window, whichever is longer, up to 1 second. The counter measurement can measure frequencies up to 125 MHz. The minimum frequency supported is 1/(2 X gate time). The Y cursor shows the edge threshold level used in the measurement. Only one counter measurement may be displayed at a time.
<source><NL> <source> ::= count in Hertz in NR3 format
Start a counter measurement on the specified channel
:MEASure:COUNter CHANnel1
Query the counter frequency of the specified source
:MEASure:COUNter? CHANnel1