82 53220A/53230A User’s Guide
3 53220A/53230A Measurements
The commands used to make frequency measurements are:
MEASure:FREQuency? [{<expected>|MINimum|MAXimum|DEFault}
[,{<resolution>|MINimum|MAXimum|DEFault}]][,<channel>]
CONFigure:FREQuency [{<expected>|MINimum|MAXimum|DEFault}
[,{<resolution>|MINimum|MAXimum|DEFault}]][,<channel>]
- expected is the expected input signal frequency. resolution is the
desired measurement resolution in hertz. The parameter ranges are:
expected (channels 1 and 2): 0.1 Hz - 350 MHz (default = 10 MHz)
expected (channel 3 Option 106): 100 MHz - 6.0 GHz (default = 500 MHz)
expected (channel 3 Option 115): 300 MHz - 15 GHz (default = 500 MHz)
resolution (all channels): 1.0E-15 * expected to 1.0E-5* expected
(default resolution corresponds to a 0.1s gate time)
- channel is counter channel 1, 2, or 3 specified as (@1), (@2), or (@3).
Frequency Measurement Examples
// using MEASure? - measure 20 MHz signal with 0.1 Hz
// resolution
*RST // reset to start from known state
MEAS:FREQ? 20E6, 0.1, (@1)
------------------------------------------------------
// using CONFigure - measure 20 MHz signal with
// 0.1 Hz resolution, take 10 readings
*RST // reset to start from known state
CONF:FREQ 20E6, 0.1, (@1)
SAMP:COUN 10 // take 10 readings
READ?
Notes
1. See Chapter 5 for information on triggering and number of readings per trig-
ger (sample count).
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