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ON
by 50%. This setting should be used when noise is present in the signal
environment. However, if the threshold level is close to a peak amplitude (positive
or negative), a count will not occur if the signal does not cross both hysteresis
levels due to the increased hysteresis band.
decreases hysteresis and increases sensitivity.
CONFigure
reset (
Noise Rejection from Bandwidth Limiting
reducing the counter's bandwidth from 350 MHz to 100 kHz (see
Limiting (Low-Pass)
rejection for frequencies in this range is then obtained through
ON
Noise Rejection Example
//period measurement of expected 10 MHz signal,
//use channel 1
CONF:PER 0.1E-6,.001,(@1)
Threshold Slope
Keysight 53210A User's Guide
enables noise rejection, thus increasing hysteresis and decreasing sensitivity
and
MEASure
) or instrument preset (Preset), noise rejection is disabled (off).
*RST
Filter") also provides noise rejection. Additional noise
.
INP:IMP 1.0E6
INP:RANG 50
INP:COUP AC
INP:LEV 3
INP:NREJ ON
53210A Input Signal Conditioning
do not change the noise rejection setting. Following a
//set impedance to 1 Mohm
//set range to 50
//set AC coupling
//set 3V threshold level (absolute)
//enable noise rejection
disables noise rejection which
OFF
For input signals up to 100 kHz,
INPut:NREJection
4
"Bandwidth
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