Setting The Gate Time - YOKOGAWA TA220 User Manual

4.5

Setting the Gate Time

Procedure
KEY
LOCK SEC RANGE
Explanation
IM 704610-01E
Display 2
Display 1
ns ms s
% V
%/
S
1. Press SHIFT+FUNCTION (GATE TIME). GateTime appears in Display 2, and
the setting value appears in Display 1.
2. Use rotary knob & < > to set the gate time.
You can set the time (gate time) during which the measured values of pulse width and
phase difference are stored in the acquisition memory.
Gate Time
The duration can be set within the following range.
Setting range
When D-to-C high speed calculation (see section 4.9) is OFF:
1 to 1000 ms (in 1 ms steps)
When D-to-C high speed calculation is ON:
2 to 1000 ms (in 2 ms steps)
Note
Loading the Measured Values When D-to-C High Speed Calculation is OFF
• When the gate time is set between 100 ms and 1000 ms, the measured values are acquired
in units of 100 ms. The measured values are acquired so that the sum of the gate times in
units of 100 ms add up to the specified gate time, and those values are used to determine the
jitter (statistical value). The calculated value is displayed or output as a DC level signal (see
section 7.1). Meter indication, numerical display, and DC output are updated as shown below.
When measurement is performed only once using the SSTart communication command, if
external arming (see section 4.6) is selected, the acquisition is performed all at once without
being divided up by the specified gate time in 100 ms units.
Example in which the gate time is set to 250 ms
50 ms
100 ms 100 ms
RF
signal
Meter indication, DC output
50 ms
100 ms 100 ms
RF
signal
Numerical display function
<<For a functional description, see section 2.4>>
L.MARK R.MARK
DISP OFF
MEASURE
E2T
JUDGE
PW
GO
BD x1 D to C
NO-GO GATE TIME DELAY BLOCK
FUNCTION
MEDIA ARMING INHIBIT
SHIFT SHIFT REMOTE STORE UTILITY
10%
LOCAL RECALL ENTER
20%
LEVEL
JDG LEVEL COUPLE EQ BOOST
S
POLARITY TRIG IMPEDANCE EQUALIZER
50 Ω
AUTO MAN 1M Ω CONV
SEC RANGE
SCALE
50 ms
100 ms 100 ms 100 ms
50 ms
100 ms 100 ms 100 ms
The phrase, "rotary knob & <>"
is used in the following
explanation to instruct the user
to enter numerical setting values
using the knob and arrow keys.
For details on this procedure,
see section 3.7.
50 ms
100 ms
50 ms
100 ms
4-7
4