Agilent Technologies Twelfth 4287A RF LCR Operation Manual page 266

Specifications and Supplemental Performance Characteristics
Basic Measurement Characteristics
Table 12-2 Values of Ts, Tt, Tp, Tr and Tm (Typical)
Ts
Tt
Tp
Tr
Tm
*1. For example, this can be a level change from -15 dBm to -10 dBm.
*2. For example, this can be a level change from -20 dBm to -15 dBm.
*3. To set this, use the :TRIG:DEL command.
*4. To set this, use the :TRIG:SEQ2:DEL command.
*5. This applies when the offset cancel function is turned off. Add 2 [ms] when the offset cancel
*6. This applies when the averaging factor is 1. Add 3.9 [ms] for every increase of the averaging
NOTE
Time settings Ts, Tt, Tp, Tr and Tm indicated in Table 12-2 are the values taken when the
instrument makes a measurement without receiving any external request (such as user
actions through the front panel keys, keyboard, or mouse) and without performing
non-measurement tasks (such as printout and network connection handling) while the
measurement results display is off.
Table 12-3 Values of Ts (Typical)
266
Measurement condition setup
time
Trigger delay time
Measurement point delay time
Rdc measurement time
Measurement data acquirement
time
function is turned on.
factor by 1.
Change in test signal frequency
since last measurement cycle
No change
Increase Change in frequency
crossing 1.73995 GHz
Change in frequency
without crossing 1.73995 GHz
Decrease Change in frequency
crossing 1.73995 GHz
Change in frequency without
crossing 1.73995 GHz
*1. For example, this can be a frequency change from 1.7 GHz to 1.8 GHz.
*2. f: Test signal frequency [Hz] currently in effect, fp: Test signal frequency [Hz] in the
last measurement
*3. For example, this can be a frequency change from 1.8 GHz to 1.9 GHz.
*4. For example, this can be a frequency change from 1.8 GHz to 1.7 GHz.
*5. For example, this can be a frequency change from 1.7 GHz to 1.6 GHz.
Time [ms]
•If the test signal level has changed
or -22.95 dBm since the last measurement cycle: 300 ms
•If the test signal level has changed
-12.95 dBm or -22.95 dBm or if there is no level change in
the test signal: see table below.
*3
0.0 ms to 1000.0 ms
*4
0.0 ms to 1000.0 ms
*5
2.0 ms
*6
6.9 ms
Ts [ms]
0
3.4 + 1 × (f - fp) / 1E9
*1
1 × (f - fp) / 1E9
*3
1.7 + 2 × (fp - f) / 1E9
*4
2 × (fp - f) / 1E9
*5
*1
crossing -12.95 dBm
*2
without crossing
*2
*2
*2
*2
Chapter 12