Giga-tronics 8650B Series, Руководство по эксплуатации

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Series 8650B Universal Power Meters
3-120 Publication 31470-001, Rev C, November 2, 2017
3.19.3 Burst Dropout Tolerance
Commands which define a tolerated burst dropout time are based on the BTDP function code (this feature is
available only in BAP mode):
Syntax: [AE or BE] BTDP [c] EN
[AE or BE] prefix specifies Sensor A or Sensor B
BTDP along with the numeric variable [c] sets the burst dropout tolerance duration in BAP
measurement mode
[c] specifies the dropout time in milliseconds with a range of 0 to 3.346 when the burst end
exclude time is 0.000 ms. The value entered will be rounded to the nearest multiple of 0.027 ms.
For non-zero values of end exclude time, the maximum value of burst dropout time is limited to
3.396 ms minus the end exclude time. The command is ignored for [c] values that are out of
acceptable range. The actual value can be checked by means of a MEAS query. The dropout
time represents a guaranteed minimum time; the time actually tolerated will usually be greater,
and can be up to 2.125 times greater. (Note: Selecting a value of zero effectively disables this
function)
Example:
AE BTDP .02 EN ! SETS DROPOUT TIME TO NEAREST DISCRETE VALUE TO 0.02 mS (=0.027 mS)
! FOR BAP MEASUREMENTS ON SENSOR A
Example 2:
BE BTDP .06 EN ! SETS DROPOUT TIME TO NEAREST DISCRETE VALUE TO 0.06 mS (=0.054 mS)
! FOR BAP MEASUREMENTS ON SENSOR B
3.19.4 Min/Max Power Value
The Min/Max feature monitors the measurements being taken, and maintains a continuously updated record of
the highest and lowest values measured so far.
NOTE:
The Min/Max feature can only be used in the standard measurement collections modes (not in the
fast modes).
3.19.4.1 Enabling the Min/Max Feature
NOTE:
These commands are specific to the active Channel. These commands must be preceded by the
appropriate Channel Configuration using the CH [n] EN command. See Section 3.7.4 for details.
The Min/Max feature is enabled or disabled by simple commands consisting of one of two function codes:
Syntax: [MN0 or MN1]
MN0 disables the Min/Max function for the active channel
MN1 enables or resets the Min/Max function for the active channel. Sending this command
while the Min/Max function is active will reset the stored Min and Max values
Example:
MN1 ! ENABLES THE MIN/MAX FEATURE
Example 2:
MN0 ! DISABLES THE MIN/MAX FEATURE
The MN1 command, like the LG command, has the effect of specifying logarithmic measurement units (dB or
dBm). Like the PH0 and CR0 commands, this command will disable crest factor and peak hold measurements.