Agilent Technologies 4294A Service Manual download pdf (Page 453)

Chapter 16 453

GPIB Command Reference

THRR

16. GPIB

Command Reference

( S - Z , :PROG )

for the linear Y axis format.)

For the linear Y axis format

height is a threshold value of the distance between the maximal value

(or minimal value) and the measurement point value (in

Figure 16-9,

value of |A-A

|, |C-C

|, and so on).

For the log Y axis format

height is a threshold value of the ratio of the larger value to the smaller

value: maximal value (or minimal value) and measurement point value

(in

Figure 16-9, values of A/A

and C

/C, and so on). More

specifically, the threshold value shown below.

When H > 0, L > 0: H / L

When H < 0, L < 0: L / H (for negative values, a larger value has a

smaller absolute value, and therefore the denominator and

numerator are reversed.)

When H ≥ 0, L ≤ 0: No peak and negative peak are detected. Note

that, only when the value of heig ht is 1 (initial value), all maximal

values (or minimal values) are considered as peaks (or negative

peaks).

Where, H is the larger value and L is the smaller value. More

specifically, when judging whether a maximal value is a peak, H is the

maximal value and L is the measurement point value. When judging

whether a minimal value is a negative peak, H is the measurement

point value and L is the minimal value.

For the linear Y axis format, if height is set to 0 (initial value), all maximal values (or

minimal values) are considered as peaks (or negative peaks). On the other hand, for the log

Y axis format, if height is set to 1 (initial value), all maximal values (or minimal values)

are considered as peaks (or negative peaks).

Parameters

If the specified parameter does not reach the lower limit of the setting range, it is set to the

lower limit. If the specified parameter exceeds the upper limit of the setting range, an error

occurs and the command is ignored.

Query response {numeric}<newline><^END>

Corresponding

key

No front panel key is available to execute this function.

Description Condition of the peak/negative peak: height

Range For the linear Y axis format: 0 to 9.9E37

For the log Y axis format: 1 to 9.9E37

Initial value For the linear Y axis format: 0

For the log Y axis format: 1

Unit Varies depending on the measurement parameter (refer to the

explanation of unit in

“SCAL” on page 423).

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Agilent Technologies 4294A Service Manual Page 453

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