Agilent Technologies 4294A Service Manual download pdf (Page 409)

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Chapter 16 409

GPIB Command Reference

REFV

16. GPIB

Command Reference

( S - Z , :PROG )

REFV

Syntax REFV <numeric>[OHM|DEG|RAD|SIE|H|F|PCT]

REFV?

Description Sets the value indicating the reference line in the linear Y axis format, or the full scale

value in the polar chart format. To set the value indicating the reference line in the complex

plane format, use the

“REFX” command on page 410 and “REFY” command on page 410.

Parameters

If the specified parameter is out of the allowable setting range, the minimum value (if the

lower limit of the range is not reached) or the maximum value (if the upper limit of the

range is exceeded) is set.

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

Corresponding

key

[Scale Ref] - REFERENCE VALUE

Description Value indicated by the reference line or full scale

Range For the linear Y axis format:

Varies depending on the measurement parameter as follows:

For |Z|, R, X: -1E12 to 1E12

For other than |Z|, R, X: -1E9 to 1E9

For polar chart format:

10E-15 to 1E9

Initial value For the linear Y axis format:

Varies depending on the measurement parameter as follows:

For |Z|, R, X, Rs, Rp: 500E3

For θ: 0

For |Y|, G, B, D: 500E-3

For Cs, Cp: 500E-6

For Ls, Lp: 5

For Q: 500

For polar chart format:

Unit Varies depending on the measurement parameter (refer to the

explanation of unit in

“SCAL” on page 423).

Resolution

1E-15

*1.This is the minimum value (when the set value is small). The resolu-

tion becomes larger as the set value becomes larger.

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Agilent Technologies 4294A Service Manual Page 409

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