Technical data

4-33

Hardkey and Softkey Reference

of the cable dielectric (ε

) as:

VERIFY INSTRUMENT. allows you to run a routine that verifies the analyzer by measuring a device from the N1011A

verification kit and comparing the measured data to data provided in the kit.

VOLUME NUMBER. specifies the number of the disk volume to be accessed. In general, all 3.5 inch floppy disks are

considered one volume (volume 0). For hard disk drives, a switch in the disk drive must be set to define the number of

volumes on the disk. (This function only applies to external GPIB disks.)

WAIT x. pauses the execution of subsequent sequence commands for x number of seconds. Terminate this command

with x1. Entering a 0 in wait x causes the instrument to wait for prior sequence command activities to finish before

allowing the next command to begin. The wait 0 command only affects the command immediately following it, and does

not affect commands later in the sequence.

WARNING. selects the display warning annotation for color modification.

WARNING [ ]. brings up the color definition menu. The warning annotation default color is black.

WAVEGUIDE. defines the standard (and the offset) as rectangular waveguide. This causes the analyzer to assume a

dispersive delay. See OFFSET DELAY.

WAVEGUIDE DELAY. applies a non-linear phase shift for use with electrical delay which follows the standard dispersive

phase equation for rectangular waveguide. When WAVEGUIDE DELAY is pressed, the active function becomes the

WAVEGUIDE CUTOFF frequency, which is used in the phase equation. Choosing a Start frequency less than the Cutoff

frequency results in phase errors.

WIDTH VALUE. is used to set the amplitude parameter (for example 3 dB) that defines the start and stop points for a

bandwidth search. The bandwidth search feature analyzes a bandpass or band reject trace and calculates the center

point, bandwidth, and Q (quality factor) for the specified bandwidth. Bandwidth units are the units of the current

format.

WIDTHS on OFF. turns on the bandwidth search feature and calculates the center stimulus value, bandwidth, and Q of a

bandpass or band reject shape on the trace. The amplitude value that defines the pass band or reject band is set using

the WIDTH VALUE softkey. Four markers are turned on, and each has a dedicated use. Marker 1 is a starting point

from which the search is begun. Marker 2 goes to the bandwidth center point. Marker 3 goes to the bandwidth cutoff

point on the left, and Marker 4 to the cutoff point on the right. If a delta marker or fixed marker is on, it is used as the

reference point from which the bandwidth amplitude is measured. For example, if marker 1 is the delta marker and is

set at the passband maximum, and the width value is set to −3 dB, the bandwidth search finds the bandwidth cutoff

points 3 dB below the maximum and calculates the 3 dB bandwidth and Q. If marker 2 (the dedicated bandwidth

center point marker) is the delta reference marker, the search finds the points 3 dB down from the center. If no delta

reference marker is set, the bandwidth values are absolute values.

x1. is used to terminate basic units: dB, dBm, Hz, dB/GHz, degrees, or seconds. It may also be used to terminate

unitless entries such as averaging factor.

XMIT CNTRL [ ]. toggles the PLOTTER/PRINTER serial port data transmit control mode between the Xon-Xoff protocol

handshake and the DTR-DSR (data terminal ready-data set ready) hardwire handshake.

Y: REFL. converts reflection data to its equivalent admittance values.

Y: TRANS. converts transmission data to its equivalent admittance values.

Z: REFL. converts reflection data to its equivalent impedance values.

Z: TRANS. converts transmission data to its equivalent impedance values.

Velocity Factor

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