Language Reference

MKDREFA

MKDREFA

Sets a reference marker for a delta marker at a speci￿c amplitude. Marker

 

position is not restricted to a trace point.

 

 

Item

 

 

 

 

Description

 

 

 

 

 

 

 

 

Range

 

 

6300 dB

 

 

Example

100

OUTPUT

723;"MKDREFA

-23.5DB;"

Set

the marker's vertical position.

 

110

OUTPUT

723;"MKDREFF

1300NM;"

Set

the marker's horizontal position.

Description The MKDREFA command, in conjuction with the MKDREFF command, positions the general reference marker anywhere on the display. (Normal

active markers must reside upon a trace point, you can set only the marker's wavelength or amplitude, but not both. Refer to MKN, MKAL or MKAR.)

When the vertical scale is in logarithmic mode, the amplitude units are in dBm; in linear mode, the amplitude units are in watts (W, MW, or ￿W).

When relative-marker mode is activated with the MKAL or MKAR command, the MKDREFA command speci￿es the amplitude di￿erence from the reference marker. When the vertical scale is in logarithmic mode, the amplitude units are in dBm; in linear mode, the amplitude units are in ratio, as indicated with the X in the syntax diagram.

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