AMBPL Trace A Minus Trace B Plus Display Line
Description
The AMBPL command subtracts trace B from trace A (point by point), adds the display line
value to the difference, and sends the result to trace A. The AMBPL function remains in effect
until it is turned off by executing “AMBPL OFF;“.
A common use of trace subtraction is to normalize one trace with respect to another. For
example, traces are frequently subtracted to normalize the spectrum analyzer response when a
tracking generator is used. In such applications, amplitude units in
dBm
should be subtracted.
To
accomplish this, the display line should be set to 0
dBm
using DL as shown in the example.
To compare how you would use the AMB command to do the same operation, see examples 2
and 3 for the AMB command.
Query Response
ON
OFF
002
Programming Commands
5-61