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8719ES about GPIB

Question asked by ansonjimli on Jun 1, 2009
Latest reply on Jun 1, 2009 by odanzy
i  use matlab to control VNA 8719ES. when i use
fclose(obj), delete(obj) to disconnet VNA . The channel plot(eg.S21) of The VNA  doesn't change even when i leave the element(eg . a filter) away . i want to know if there is a gpib commond must be used before 
fclose(obj), delete(obj). or are there other methods to handle this situation.  Thanks in advance!