Hello israel,
I would recommend looking at the TDS210 instrument drivers that we have available online. They are easier to use than direct GPIB commands, and the IVI versions offer improved performance along with many helpful features. You can find our instrument drivers at: http://zone.ni.com/idnet
Then click "Downloads" to proceed to the instrument driver search page. You may find more information on IVI Instrument Drivers at "http://www.ni.com/ivi".
Jeremiah Cox
Applications Engineer
National Instruments
http://www.ni.com/ask