I use Agilent e4438c in the lab and I need 40 mhz I/Q signal. I create I/Q data with Agilent e4438c I/Q output but I could not configure the frequency to 40 MHz Anyone know hot to do this pls help me
could you possibly use more words to explain what you are trying to do? I am not sure I understand what you are saying.
the e4438 has an I/Q INPUT, but does not have an I/Q output. I has one output connector labeled "RF OUTPUT". when properly set up, you can get a 40 MHz signal out of that one connector, and as you vary I and Q analog (i.e. very low frequency} inputs, the "RF OUTPUT" will vary accordingly in phase and amplitude.
E4438c actually has if equipped with an internal baseband generator option.
The initial post can be read so that the OP has an internal baseband generator option (which one, there are different types). But still unclear what he wants to achieve. And what's meaned with a "40 mhz I/Q signal"? 40 MHz bandwidth is a possible setting of the I/Q Modulator Filter.
From memory.
You need to create a file of the modulated waveform (Look at the literature from Agilent on how to do that ). Once you have the file in memory you select the segment/waveform. On the same window when you select / load the file there is a setup option. It is the frequency of the modulation.
On the Sig Gen Press:
"Mode"
"DualARB"
"ARB Set up"