Calibrating Agilent N5183 Signal generator for specific output level

Hi,
Newbie to labview enviornment! I am trying to write a VI to calibrate Agilent N5183 to a specific output. For e.g. if I want to have -4.5 dBm output from my setup (as displayed on my power meter) I will have to set the sig gen to say 7dBm taking into account my losses etc.
Any pointers how do I start tacking this? I think I will have to create a while loop to check power levels, however I do not know how to increment and decrement the sig gen amplitude and stop at the desired level!
Thanks in advance for any help.
PS: Using Labview 2013, on win XP machine!
Solved!
Go to Solution.

mkossmann wrote:
3. Adjust pout to sign Gen to desired level while monitoring power on power meter
Why do you need that step at all ? Its not clear from your description what makes the difference between the readout of the power meter and the output level setting of the sigGen.
I have had to do this plenty of times. Especially in the RF realm, you want your tests to have a certain power level AT THE UUT. So you have to adjust your signal generator to overcome the losses in the couplers, cables, etc.
For this, all you need to do is set your signal generator to the level you want. Then measure with the power meter. Subtract the measured from the desired and add that much more to the set output. Repeat as needed. I would recommend using a conditional FOR loop so you can easily set a limit to how many times you adjust (I have been in endless loops due to weird situations here).
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