Hi again,
?
now I've read the original post thoroughly and have some comments and questions.
?
Re bullet 1
So you are saying that you experience phase lock loss issues(red error message on the screen)?
Given the symptoms you describe I assume that that is what you mean.
Or is it the other way around, you do not have any phase lock issues?
?
Re bullet 5
I think 3dBm directly at YIG output sounds too low, it ought to be over 10dBm. This goes for both fixed 3.8GHz YIG LO and the 3-6.8GHz YigTunedOscillator.
?
I suspect that you have an issue with the mixer/amplifier/ALC-control module in the A3 source module, that might cause the ALC to drive the amplifier too hard due to the low YIG output.
?
I would disconnect the YTO and test it separately,? search the file area for "8753 EYO" and "EYO J9" and you will find how to hook it up. Sweep it from around 60-160mA (or what is needed to cover the frequency range) on the main coil, put the SA on max hold. Also test the YIG LO.
?
Best regards
Marcus
