What is the proper set up for the tracking generator to 6 GHz? Where is the manual for this and I see the software only goes up to 1.2 GHz?
I also see in the manual that it warns in very strong terms about the extremely weak RF output circuit and how a mismatch could destroy the output of the signal generator. Amazing how they couldn't have put in a simple rf power rollback circuit to limit the power. Do you know what SWR that it can tolerate up to? Having said this, do you supply a constant 50-ohm load that can be used for testing when the antenna is not being used?
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The software covers the full 6GHz range and not sure why it showing for you up to1.2GHz limitation. Could you please check the tutorial?
To the last question: adding a power rollback is anything but simple in a handheld device, not mentioning distortion introduced. The SWR is not a problem when using low power modes (-30dBm output and lower) which are the recommended setup for normal use with the analyzer, so in other words, it is a note of caution but should be not any problem under normal usage regardless SWR.
For the 50ohm load, you can purchase the 50ohm termination.